I'm not a mechanic but that's about as clear as any professional could have given that thank you I appreciate your time

@MotorCityMechanic

5 жыл бұрын

Many thanks for that awesome feedback! Make sure to subscribe if you havent already.

I like how even when he was right to begin he still explained thoroughly how he could be wrong that’s mad respectable

@MotorCityMechanic

11 ай бұрын

Thanks for the feedback….it’s always appreciated and welcomed

Outstanding explanation, I think you covered everything, and I don’t see a need in recreating the other video that you are contemplating a redo on.

@MotorCityMechanic

5 жыл бұрын

Appreciate the comment Jeremy! Thanks for the feedback as well.

I have nothing to do with cars or engines but your video and analysis was brilliant David

@MotorCityMechanic

5 жыл бұрын

Many thanks. Anyone can pretty much take these repairs on with some direction and a few tools. I appreciate you still stopping by and for watching the videos. Make sure to subscribe and click that bell icon as well.

Another case of the engineers saying; "That's not supposed to happen."

@MotorCityMechanic

5 жыл бұрын

Very true

I like the moral of this story. Never believe what you read but to check it yourself instead.

@MotorCityMechanic

5 жыл бұрын

Very true! Thanks for watching and for commenting. Make sure to subscribe.

Came to learn the difference between interference and non interference engines and felt like I am leaving with so much more . This is an incredibly underrated channel and I really hope you get the views you deserve sooner more than later! thank you! like and subbed.

@MotorCityMechanic

2 жыл бұрын

Thanks for the kind words

well done -- we need more mechanics like you

@MotorCityMechanic

3 жыл бұрын

Many thanks for those very kind words!

it's great when a non engineer can question what's written on the book. GREAT WORK!!

@MotorCityMechanic

5 жыл бұрын

Thanks for commenting and for watching Ricardo! Make sure to subscribe.

"Never assume" has served me well in my 58 years. Always learning thanks brother!

@MotorCityMechanic

2 жыл бұрын

I fully agree…I learn something new almost everyday when working on these vehicles

Man, we all learn something new eventually. I been wrenching on cars my entire life, and stilllearn new things from time to time. You are good mechanic.

Dude, thank you!! This video helped me, a NOVICE at BEST, more than any input I've gotten from multiple mechanic buddies of mine over the last few weeks.. You are the friggin man!!! I'm so stoked, thanks again, bro. Keep rockin', Legend!

David, always a pleasure to see you upload a video! I hope this means we get to see a head rebuild video soon 😏

@MotorCityMechanic

5 жыл бұрын

Looks like it lol. Eventually when I can find the time and work it in. Waiting on a few more parts and then I should be good to go.

I have been following this series, This video just made me subscribe. Excellent job!

@MotorCityMechanic

5 жыл бұрын

Many thanks Man! Both for watching and for subscribing.

Thank you David. Good job. I appreciate your videos. Have a blessed and safe week.

@MotorCityMechanic

5 жыл бұрын

Many thanks Billy! You do the same!

Wonderful job! I love this. I keep promoting your video on the facebook PT forums. Too many people want to drive it until it breaks because it is "non-interference". They're so wrong.

@jamesworsham2312

Жыл бұрын

It don't matter if it's interference or non-interference. When you're getting down the road at 60 70 80 mph and the belt or the chain comes loose something is bound to smack they're not like the old engines back in the day. These engines have no tolerance for mistake hopefully you will not learn that the hard way on your own vehicle

Good stuff! Always appreciate your help, which is always spot on!

@MotorCityMechanic

5 жыл бұрын

Thanks for joining in on the premier! Much appreciated

Nice work, I agree that if you have a problem with something that you should check it out for yourself and see what the problem is and why it is happening, and seeing it with your own eyes is priceless as far as solving the issue. I also like how you did not have a problem with admitting you may or may not have been correct and explained it, too many people would just sweep it under the rug or blame somebody or something else and hope nobody says anything, and move onto something else. Subbed

@MotorCityMechanic

5 жыл бұрын

Many thanks for subscribing and for checking the video out. I am one of those people that like to see it for myself. For one its easier for me to grasp. I can admit that I am not perfect for sure and there is always room for learning and for improvement on my end. I certainly havent seen it all and each day I come across at least one thing I was wrong about or that I didnt know. Thanks again for watching!

Excellent video. Thanks for putting such great content out. Keep the Pentastar 3.6L videos coming! 🤘🏽

@MotorCityMechanic

5 жыл бұрын

Thanks for watching all the videos and for commenting. I will make sure to mix a few in there from time to time

Thanks for a thorough discussion.

@MotorCityMechanic

5 жыл бұрын

Your welcome. Thanks for watching!

I have NEVER heard of valve to valve interference until this video. It makes sense now but I think in this specific case you're correct. There is just no way they hit each other unless the lash is WAY out of spec. So far out that the valve can't completely close; or put another way, NO LASH AT ALL. Which would cause problems way before the belt breaks.

The coments about my engine (93 Ford Ranger 2.3) being non interference on another video brought me here and I learned something new plus Im glad mine is a none Interference. Thanks, great video and subscribed.

@MotorCityMechanic

4 жыл бұрын

Many thanks. Always glad to see people watching my videos and glad that they find them helpful. I appreciate the subscribe as well!

Excellent video. Your honesty and self-accountability is to be admired. Never assume. Test, test, test!

Great stuff. I hope your channel starts getting the views it deserves. Your videos are as thorough as I've seen regarding automotive repairs.

@MotorCityMechanic

5 жыл бұрын

Many many thanks. Growth is always welcome. I seemed to be toooo laser focused to the brand that I know that it limits who comes to the channel. Appreciate the kind words and the support. Merry Christmas

@CTSCAPER

5 жыл бұрын

@@MotorCityMechanic I was going to ask if you're jealous of guys who work on Hondas and Toyotas in a playful way. I'm sure as a mechanic their all the same with minor differences.

@MotorCityMechanic

5 жыл бұрын

No brand is perfect and each has its common issues. I hear more from previous Ford techs about all their issues then any other. I’m mainly just brain washed with the brand I have worked on for 30 years

@CTSCAPER

5 жыл бұрын

@@MotorCityMechanic That makes sense. I guess you know what to look for first when something goes wrong with a Chrysler. Keep up the great videos!

@MotorCityMechanic

5 жыл бұрын

@@CTSCAPER 30 years lol.....I meant 20. Most times I know where to jump to first when checking them out. Thats one reason I prefer working at the dealership.

This is an outstanding video, and part of an outstanding series, that resolved a long standing question about the 2.4 liter twin cam. You did a great job of forensic engineering, that never would have been needed if those diploma engineers had properly insisted on exhaust valve reliefs at the tops of the piston crowns. That would have only reduced the compression about one, or at most two, percent and saved a lot of trouble for a lot of people. Thanks again.

@davidtigert4842

4 жыл бұрын

MAny companies are installing 4 valves for each cylinder. You only need 2 valves per cylinder. 1 intake @ 1 exhaust. You are asking for trouble with 4.

@davidtigert4842

4 жыл бұрын

1 Cam @ 2 valves per cylinder. The old slant six cylinder would go a long way.

Wow! You have explained this in such good detail with actual real life examples.

@MotorCityMechanic

4 жыл бұрын

Many thanks. I like to include as much as I can from time to time....sometimes I dont have whats needed on hand but when I do I try to add it. I appreciate the kind words and feedback. Make sure to subscribe.

Awesome brother! Just bought a base PT and you will be my go to guy on these 2.4L engines. 👍

Very interesting. Thank you for sharing, David.

probably the clearest and most technically superb video Ive seen on this issue.

From all the videos out there you are the best.

@MotorCityMechanic

5 жыл бұрын

Many thanks! I appreciate the kind words. Make sure to subscribe if you havent already.

Thanks for this awesome vid, David. Super helpful and informative. Keep it up!

This is what confused me to no end. Thank you for clarifying this. Off to the machine shop I go.

Again a great video. Technicians such as you are Golden.

@MotorCityMechanic

5 жыл бұрын

Thanks Terry. The kind words are appreciated

...WOW !!! ...I like the way you explained the difference between the two !!! ... Keep on sharing, you are awesome instructor ;) ;) ;) ....From state of Florida

@MotorCityMechanic

5 жыл бұрын

Many thanks Ben for the kind words! Make sure to subscribe if you havent already

Wishing you was my neighbor!!! Love your videos and if your looking for ideas on video content, 3rd gen 6.7 Cummins seems to be popular lol take care David and have yourself a very merry Christmas!!!

@MotorCityMechanic

5 жыл бұрын

Many thanks man! I will certainly keep that in mind. Merry Christmas to you and yours as well!

From the title, was expecting an explanation for non-interference engine instead of discussion of this particular Chrysler engine whether its non-interference engine or not... But either way, this video gave bit more extra information.

@MotorCityMechanic

5 жыл бұрын

Thanks for watching and for the feedback. Its much appreciated

@dedanieldd

5 жыл бұрын

@@MotorCityMechanic 👍

Great video man this taught me a lot

Your videos are great on the PT I have a 2004 with 202,680 miles on it

@MotorCityMechanic

5 жыл бұрын

Thanks man! The feedback is greatly appreciated

Excellent video! Thanks for the explanation.

Great job Sir Motor !

@MotorCityMechanic

3 жыл бұрын

Thanks Paul! Make sure to subscribe.

Very good breakdown and analysis. Definitely subscribing. You helped me out tremendously.

@gabegarcia1199

3 жыл бұрын

Food 4 thought. Instead of redo video why not just delete it to avoid investing more time into a topic that the haters will always use as ammo.

@MotorCityMechanic

3 жыл бұрын

Thanks Gabe....glad to hear that you enjoyed it. Make sure to subscribe

Great video thanks for the help!

As the original owner of a 1989 Dodge Spirit ES turbo car AND the factory issued shop manual for the car, I can tell you from my own wrenching experience over all these years, a corporation can and sometimes does make mistakes in their printed literature about their own product. It's not often, but it does happen. BTW, the 2.5L SOHC engine in the Spirit is virtually all original except for 5 head gaskets, one timing belt, and a valve grind. Over 300K miles now. Love your channel David. Hope you keep it going for many more years.

Really nice to watch a video by someone who knows their stuff vs some of these videos out there where they just want to show off all their snap on tools. I admire the detail you put in you work. Question: Are you mostly self taught and always just loved working on cars or did you go through a lot of training to get where you are ? Again, great videos David !

@MotorCityMechanic

5 жыл бұрын

Thanks for understanding my process. I have been at the same dealer for going on 21 years now.....I like to think I am mechanically inclined and like most of you....just need the info for me to do the repair. Much like fixing the washer or dryer at the house or the a/c unit or even the plasma TV. If I have the info....I can take the task on. Its all bout finding the knowledge from somewhere. I have worked on cars one way or another since I was 16 so its pretty much my life I guess.....I wouldnt say that I love it, its more of a saving money and fixing it myself thing. I never run outside happy to work on anything lol. I like the money and I can do this job so it works well together lol. Thanks for reaching out and make sure to subscribe Ron if you havent already

Got em. Good shit bro. I love it. Real work

@MotorCityMechanic

4 жыл бұрын

Many thanks Corey. make sure to subscribe and enjoy the weekend.

That was great information. Thank you so much. Keep it up sir. Very well explained.

@MotorCityMechanic

4 жыл бұрын

Thanks Brett! I appreciate you watching and for taking the time to comment. Dont forget to subscribe.

Another GREAT video, and great information.

@MotorCityMechanic

3 жыл бұрын

Thanks John! I appreciate you checking out these videos. Make sure to subscribe if you havent already

Great video!

@MotorCityMechanic

5 жыл бұрын

Thanks Russel!

This was really well done. Much obliged.

Outstanding explanation! God bless America🇺🇸

Superbly done video.

awesome vid bro . you confirmed for me what i thought. cheers man. you rock.

@MotorCityMechanic

4 жыл бұрын

Thanks Darryl. Make sure to subscribe.

Tanks for this video I have this problem for long time diesel drips damage started I start tomorrow to fixed my truck tanks

Good explanation Sir. I learned that VWs and Nissan motors are interfering engine. That is why it is important to Install a New Serpentine belt at about 60 thousand miles as a preventable measure. I would never own a interfering engine especially after learning all the different ways this event can happen. Thanks for Educating the Serious DIY's...👍👍

Well done video. Thank you.

Great video great advice

Another great video David. Love the content. How many times I've read incorrectly printed technical information Chrysler....I have lost count.

@MotorCityMechanic

5 жыл бұрын

Thanks Timothy! Appreciate it man,

Thank you EXCELLENT explana tion!!

@MotorCityMechanic

2 жыл бұрын

Thanks a lot Fred!

very interesting subject, great video.

Great information and descriptive learning Dave. Valve to valve contact was a prominent issue in early multi valve overhead cam diesel engines with primate electronic injection, where the early belts or chains failed, especially in Australia where extreme heat, multi trailer combos are prominent. In all engines failures I've diagnosed with this description, the valves had not touched the pistons, due to the volumetic concaved pistons (increased volumetric area), but had edge contact with the opposing bank, resulting in major valve head degregation, from chips to complete severance. Other diagnosis of terminal failure include exhaust valve failure due to Jake Brake failing to release after disengagement, Hobbs switched fans causing belts/chains to jump a notch when engaging due to failure of soft start mechanism affecting cam timing, early ECU failures, most notably on Euro trucks with primitive VVT, losing sensor activity, suddenly engaging limp home without warning, and regarding the timing without confirmation of either cam / valve positioning. Add the failure of belts due to atmosphere and mechanical exposure, and overstressed timing chains, and you have very expensive repairs as the engines were usually destroyed by shrapnel from valves and / or disintegrating turbo turbines. Oh....one funny issue seemingly encountered on industrial Detroit diesels was the engines would fall out of timing without warning for no obvious reason but never damaged valves. When the heads were removed exposing the combustion chamber, the valves, usually inlet, had caught the edge of the exhaust valve, rendering retraction impossible. 👍👍

Another Great video. I believe you, more than Chrysler. Thanks David.

@MotorCityMechanic

4 жыл бұрын

Many thanks for watching and for having faith in me.

perfect explaination sir.... YOU DA MAN!

@MotorCityMechanic

4 жыл бұрын

Many thanks! I appreciate the comment and feedback. Make sure to subscribe and try to enjoy the weekend.

Good explanation , thanks.

@MotorCityMechanic

5 жыл бұрын

Your welcome and thanks for watching

thank you for the info nice job explaining it i just had a volvo engine interferance type and the water pump seized and the belt jumped and i cranked the engine becuse i was on a set of RR tracks with a train heading toward me when i pulled the head i had valve to piston contac and you could see the damage valves not seating but it only cost me bout 5 benjamins did the removal and replacement and had a machine shop mill the head and do a complete valve job well worth the money and i enjoyed doing it thanks again for sharing info

@MotorCityMechanic

4 жыл бұрын

When you do it yourself you save alot of money. I like doing jobs like these when I have no time limits and not in a rush for sure. Thanks for telling me your story and for watching my video. Make sure to subscribe.

Excellent.

@MotorCityMechanic

4 жыл бұрын

Many thanks! Dont forget to subscribe if you havent already.

U the man

Excellent video David. I hope Chrysler watches these.

@ryotaryuu

5 жыл бұрын

As long as these engines were in use you would think they would have figured it out by now.

@MotorCityMechanic

5 жыл бұрын

Thanks man.....appreciate the comment and for you watching!

You are a very owhnest and professional clever Mechanic

Thank you.

@MotorCityMechanic

5 жыл бұрын

Your welcome Heather! Make sure to subscribe.

I really find it astounding that Chrysler's service bulletin was wrong on this issue. That's a fundamentally gross error. You're not wrong to believe mostly all of the service bulletins, notices, etc. that are released by the major auto manufacturers. Errors are rare, yet they do happen. Step by step analysis is still your best tool. I enjoy your videos and your teaching style. Thorough without boring this old shade tree mechanic. Keep up the good work.

@MotorCityMechanic

5 жыл бұрын

Many thanks Don! Appreciate the comment and for your time spent watching

@djr3485

5 жыл бұрын

Errors are unfortunately rather common in automotive service publications because they are written by engineers who rely too much on theoretical and inflexible modes of knowledge. In reality, common sense and experience are often far better guides when dealing with mechanical realities than a whole lot of gobbledegook aimed at addressing endless possibilities.

Thanks. Those dents in the piston almost look like they fit the bottom side (radius) of the exhaust valve head, more perfectly than the top side like you demonstrated. As you showed, the leak down test told the story. When you found the factory cam alignment holes were off, I personally would have been tempted to loosen the exhaust cam sprocket bolt, align the cams using the factory alignment holes, retorque the exhaust sprocket bolt do the leak down test and then see if the engine would then start/run. Regardless, once you found the exhaust valves were leaking, you knew you were going to have to pull the head to fix all that was wrong (and do some preventative repairs while you were in there). You are obviously a very good technician and teacher, thanks for making the videos!!! It's an Excellent series, I've shared them with my son and brother that own PT's.

Great video and info

@MotorCityMechanic

5 жыл бұрын

Thanks man....glad to see your still a subscriber....I will try to work on those daily videos lol. Till wednesday lol

@randallcheek9308

5 жыл бұрын

@@MotorCityMechanic lol. Funny. David. Always a subscriber 4 life

Well done in your explanation,plus its the first vid ever i saw pass 300 without a dislike lol

@MotorCityMechanic

5 жыл бұрын

I am surprised as well about the no thumbs downs......I know that now that I said that they will start showing up lol. Thanks for watching and Merry Christmas!

Thank you sir.

@MotorCityMechanic

5 жыл бұрын

Your welcome! Dont forget to subscribe.

Great video! As an owner of two Chrysler vehicles with the 2.4, this is very useful info. I changed the belt on both mine at the suggested interval, and now I can see that I am glad I did. The exhaust valves did come into contact with the piston. Did you have to replace the piston in this case? Is this discussed in a later video?

@MotorCityMechanic

5 жыл бұрын

Piston was okay and I didnt seen the need. No issues with it running lol. If the belt breaks your okay....its just when someone times it up wrong or does something like in my case with the cam shaft alignment pin. Thanks for watching Kirk and for the comments.

Really good series of Chrysler PT videos! Have you ever finished repairing the PT?

@MotorCityMechanic

5 жыл бұрын

Many thanks. I havent yet....so much other stuff going on, I need to put out a few other videos first and then get back to the valve replacement and then see if it turned out well.

I WAS VERY IMPRRESED AND IM LeaRNING Lot fromt tgat video good jpb keep up the good work

Stumbled upon this video because I wanted to know about interference engines (I'm still not sure if my 2004 Toyota Camry V6 is interference or non-interference, I keep getting conflicting info) and you helped explain to me what that concept means. You made it easy to understand even from a non-gearhead's point of view. This also goes to show why Chrysler gets its reputation as it does - it just seems like "good engineering" wasn't a term in design. They make slick looking cars but they always have these strange faults. A non-interference engine but the valves can still smash into each other, but they're wrong about it? Might as well just should've just added "Yeah, we're stupid" at the end of that service manual blurb.

I love this video

@MotorCityMechanic

5 жыл бұрын

Much appeciated! Thanks for watching and for the feedback. Make sure to subscribe.

Awesome video brotha 👍🏻 I'm surprised in all your years of wrenching you've never heard about valve to valve contact possiblitys, we learn something new everyday right. But anyway my question is have you thought about notifying Chrysler of your findings of this situation? I wouldn't be surprised if they wanted to hire you on as an engine designer (for real) you definitely know your shit. I've been a mechanic at a Chrysler/Plymouth/Jeep dealership for 13 years so I can tell you got skills 🔧

@MotorCityMechanic

4 жыл бұрын

To be honest I never even thought about the valves either. Just over looked it I suppose. I appreciate the kind words coming from a fellow tech....means alot.

Thanks

Great video 👀🥂👍 . Certainly looks like my 2005 pt is junk after belt broke .

good video..

@MotorCityMechanic

4 жыл бұрын

Appreciate it Ray! Thanks for the comment and make sure to subscribe.

I have an '04 PT GT (Turbo HO). I have seen conflicting info on this topic and have wondered if it was an interference engine or not. Now I know, thinks. Great videos!!! In caution I replace the timing belt at 75k.

My friend had PT cruiser i warned him about changing the timing belt but it broke and the exhaust valves were badly damaged the pistons hit the exhaust valves

@MotorCityMechanic

5 жыл бұрын

Thanks Patrick.....appreciate that comment. Timing belts are important to stay on top of as far as changing them when needed.

Now I'm worried! My '06 Cruiser has a broken belt and I was hoping to NOT have to remove the head. At least now I'll do some thorough checking before I button it all back together. THANKS for another excellent video! KUDOS again to you!!!

@MotorCityMechanic

5 жыл бұрын

I havent seen one bend the valves when the belt broke, mainly when someone did something wrong like on this vehicle. I feel you will be fine. Thanks for watching and for the question. Merry Christmas Tom!

@tomferguson4996

5 жыл бұрын

@@MotorCityMechanic yep, Ive been thinking about that too. Those witness marks on the pistons look more like over-revving to me. Think that's possible? If you've already repaired it what did you find? Were the valves only slightly bent? Just curious. Thanks! Tom

@MotorCityMechanic

5 жыл бұрын

@@tomferguson4996 It appears only slightly bent. I have a new set of exhaust valves that I need to get around to installing when ever I get some free time.

That was super clear!! It is an interference engine. Congrats on the twins!! On 2016 T&C, would u take the door off when changing door lock actuator, or would u fight it with the door on? Thank u David!!

@MotorCityMechanic

5 жыл бұрын

Many thanks Bill. Taking that door off is the best method. We use those fender stands that they sell at harbor freight to lay the door flat on.

David, Have you ever heard of a 97 3.5L break a timing belt and not have bent valves? My belt broke while idling at a stoplight ,now worried my intrepid is junk. Excellent video ! Had to subscribe to your channel!

@MotorCityMechanic

5 жыл бұрын

On the older 3.5 you should be fine. We replaced them all the time back then with locked up waterpumps and broken belts. Over time the newer versions of that engine would bend valves.

Thank you!! Perfect!!!

Was the valve spring for the affected valve weak or damaged? I can see one letting the cam fling the valve further than intended, the intake valve catching it, and pushing it down into the piston. Having that happen to two parallel exhaust valves at the same time would be incredibly unlikely, though.

Great stuff.. David thank you You definitely have nailed it But my question which type is a majority..? What's the percentage of interference & non-interference? And which one is main stream production today and in the past. ?

David, What is a reliable resource to determine whether you have an interference or non interference engine? I have a 2008 and a 2009 both 2.4L Dodge Avenger and 2017 Chrysler Pacifica 3.6L. Thank you for your time and effort. Merry Christmas

These videos are awesome. Is it possible that resurfacing of the head reduced the clearance enough to allow the exhaust valves to interfere with the piston?

@MotorCityMechanic

4 жыл бұрын

On some vehicles it sure can.....plus you might not know that it was shaved already before and not its getting done again. I would assume a machine shop would be able to tell if it has. Thanks for the question and make sure to subscribe.

Cylinder head and engine block surface prep video would be appreciated. Thanks

@MotorCityMechanic

5 жыл бұрын

Good idea.....its very possible. Thanks for the request and for watching

Great video Sir. I appreciate this. May I ask if a Ford pinto has a non interference engine??

@MotorCityMechanic

4 жыл бұрын

Morning, wish I could tell you but I dont know. Its not a vehicle that I have ever worked on. My parents had one when I was a kid, thats about all I know about them.

u the man greatest ever

@MotorCityMechanic

4 жыл бұрын

Many thanks for watching and for the comment. Make sure to subscribe.

And the reason I came across your video is because I was looking to see if a 1995 Honda 1.8 engine is a "clearance" or "interference" engine. Would you happen to know? I recall there was a list of all engines listing the ones that hit and the ones that don't hit when the timing belt/chain breaks but I can't locate it :( Thank you for your time making these videos it is much appreciated 👍🏻

@MotorCityMechanic

4 жыл бұрын

Morning. I havent ever worked on a Honda so I dont know for sure. I dont trust what is written as you saw in the video. I good Honda tech would know for sure but I dont know of any. Guess I am of no real help when it comes to that vehicle. Thanks for watching and for following the channel.

Great explanation Dave. Like you, Chrysler made it more difficult to understand and we all learned something about valve to valve vs valve to piston clearance.

@MotorCityMechanic

5 жыл бұрын

Thanks Wyatt! I learn something everyday so I learn with all of you watching.

Cool

@MotorCityMechanic

5 жыл бұрын

Appreciate you watching Timothy!

Congrats on the little ones. Spend your time with them. In addition to Sargtester99 coment. Could there have been the possibility that one or both of the hydraulic lifters could have been bled down and not allowing the valves to open to their full extent? Just a thought and outside possibility. Keep up the great videos. Hope the little ones have their sleep schedule correct.

@MotorCityMechanic

5 жыл бұрын

They have started sleeping longer and I am thankful lol. Anything is possible. They didnt see to bleed off but it was a quick check....if I hadnt seen the nice impact marks on the pistons I would have focused more on the valve to valve issue.