The information I shared on where the compression could be leaking from a cylinder is pretty standard on what you'll find when searching this topic. Most people will say that if you hear air escaping into the crankcase, it's most likely piston rings. But, that might not necessarily be the case from what I just learned. Most people have heard if it's a bad head gasket, you either get coolant mixing into the oil and you end up with oil looking milky or the compression is leaking into the coolant passage and you'll see bubbles rising to the top of the radiator. But, there's a lot more ways a head gasket can fail so I thought I'd share this article: haynes.com/en-us/tips-tutorials/7-different-ways-head-gasket-can-fail This has me thinking that's it's not an absolute when you hear air escaping into the crankcase like we had with Rey's engine that it's necessarily an issue with the piston rings. The compression could be leaking between the cylinder and the oil galleries which would also push air into the crankcase. If it is just a bad head gasket, his engine might simply be fixed with a head gasket replacement. At first we were thinking engine replacement because it didn't seem worth all the time and labor to remove the #1 cylinder piston and try to address the bad piston rings. Rey still might go for the engine swap anyway but we will have to discuss this further with this new information I've learned.

@weijia8088

2 жыл бұрын

So is there a more definitive way to figure out whether it's the rings or gasket?

@TimmyTheToolman

2 жыл бұрын

@@weijia8088 We could perform a "Wet Test" of the bad cylinder to help confirm or rule out the piston rings as the issue. You pour a small amount of engine oil into the spark plug tube and into the cylinder and then you redo the compression test. If the compression number improves by quite a bit, that's a sign it is a piston ring problem because the oil helps the rings make a better seal with the cylinder wall. If the compression number doesn't improve, it's most likely the head gasket is the issue. But, there's also a chance that there's a loss from two areas, the piston rings and the head gasket. It seems pretty clear if you hear air at the throttle body, you have an intake valve or seat problem. If you hear air at the exhaust, it's also fairly clear you have an exhaust valve or seat problem. if you have bubbles coming up in your radiator, that's a clear case of a head gasket failure. But, it appears air getting into the crankcase is harder to pin down 100% where the problem is.

Honestly, the best leak down test video I've ever seen. Everything was explained so well!

@TimmyTheToolman

2 жыл бұрын

Thanks Sean. We really appreciate your very nice compliment.

This is one of the best Toyota diy channels out there. ! Thanks I’m hoping I have to do this to my 2ufze I have 2-4-6 misfire after wife over heated if on a errand.

@TimmyTheToolman

2 жыл бұрын

Thank you for the very nice compliment of our channel. We truly appreciate it! Good luck with figuring out the issue with your 2UZ engine. Let us know how it goes. Happy Wrenching!

Good tutorial Timmy 👍👌 Excelente video as always.

@TimmyTheToolman

2 жыл бұрын

Thanks Bro. I appreciate it!

Great Chanel with a wealth of mechanical information on yotas great job Timmy 👍

@TimmyTheToolman

2 жыл бұрын

Glad you like our channel. Thanks for compliment. We appreciate it.

Such a great video from start to finish. Every new 80 owner needs to watch it. Looking forward to your future videos. Cheers from Guam.

@TimmyTheToolman

2 жыл бұрын

Thank you my Guam Toyota Brother! We appreciate the compliment. We will have more videos for sure on the 80 Series. Happy Wrenching!

Nice work Timmy. 👍👏

@TimmyTheToolman

2 жыл бұрын

Thanks Arin.

Hello! From your newest subscriber and fan. Although this particular content (Luckily) isn't needed on my 95 T100 - I still enjoyed and learned a bunch. Thanks for what you do! Cheers!

@TimmyTheToolman

2 жыл бұрын

Thanks MIke and you're very welcome.

Great stuff as usual. Getting ready to do this on my new project car 🍺👍 Thanks for this one 🤘

@TimmyTheToolman

2 жыл бұрын

Thanks Bro. What project car did you purchase?

@WeekendWrenchTurner

2 жыл бұрын

@@TimmyTheToolman I've got a '66 Rambler American that I'm working on restoring 👍👍

@TimmyTheToolman

2 жыл бұрын

@@WeekendWrenchTurner That's rad.

This was very informative and helpful. Hopefully none of us with FZJ80s will ever have to use this information. But very eye opening to learn the diagnosis process.

@TimmyTheToolman

2 жыл бұрын

We agree, that’s why it’s important to check your rig before leaving for trips so you can catch small things. The belt on this rig was super loose, then broke, causing the fan to stop moving, which in term caused the engine to overheat🙃

This is a very good video. I just received my leak down test kit, and am preparing to perform the test on my 85 FJ60 with a 2F engine... I'll also be performing on my 78 FJ40 with the same engine. I was confused by the fact that during your test you didn't mention that you moved all cylinders to TDC as you moved back to #6. After watching I had the impression that I would leave #1 at TDC and test all the other cylinders. Further research corrected my error. Might consider mentioning that on your next video on a leak down test. Over-all Great video that explained the process in further detail that I knew before watching. Thank you George

@TimmyTheToolman

Жыл бұрын

Glad you like the video George. I guess it would have been a good idea to mention each cylinder needs to be at TDC to properly do the leak down test but we figured that was self-explanatory. We try our best to be very detailed and descriptive with our videos but sometimes we make assumptions and those assumptions are wrong. Thanks for the comment George. Happy Wrenching!

This may be a little late… but I had the exact same issue on my 1FZFE engine. I had stuck piston rings on one of the pistons. I was able to free the stuck ring by letting some oil sit on top of the piston and run back down into the crank case. After doing that a few times and letting it sit, compression came back and matched all the other cylinders. Also noticed a power increase obviously.

@TimmyTheToolman

3 ай бұрын

That's great you got the compression back on your cylinder. Thanks for sharing this with us.

Tim Great video! You are an asset to KZread! Question, instead of replacing the engine could you just replace the rings? Thanks.

@TimmyTheToolman

2 жыл бұрын

You could just replace the rings but that basically means you would be tearing apart the lower end of the engine, and at that point, you may as well rebuild the whole thing because it's a lot of work. What i learned after this video though is head gaskets don't always end up with compression leaking into a coolant jacket. They can fail in many ways. One is the gasket fails between an oil gallery and the cylinder which could mimmic bad piston rings because you would also hear the air escaping into the crankcase. So, it might not be bad piston rings after all like I thought. I learned these engines when they have a head gasket failure usually have it happen in the very front on the #1 cylinder or the very back on the #6 cylinder. We probably are going to pull the head and try fixing Rey's engine with a head gasket replacement job. It won't be anytime soon but we will most likely shoot this video. Check out the comment I pinned. It has a link to a site talking about all the different ways head gaskets can fail.

Very informative video! One thing you didn't show us was the spark plug in that the #1 cylinder, wouldn't an oil fouled tip further confirm that the piston ring was damaged?

@TimmyTheToolman

2 жыл бұрын

Good point. The spark plug did look OK though. After this video I did learn a head gasket can fail between the cylinder and an oil gallery so it might not be bad piston rings but a bad head gasket.

Misfire after overheating, but it's not losing coolant so is a bit puzzling. Maybe you could do a video on taking the cylinder head off?

@TimmyTheToolman

2 жыл бұрын

It overheated because of the alternator belt coming off and wrapping around the fan clutch. We talked about this in the video we shot replacing Rey's radiator. Head gaskets from what I learned don't always end up with the engine eating coolant. They can fail in many ways. One is the gasket fails between an oil gallery and the cylinder which could mimmic bad piston rings because you would also hear the air escaping into the crankcase. So, we probably are going to pull the head and try fixing Rey's engine with a head gasket replacement job. It won't be anytime soon but we will most likely shoot this video.

Thanks very informative video, i have a question how many miles does that engine have ?

@TimmyTheToolman

2 жыл бұрын

You're welcome. Rey has 235,000 miles on his 1FZ engine.

Hi Tim , Did you have any research for 5Th Gen T4R Full Time 4WD ,Tundra brake upgrade with 13WE or 13WL..

@TimmyTheToolman

2 жыл бұрын

The Tundra Brake Upgrade as fast as I know only works for 3rd Gen 4runners and 1st Gen Tacomas. I don't know of a brake upgrade for 5th Gens.

I just did a motor swap on my 80 series I wish I had your motor swap video a few months ago.

@TimmyTheToolman

2 жыл бұрын

We'll eventually do the swap but it's not going to be very soon. That project will most likely be months out. It's going to take a while to get the engine we want for the swap.

Can you use blue gloves and a rubber band to see if air is escaping in some spots? If it tries to fill, air is escaping.

@TimmyTheToolman

2 жыл бұрын

I don't think that would work so well. You really listening for a air in those areas. I don't know if you actually fill up a glove with the lost air because we are talking about large areas the air is going into. But, maybe I'm wrong and it could work.

Siiiiiiiiiiiiiccccccckkkkk mooooodddds maaan!!!!!😁👍

@TimmyTheToolman

2 жыл бұрын

The Sicker the Better!

Hey Tim. sorry to hi jack this video a little but i was wondering which repair manual you use for your 3rd gen 4runner vids? thanks in advance

@TimmyTheToolman

2 жыл бұрын

Hey Matt, I use a Toyota FSM. You can find them for sale on Ebay usually. Just do a search for your year like "1999 Toyota 4runner Factory Service Manual".

@matthewfurlotte1316

2 жыл бұрын

@@TimmyTheToolman you are the man dude. i cant express how grateful i am to see those videos on the 3rd gen stuff. thank you!

@TimmyTheToolman

2 жыл бұрын

@@matthewfurlotte1316 Thsnks Matt and you're very welcome. Have fun wrenching on your rig.

Timmy.... It's Timmy..... Hey I'm wrapping up my 1fz complete refresh and my dealer is telling me there's no valve shims available you got any suggestions?

@TimmyTheToolman

2 жыл бұрын

That seems weird. Check with Yota1 Performance. They rebuild those engines and they can either sell them to you or point you in the right direction to purchase some. 209yota1.com/

Do people even do valve jobs or ring replacement anymore ? Or is there more stuff needs replacement t ? Miles 2-300K ?

@TimmyTheToolman

2 жыл бұрын

People definitely do both but valve jobs are more common than diving into the lower end of the engine and doing piston rings. What most would do for upper end work is just buy some new or remanufactured heads. If the lower end needs work, I think most would just go for a complete engine rebuild at that point. If you going to do what's necessary to replace piston rings, you may as well tear the whole thing apart and do everything.

What is with the blue on black text at the beginning of the video?

@TimmyTheToolman

Жыл бұрын

A disclaimer for the sue happy people of the world. Basically, we're not responsible for you screwing up your rig. If you really want, you can pause the video and read this boring document. That's why we scroll it by fast, because most people aren't sue happy and they really aren't interested in reading a disclaimer.

@TimmyTheToolman

Жыл бұрын

@@george2113 I know where you're coming from. I'm no spring chicken either.

Hello my dad would like to know where is the address of your store since we live c;odes to San Jose.

@TimmyTheToolman

2 жыл бұрын

We don't have a shop. We operate our KZread channel out of my home. We aren't mechanics for hire. We help people out when it means we can create a new video to share on our channel. What kind of help is your dad looking for?

Are you 100% sure that the engine didn't rotate once you pressurized it? A lot of times the pressure will push the piston down once you pressurize during a compression test and you will lose pressure. If that happens you just put a ratchet back on the crank pulley and turn until you're at the top of the compression stroke again and try to hold it there.

@TimmyTheToolman

2 жыл бұрын

When the engine kicks over and rotates, you hear it and feel it. It didn't rotate when I pressurized the cylinder.

@NKPGarage

2 жыл бұрын

@@TimmyTheToolman ah. Then that's unfortunate. Good luck on the rebuild or replacement !

@TimmyTheToolman

2 жыл бұрын

@@NKPGarage Yeah, he's probably going to get a rebuilt engine.

@NKPGarage

2 жыл бұрын

@@TimmyTheToolman Out of curiosity, have you guys tried to put a scope down in there to see if there is anything visible? I have one of those cheap chinese Amazon scopes that I love finding reasons to use.

@TimmyTheToolman

2 жыл бұрын

@@NKPGarage I did and couldn't see anything other than the top of the piston. I believe he probably has a head gasket issue. I learned after the fact that head gaskets don't just fail between the cylinder and a coolant jacket but they can also fail between the cylinder and an oil gallery. So, it's not a slam dunk it's a piston ring issue like I thought it was when I heard the air escaping into the crankcase.

How much does petrol cost per a litre in the US?

@TimmyTheToolman

2 жыл бұрын

It depends where you live. In my area of California, it's around $4.50 per gallon. Almost every other state in the union is less by 1 dollar or more. California is probably the highest in the whole U.S.

@georgelambert1200

Жыл бұрын

In Alaska we are paying $4.89 us dollars per gallon for regular unleaded gasoline. Diesel is $5.25 per gallon. 9/27/2022

Nothing in a can is going to fix bad piston rings

@TimmyTheToolman

2 жыл бұрын

Yeah, pretty much.

Supercharge the new engine

@TimmyTheToolman

2 жыл бұрын

Who knows what Rey has planned.

Who da fk gave a thumbs down

@TimmyTheToolman

2 жыл бұрын

The answer is we have haters. As idiotic as it sounds, there's literally people who stay subscribed to our channel just so they can give a thumbs down to everything we post. The reason why I know this is I can post a long video, say 50 minutes, and within 5 minutes of us making it live on our channel, it gets a thumbs down. They didn't even have time to watch it.

@Usernamebutwhy

2 жыл бұрын

@@TimmyTheToolman so true! But the good thing is your ratio of lovr to hate is amazing 🤣. Keep em videos coming we love it.

@TimmyTheToolman

2 жыл бұрын

@@Usernamebutwhy You are right. Most people appreciate what we do. How we've developed some real haters is some keyboard warriors think they can talk shit and get nothing back. I've had a battle of words with some guys on our channel, on Toyota forums and Toyota Enthusiast Facebook pages. On our channel, if the comment is way out of line, I can just block them. They can post all they want, but nobody but them can see what they wrote. The count of blocked people is up to 52, I just counted. When the comment isn't that bad and I think it's a potential teachable moment, I'll respond and defend our way of doing things. Sometimes it works out, and sometimes it doesn't. On a T4R.org, one of my nastiest battles was with another KZreadr who was talking shit about our Supercharger Install video we just made live on our channel. I had made a claim that we were the first to detail an install of a supercharger on the 3.4 liter engine and some guy innocently commented this other guy was the first because he did a time lapse of him installing a supercharger. I responded that time lapses are cool and all but they don't show any detail and thus are useless for someone to use. The guy who made the video commented and the battle ensued. He said nobody is going to watch an hour and 20 minute video. We should cut it down to around 30 minutes. I responded politely but the guy kept coming at me and it didn't end well. What's such a burn is that supercharger video ended up being one of our most popular videos. The current view count is 278,000. Also, at the time the video went live, this guy's channel was more popular than ours. We surpassed him over the next year or so and I had plans of rubbing it in his face but decided to let it go. The guy is a total douche. So, the big haters our channel has is due to me. Sean has the ability to ignore these kinds of people but I usually can't. I don't like letting people think they can walk all over me whether it's in person or over the internet. If they dish out shit, there's a good chance they will get some back. Thanks for supporting out channel. We appreciate it! Happy Wrenching!

@Usernamebutwhy

2 жыл бұрын

@@TimmyTheToolman very well said, and i think someone who really wants to go the supercharger way ia really up for even a 2 hour video. The more the detail the better. So man! Your channel rocks! Every video that ive seen ia juat amazing!! God bless ya. Let the haters hate coz they sad in their own life. I will follow u on t4r 😉

@TimmyTheToolman

2 жыл бұрын

@@Usernamebutwhy Thanks. We know our videos aren't for everyone and that's ok. We don't make short and sweet videos for complicated jobs because that's not going to help people get the job done. We want people to succeed and that means lots of detail. Thanks for the kind words. I use to be really active on T4R but participation on that forum has dropped off considerably over the last couple years. I use to contribute everyday on that forum but now I find myself only going on there every once and while. It's sort of lost it's allure for me. More people are on the Toyota Facebook pages these days than on forums.

Какого ты загнал Рея под автомобиль ? Учись пока я жив . Всё на много проще , взять накидной ключ на 12 и крутим за гайки вискаря с помпой ( без усилия свечи то выкручены ) в любую сторону без помощника .

@TimmyTheToolman

2 жыл бұрын

I used Google translate and what it translated into English didn't make much sense.

@BesprovolkiSvias

Жыл бұрын

​@@TimmyTheToolman I will translate it for you. It is in a slang, which makes it un-translatable by any software. Even I have trouble decyfering one word. "Because there are no spark plugs, the crank is too easy to turn now, but we turn the PUMP (instead of a crank), using 12mm wrench." There is one word "вискарь" which sound like it is attached to pump or part of the pump, because it says to turn the nuts of "вискарь with pump". "Вискарь" is a slang for Wiskey (alcohol). That is the only definition I could find on internet. So, Wiskey is some slang for a part that is near the pump or part of the pump, because you are supposed to turn nuts / bolts of "wiskey with pump". This way, he claims, you can do it all by yourself, without assistant.

@BesprovolkiSvias

Жыл бұрын

Lesson for us Free-world countries: nothing can be done in neo-Nazi Russia without alcohol.

@TimmyTheToolman

Жыл бұрын

@@BesprovolkiSvias Thanks for the translation. So I guess he turning the engine over via the power steering pump.

@BesprovolkiSvias

Жыл бұрын

@@TimmyTheToolman Steering Pump is sealed, there are no spinning parts outside of steering pump. I do not see any "whiskey" that is spinning outside of the steering pump that I can grab and crank. I suspect he drunk too much whiskey while writing this. He is most likely dead either from alcohol or Ukrainian shells.

Now is a time to try engine restorer in a can. And do a review to see if it work.

@TimmyTheToolman

2 жыл бұрын

Never heard of it. I sort of doubt it's going to fix bad piston rings but I guess at this point Rey has nothing to lose.

@Raevenswood

2 жыл бұрын

@@TimmyTheToolman you haven’t heard of it because you don’t run a rinky dink operation over there 😂