Ive never done it quite like this before. .0492, awesome info that puts a new spin on an old trick.

Love all ur vids.. did my swap with ur help .. keep teaching bud 💯💯💯🤙🏻🤙🏻

@HeadFlowInc

3 жыл бұрын

Thank you for watching and the feedback I appreciate it! JD

Buy a pushrod checker put pushrod in place when the cam is on its base circle then run rocker arm bolt down hand tight . Once you adjust pushrod checker to proper length ( rocker-arm should have no up and down movement (0 lash) but moves side to side freely. Then add pushrod checker length and lifter preload value together and that will be your pushrod length needed.

@HeadFlowInc

Жыл бұрын

Already done the videos on my channel. The PR length checking tool is the most accurate method for sure. kzread.info/dash/bejne/dIuLt8mziavFfrA.html

So with this added preload on that one valve could have Aided in premature cam lobe wear? And is why we should always check each push rod after a cam install along with many other things,

@HeadFlowInc

5 жыл бұрын

Brian Roagers I agree we should be checking for proper pushrod length to set the lifter preload. I found lifter preload varies greatly between manufacturers from .050-.060”, .070” to .090-.100” You wouldn’t hurt anything unless you bottomed out the lifter plunger or not enough preload can be very bad as well. Check out this video, much better way to set the proper preload. kzread.info/dash/bejne/dIuLt8mziavFfrA.html

when you torqued No 1 intake is wasn't on the base circle, as soon as you start the valve begins to open. watch the video and keep your eye on the valve.

@HeadFlowInc

4 жыл бұрын

Brooklyn202 You are 100% correct, the valve moves for sure. I have no idea why it was off, people do make mistakes, I made one apparently. I no longer trust this style of measuring the lifter preload, it’s way easier to buy the adjustable pushrod. EO-IC Exhaust just beginning to open adjust the Intake Valve. Intake just beginning to Close adjust the Exhaust Valve. kzread.info/dash/bejne/dIuLt8mziavFfrA.html

I never have liked this setup on the LS engines it’s an in-between shaft mount setup with zero adjustability. I think this is why so many LS cars kill lifters and wear out guides. Great video though this is where coming from SBC stuff like yourself helps you notice things that a lot of the new kids have no clue about.

@HeadFlowInc

6 жыл бұрын

TPV Productions I’m almost ready to fire the fresh 4.8/TH400 combo, hopefully by this weekend. I’m building a pump gas daily driver, to start the Goal is 300 rwhp, then low boost single turbo limited to 500 rwhp. Mild by today’s standards. 👍😎

@TPVPRO

6 жыл бұрын

HeadFlowInc You should have no problem making 500. That's super easy on a LS for someone like yourself. 👍💪

Ok people watching this vid .047 is one full turn with out rocker ratio.You must factor in the rocker ratio so it is .047 x 1.7 which equals .0799 of preload with a full turn and 3/4ths of a turn is .0599..you want to be in the middle of your plunger travel..a ls7 lifter has .126 of travel while older ls1 have .200 travel..ls7 lifters have a plunger cup higher of ruffly .050 so this throws off stuff if you swapped lifters..buy a comp push rod checker its worth the $25 just remember to never spin the motor with it in..easiest way to get to eoic method is stick pushrod in the exhaust side..rotate engine while holding your thumb on the pushrod,once it starts to move up you are now on the intakes base..stick your adj pushrod in and lenghen it till you just get the wiggle out the tip.you then pull out the pushrod and measure it..you then add what your desired preload to that length and that is the pushrod length you need..now stick it back in the intake side.hold thumb over top and then turn the engine over till you hit max lift and you feel the pushrod just start to go down..now you are ready to do your exhaust side,take pushrod checker and back it down slightly and then repeat the steps you did on the intake side to hit zero lash..pull out and check length then add your preload you want for what your lifters call for..a little longer pushrod will stop the sewing machine noise if your one of them people who hate it and think something is wrong..but I do not recommend this I shot for mid travel unless I'm super tight on a motor for ptv and it will be more along the lines of a race engine then I run minimal preload just in case a lifter pumps up and also this allows the engines to rev faster..hope this helps some people

@HeadFlowInc

5 жыл бұрын

ghost727 Watch this video: lash should be .0528” but the lifter made a knocking sound. Not a tick, sewing machine, but lifter knock. kzread.info/dash/bejne/YmSWt6ureqqXhM4.html

Did this method for alo 16. & after a couple of revolutions there were some rockers that i could rattle a small fraction. But have no oil pressure to everything yet because no prelube yet are start. Is this normal

@HeadFlowInc

5 жыл бұрын

Ralph Huff Two things: 1. Hydraulic lifter plungers will compress and be loose until the engine has oil pressure to “pump up”. 2. I ended up buying a $25.00 adjustable pushrod to verify my PR length. I ended up setting my lifter preload at .070”. Using the adjustable pushrod is way easier, faster and accurate. There’s a lot of recommendations on what preload to use ranging from .050” to .100” kzread.info/dash/bejne/dIuLt8mziavFfrA.html

So I'm just a little curious.. when you were tightening the Rockers at 8 minutes and 20 seconds roughly when you were tightened it and the valve was cracking open vs the others that you were showing it would only pre-loading the lifter. Was the cam in the wrong position and that's why the valve was cracking open on that one and different from the others or is there something else that I'm not understanding. I'm not trying to say you did something wrong I'm trying to understand why one was different than the other two far as cracking the valve open versus pre-loading lifter.

@HeadFlowInc

4 жыл бұрын

all the boost Using the EOIC method of adjusting valves, the acronym stands for: Exhaust valve starts to Open you can adjust the Intake valve on that cylinder. Intake valve goes fully open as it just starts to close you can adjust the exhaust valve on that cylinder. Don’t confuse “Just started to open” & “Just started to Close” EO-IC The proper and more accurate way to set up the lifter pre-load and pushrod length is to buy a $25.00 adjustable pushrod for the LS engines, this is what I ended up doing later in the vehicle. kzread.info/dash/bejne/dIuLt8mziavFfrA.html

Yeah didn't think of that my pushrods r 7000 & 7050. So I should hav a different preload than the other aslo did u say 2 check preload with the guide rail out?

@HeadFlowInc

4 жыл бұрын

MicTheGreaseMonkey I don’t know anything specific to the 3800, I’d have to research it. I highly recommend you get a manual or some reference material on building the 3800 V6. I’m at a loss on this topic; wish I had more experience with the platform. I don’t even know what year your 3.8 is? JD

Good vid m8 do i hav 2 position each each cylinder @ tdc when I set the lash on the at cylinder?

@HeadFlowInc

4 жыл бұрын

MicTheGreaseMonkey This method allows you to start on one end and work across adjusting one valve at a time. As you can see you will need a way to turn the engine over while watching the rocker/pushrod movement, which means there can’t be excessive slack. Here’s a GM service guide: With the engine in the number one firing position, tighten the following rocker arm bolts: Tighten Tighten cylinders 1,2,7 and 8 exhaust valve rocker arm bolts to 30 N·m (22 lb ft). Tighten cylinders 1,3,4 and 5 intake valve rocker arm bolts to 30 N·m (22 lb ft). Rotate the crankshaft 360 degrees. Tighten the following rocker arm bolts: Tighten Tighten cylinders 3, 4, 5 and 6 exhaust valve rocker arm bolts to 30 N·m (22 lb ft). Tighten cylinders 2, 6, 7 and 8 intake valve rocker arm bolts to 30 N·m (22 lb ft). Install the rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left or Valve Rocker Arm Cover Replacement - Right .

@micthegreasemonkey2918

4 жыл бұрын

@@HeadFlowInc hav u seen Ellison empire's clip on adjusting valves do u know if he is referring 2 roller valves or flat valves?

Soaking the lifters in oil over night compared to installing them dry, will that effect the preload?

@HeadFlowInc

4 жыл бұрын

J Robles It should not change the preload but it can increase the plunger resistance when finding zero lash. The internal lifter plunger will slightly compress when finding zero lash, if the lifter is full of oil it may resist slightly. Just make sure you’re using a light touch when you spin the pushrod during pre-adjustment. I will say the best/easiest way to find the correct Pushrod length is to buy one of the $25.00 LS adjustable pushrods online. Using the turns to torque is not nearly as accurate. I have a video showing how easy the adjustable PR is to use! JD kzread.info/dash/bejne/dIuLt8mziavFfrA.html

So I checked mine and have about 1/8 short of a half turn on both intake and exhaust. I'm looking for another 3/4 turn and going by this vid I need .0369 (one turn is .0492) added to a 7.400 rod. What size rod would I need? Or how much decimal does a 1/4 turn equate to in decimal rod length?

@HeadFlowInc

Жыл бұрын

PR 7.400” + .0369”= 7.4369” Looking at the commonly available lengths you can try 7.425” or 7.450” You really need .070”+ lifter preload. Note: The plunger in the lifter is super easy to compress, only flick the pushrod with one finger while turning or wiggle/shake the rocker to identify true zero lash. Pinching and turning the PR is too strong and leads to a false reading. The PR length checking tool is way easier see my video. kzread.info/dash/bejne/dIuLt8mziavFfrA.html

Isnt the 1.25 : 1.5 turn meant to be done with an adjustable push rod and not the rocker arm bolt itself? I'm not sure the thread length would cross over when it's done at the pivot point, luckily hydrilic lifters are a little forgiving hope you build goes well.

@HeadFlowInc

5 жыл бұрын

NoSleepRacing I’m buying an adjustable pushrod to set my lifter preload exactly. Here’s what I’ve been told: Yes you can measure the rotations on the M8-1.25 bolt to torque with a real pushrod, BUT you have to multiply the compression distance of the bolt by 1.588” to find the Net preload! Here’s more confusing information on suggested lifter preload: Katech recommends .070” Comp Cams .050” Brian Tooley.100” 😳😳😳 There’s theories on why you would want a deep preload, it helps with valve float. It’s frustrating people share half-truths or plain don’t know how to measure preload. Using the adjustable PR is the easiest and most accurate way to find PR length! The tool is only $21.00

So wait, what are you going to do with that .030" shim now? How do you fix that?

@HeadFlowInc

6 жыл бұрын

Lime The .030” shim is how I set the needed 1.800” installed height needed for the Comp Cams 918 Springs. The shim stays, the only other way to correct the issue is by replacing the valve seat. During the process of correcting the poor work of the first shop who attempted a valve job on these heads, Jack had to cut only one exhaust seat more than he wanted to clean up the chatter marks. It will be fine, everything is as it should be! 😉👍

@Limeayy

6 жыл бұрын

oh ok

what if I torque my rocker arm down and it's just where the pushrod doesn't turn by hand .. then I add .035 to that length in my case for the preload ?

@HeadFlowInc

2 жыл бұрын

The keys are making sure the lifter is on the backside or heal of the lobe and a “Light” touch when spinning the pushrod. You do not try to grab and spin the pushrod, it’s like a flick or barely rolling between the fingers to find zero lash. You’d be surprised how easily the plunger in the lifters will start to compress. As for lifter preload it depends on what the manufacturer wants, it ranges from .025”-.100”. .050”-.070” seems really popular. JD

@TheOklahomabourne

2 жыл бұрын

@@HeadFlowInc cool I think I have a pretty good understanding now .. no reason to really torque the bolt . I was thinking that from hand tight would add preload I guess .. I got the Johnson 2116lsr lifters , they say .035 +/- .010

Hi m8 u wouldnt hav the same sequence 4 a a gm v6 3800 l67?

@HeadFlowInc

4 жыл бұрын

Ive no experience with the GM 3800 V6, I don't want to mislead you. Make sure you verify both lengths, Intake and Exhaust many times they can be different. Look it up to be sure but I think the lifter pre-load should be .050'-.070'

Only way that one rocker could be off is if the valvestem is stretched , or the valve seat is sunken into the head ... spring shim don't matter

@HeadFlowInc

Жыл бұрын

You are correct, sir, the original shop did such a poor job trying to do a valve job, the new shop had to cut one of my intake seats an extra .030” to fix the damage they had done. The option was pay to replace the seat altogether and machine it, or leave it alone and deal with that one valve with a slightly taller stem height. So you get a gold star ⭐️ on this one! JD

Good work

The valve tip is going to be same height whether you have any shims under the spring or not.

@HeadFlowInc

3 жыл бұрын

Incorrect, you’re not accounting for the amount of material removed from the valve seat and/or valve face during a valve job. The more material cut/removed from the valve seat allows the valve stem to protrude further through the head because the valve physically seats deeper in the hole. When a machine shop does a valve job they have a “margin” where they set the valve stem height by grinding the valve tip to establish the needed height. Now, when an excessive amount is removed from the seat, there’s only so much you can remove from the valve tip, requiring a new seat to restore the stem height. I hope this helps you understand how stem height can vary. JD

@ashlyhoward26

3 жыл бұрын

@@HeadFlowInc I took it he needed to shim spring to get pressures right. So therefore I am right. Off course if you cut the seats the valve tip will move up, hence needing a shorter pushrod.

@HeadFlowInc

3 жыл бұрын

It’s a Semantics your wording and description was confusing what you were saying. Yes. After you’ve set the valve spring installed height to specification they should all be close to the same +- .005” if possible. The valve tip can easily vary in height based on many variables. JD

@parrot69777

2 жыл бұрын

In a perfect world.... a valve spring shim is used to take up the gap you machine off the valve seat. Many shops use shims to get the correct spring tension which is a bad practice. If you have to do this....then your springs need replaced or the correct springs need to be bought. Machining the valve stems is old technology...mainly used on Ford and Dodge engines as they were all non adjustable valvetrain (LS engines have very little to take off). This is why you should buy new correct length pushrods. All seats should be machined uniformly. Meaning if you have one seat that is .03 lower than all the others they should all be done that way or it should be replaced to match all the others.

I'm on the same boat, getting 1 2/3 turns with 7.425 pushrods ,a horrible sewing machine noise during idle and mid range rpms, going for 7.4 pushrods hopefully i get 1 1/4 turns

@HeadFlowInc

3 жыл бұрын

Airman The best investment was when I spent the $25.00 on the LS adjustable push rod for measuring the push rod length to set the lifter preload. Way easier and accurate as long as you know what lifter preload you need. Also if you have true LS7 lifters you may need 7.450” length as they have a lower pushrod cup depth. JD kzread.info/dash/bejne/dIuLt8mziavFfrA.html

@Airman..

3 жыл бұрын

@@HeadFlowInc definitely it is the way to go sir thank you

I don't understand why the measure varies in each one

@HeadFlowInc

3 жыл бұрын

The length of the pushrod changes the lifter preload. The thread pitch provides a measurable distance based on threads used and rotations of the bolt. Since you’re starting at a zero lash point, the goal on factory lifters is .050-.070” preload. From zero lash it takes +- 3/4 to 1 1/4 turns to get the .050”-.070” preload or there abouts. JD

You should really make a follow up video to this so nobody screws up there ls by adjusting their valves this way. When your on the base circle of the cam, the valve doesn’t open when you torque a non adjustable valve train unless your pushrods are too long, and they make a cheap tool for finding proper pushrod length. It’s called a checking pushrod. Their $15.99. I’m looking at it on summit right now.

@HeadFlowInc

5 жыл бұрын

blake dymond I haven’t watched this in a long time, my point was if the PR is too long, when the lifter pumps up it can hang the valves open. All cams regardless of tappet s should be adjusted with the lifters on the heal or back side of the lobe. Hydraulic, hydraulic roller, Mechanical, or mechanical roller all should be adjusted on the heal. Since this video I purchased an adjustable PR and set my lifter preload to .070”. There are three theories out there on how much lifter preload is better, ranging from .050”, .070” and .100”... 😳. The turns past zero method just isn’t very accurate and has some gray area, lesson learned. JD kzread.info/dash/bejne/dIuLt8mziavFfrA.html

@jasonbeaulieu4979

5 жыл бұрын

thehappyTexan you should buy a dictionary and learn there their they’re

When building you want less reciprocating mass so don’t use shims, just get properly sized pushrods.

@HeadFlowInc

Жыл бұрын

You are apparently not familiar with cylinder head assembly; you set up the valve springs with the intended installed Spring height to establish your seat pressure. You may have to alter the valve spring install hight +-slightly in order to set the desired pressure using shims under the spring, machining the spring pocket or using +- locks. Shims under the springs doesn’t affect the weight of the valve train since they are static. I hope this helps you understand the process better. JD

@teagreen2220

8 ай бұрын

@@HeadFlowInc I wasn’t clear in my comment, you are correct that shims don’t effect reciprocating mass and yes you can use locks that allow for less closed valve spring pressure. I meant you shouldn’t shim the rockers to compensate for pushrods that are too long for the build, just get shorter pushrods if that is what is called for in the build. Thanks for the reply.

Splitting hairs for nothing... cracks me up how guys act like .050 is a live or die situation. 🤣

@HeadFlowInc

Жыл бұрын

Well in reality it can mean the difference between bending pushrods, a noisy valve train or valve train damage. I would agree there is some wiggle room on how long your pushrods can be but there’s one length that’s perfect. Each to their own good luck on your builds.

So... you find the base circle... you put in your pushrod length tool... bolt down the rocker arm... extend the length check to zero lash. Then measure the length checker. Once you have that, you just add the preload you need to that measurement... and order push rods that length. Extremely simple. With stock lifters, you have so much travel you can get away with murder. Better to have it near the bottom of the lifter travel for power

@HeadFlowInc

3 жыл бұрын

Just remember never rotate the engine when using an adjustable PR length tool. Exactly, find PR length at Zero lash then add what ever pre-load you want to find PR total length. You’d be amazed how much recommend pre-load varies based on lifter used and cam grinder. GM says .050”, others say .070” then BTR has recommended.100” 😳😳😳 There’s operating theories both ways on which controls the valve better at high rpm based on the amount of oil trapped under the lifter plunger. JD

Spring shim thickness has nothing to do with lifter preload!!! If the spring is supposed to be used with an installed height of, let's say 1.800", it needs to be set there. Plain and simple. However, you could have 2 valve springs both set at the 1.800 installed height, both with .030" shims, but need 2 different pushrod lengths. Because not every valve stem is exactly the same length, and also the keeper grooves may be ground in slightly different spots. A LOT of things can affect exact pushrod length. Hell, one lifter may have a slightly higher pushrod cup than another....

@HeadFlowInc

Жыл бұрын

I understand you have this need to be judge mental, but slow your roll. One of my valve seats required a .030” cut to clean up damage from a previous machine shop. We decided rather than replace the seat to run it even if it needed a different length PR. When you “sink” a valve it also increases the “stem height” requiring more shim ie .030” to set the valve spring installed height. Changes in stem height affect geometry and pushrod length on an non-adjustable valvetrain.

22lbs and it is done

@HeadFlowInc

5 жыл бұрын

Randall Wyatt If you’re only tightening the rockers it’s ok, not optimal. There’s more to it but that’s ok.

@Ls3guy

5 жыл бұрын

@@HeadFlowInc with a old school small block chevy you would be right but not the ls engine

@HeadFlowInc

5 жыл бұрын

Randall Wyatt You do realize this video is about checking lifter preload? The fact you’re not understanding what the video is about is concerning. Like I said there’s more to it than your limited experience with the LS engines.

@Ls3guy

5 жыл бұрын

@@HeadFlowInc you mean your limited experience not mines

@HeadFlowInc

5 жыл бұрын

Randall Wyatt I hope you’re not saying it’s ok to just throw it together without checking pushrod length? Anyone can look up the torque specs for the rocker bolts. Here’s a list of a few reasons why the PR length changes: Head gasket thickness Brand of lifters Milling the heads Milling/decking the block Aftermarket rocker arms or ratio Camshaft base circle If you’re familiar with all this information,then what would you gain out of arguing a mute point of how you tighten the rocker bolts after you have the proper length? 🤔🤷‍♂️

This video is confusing at best. Sounds like the narrator is at the time of the video learning from instructions off frame. Editing suggest narrator misspoke several times. KZread is flooded with how to videos from people not qualified to give instructions. This is an example of just that.

@HeadFlowInc

3 жыл бұрын

Correct, I tried to research the idea of using thread count or turns after zero lash to determine lifter preload. Because it’s not an exact way to measure lifter preload or needed pushrod length I highly suggest buying an LS adjustable pushrod tool! (I have a video on how to use the tool if you’re bored) The EOIC method for adjusting valves is a long standing way to accurately adjust valves particularly on roller cams due to the lobe designs. I’m not sure what you expected or wanted but I hope you found it somewhere. Thanks for watching and the feedback! JD

Zero turns!!! Get a pushrod length checker!!!!! Dead nuts. Do it right, sleep at night

@HeadFlowInc

Жыл бұрын

kzread.info/dash/bejne/dIuLt8mziavFfrA.html

@HeadFlowInc

Жыл бұрын

There’s more than one way to measure PR length, that’s a fact. I do like using the adjustable PR length checker the best so I can set/adjust the lifter preload. 👍

please nobody follow this example.

@HeadFlowInc

5 жыл бұрын

steve austin No content troller Go get a life! 👍

@steveaustin5897

5 жыл бұрын

At least I can tell when I'm on the base circle. I hope that's your own motor, and not someone else's. HACK!@@HeadFlowInc

@HeadFlowInc

5 жыл бұрын

steve austin Explanation needed, what in the world are you trying to say? 🤷‍♂️

@watchthisusa

3 жыл бұрын

@@steveaustin5897 I'm with you. This guy clearly not qualified to make a how to video on this subject.

1/4 turn past 0 lash ... DONE ✔️ 👍

@HeadFlowInc

Жыл бұрын

No, sir you’re wrong and couldn’t be more wrong. This is not a small block Chevy, LS’s have a nonadjustable valve train bud. 👎👎👎

Why don't you just torque the rockers to 22lbs and be done with it. Who cares how many turned it is.

@HeadFlowInc

4 жыл бұрын

321 It's Done Lifter preload is very important when building the LS engine. When you change head gaskets, cams, lifters or have the heads or block surfaced all these affect the amount of lifter preload. Hopefully this will help you if you’re building and modifying an LS. Note: I found its way easier and more accurate to spend the $25.00 and buy the LS adjustable pushrod to measure and set lifter preload, see video below. Thanks for watching and the feedback I appreciate it! JD kzread.info/dash/bejne/dIuLt8mziavFfrA.html

@321itsdone5

4 жыл бұрын

I have an LS f-body, I do most of my own work but I don't rebuilt engines. If someone didn't do all this and just torqued them all to spec without turning the engine over etc... What would happen? Would it wreck itself immediately?

@dannyrlocklear

4 жыл бұрын

321 It's from my understanding if u don’t have the right pushrod length than u don’t have the right preload on the lifter. So it would probably wear prematurely and be a very noisy. Some manufacturers have different opinions on what that preload should be but using a pushrod length checker would be a must in my opinion.

"The rocker ratio is considered a non-factor as the Pushrod is opposite the Valve on the “short side” of the rocker arm. The lifter preload is a linear change in rocker arm height Vertically." -- Makes zero sense! You can't change the height of your rocker arm post. You can only change your pushrod length, so you need to measure at the pushrod, not at the bolt. 1/1.7=.59, so at the pushrod end it will move 1.59 times of what it moves at the bolt. If it was a 1:1 ratio rocker arm, it would move 2 times at the push rod than what it moves at the bolt.

@HeadFlowInc

5 жыл бұрын

Vito5790 Do a Google search on this topic from other shops building these style engines. You do understand, when I turn the rocker bolt after establishing “zero lash”, it’s compressing the internal valve in the lifter not the valve? The spinning of the push rod only established zero clearance between the rocker cup and the lifter cup, so as i tighten the bolt the “lifter preload is established”. The one odd ball valve used a shorter push rod. The engine runs super quiet when cold but in my opinion the rockers are a tad noisy when heat soaked. But I do have the solid trunnions upgrade in the rockers which I’ve read tend to be a tad noisy. 🤔

@Vito5790

5 жыл бұрын

@@HeadFlowInc Do you not understand simple geometry? What I'm saying is that you preloaded the lifter more than you thought. Precisely 1.59 (notice i didn't say 1.7) times more because you measure at the bolt by measuring how many turns. Also i don't care what other shops do. I only care about what the manufacturer of these components recommend. And they provide a tool to measure your zero lash length and then simply add to that length the amount of preload you need

@Vito5790

5 жыл бұрын

@@HeadFlowInc next time you do this put a dial indicator on the rod end and you'll see what I'm talking about

@HeadFlowInc

5 жыл бұрын

Vito5790 I’m going to make a video on this topic. There’s too many different theories, I want to show 100% what’s going on. Let’s say I thought I had .065” preload using my method, by multiplying.065” x 1.59= .10335” 🤔. I’m not sure this math holds up.

@Vito5790

5 жыл бұрын

@@HeadFlowInc before you do that, you should learn how levers work. If one end is stationary, and you move it in the middle, the opposite end moves two times of what you moved it in the middle. In this case you're not moving it in the middle, but slightly closer to the opposite end, so it moves 1.59 times instead of 2 times.

HINT!!!! ALWAYS check pushrod length BEFORE you order new pushrods!!!! DUHHH!!!

@HeadFlowInc

Жыл бұрын

I already had the 7.400” so not a big deal if I need to buy a different set. At the time I had my dealer account; new set of .080” wall chromoly was $60.00. 👍

Worst editing ever. Constantly cuts himself off.

@HeadFlowInc

4 жыл бұрын

daniel archer I agree, I get more complaints about talking too much than not enough! So basically I end up trying to piece together several clips. Sometimes it works out sometimes it doesn’t. Clearly I should have done a better job reviewing the final video. Thanks for watching and the feedback I appreciate it! JD Use this method, it’s way better! kzread.info/dash/bejne/dIuLt8mziavFfrA.html

That's not the right way to torque a bolt. You should not stop turning it and starting over like that. Once you start pulling, you continue to until you reach the torque spec. If you torque bolts such as head bolts in two stages, it's the same deal. Pull to the first preset ft/lbs. then do the same with the final pull...... Also that .030 spring shim you needed on the exhaust has absolutely nothing to do with the pre-load coming out different. Think about it..... that doesn't affect the installed height of the valve, it only affects the spring. It's the difference in installed heights of the valve itself that's causing the difference in pre-load. The spring has nothing to do with it.....The fact that the other exhaust valve's pre-load came out OK is just luck. When you do a valve job, part of it is setting the installed heights equal. If you ever worked on engines with shim and bucket lash arrangement you'd learn real quick how much that matters.

@HeadFlowInc

6 жыл бұрын

Larry Cavanaugh Your optimism is interesting, when you work on cars you’ll find out you don’t always have room to “Continue” to the torque spec in one non-stop pull. That’s not realistic. Constant & continuous pressure is how I pull to torque. If I go back over something in a video that’s just to show a fastener has been torqued.

@shadowopsairman1583

Жыл бұрын

Different style torque wrenches.