Wow, a video on how to perform a cylinder leak down test by someone who actually KNOWS WHAT THEY’RE DOING. Thank you!

Bro idk why u don't have more followers. Your info is spot on, love your videos and thank you

Another excellent instructional. I've got an Outback video coming up with what ends up being the same diagnostic. Then a huge repair following up.

thank you sooo much. that's a very clear instructional video. My 07 STi and thank you!

I have to perform a leak down on my 05 Legacy GT, this video was very helpful! Thank you for the upload

@MrSubaru1387

4 жыл бұрын

You're welcome. 👍🏻

I've used several of your videos and find them very useful. Very professional and I like the tool porn. Nice set ya got there.

@MrSubaru1387

6 жыл бұрын

Thank you. Glad you enjoy the videos. 👍

That was so delightfully easy thank you for this video

@MrSubaru1387

5 жыл бұрын

You're welcome. 👍🏻

I wish more videos were like this, educational instead of some clown messing about. Thank you.

@MrSubaru1387

5 жыл бұрын

Thank you. Glad you enjoyed it.

You should have an affiliate link for that tester, videos helpful might want to get this tool

Thank you for all the great videos! I tried a leakage test for the first time thanks to your video and understand why to perform the test. 06 outback 2.5 non-turbo, cylinder 2 has about 35%leakage with air heard escaping only in cylinder 2 & 4, no other spots mentioned in your awesome video. Cylinder 4 has about 5% leakage with no air heard in cylinder 2. Any suggestions? I had the heads surfaced and gasket changed about 40k miles ago, currently 170k miles. Want to keep the car for my sons first car.

@cajunaggie9815

4 жыл бұрын

Did you ever figure out where your problem was? Did you listen to hear if air was leaking from the exhaust valve? If you don't hear it at the throttle body or the oil fill tube and your coolant isn't bubbling, it must be going out the exhaust, surely.

Awesome video. If that had good compression I think I would know someone that may have wanted to buy the whole car. lol

@MrSubaru1387

7 жыл бұрын

I've got a couple of these EZ30 outbacks. lol

I have a strange issue with my engine Min sped for hot compression test is 133 standard value is 188 My tests are #1 130psi #2 133psi #3 140psi #4 136psi My leak down test is #1 24% (rings) #2 10% (rings) #3 10% (rings) #4 14% (rings) I'm trying to figure out why my compression is kinda low on all cylinders but the leak down test is in spec

May I ask home fome with a boost leak test remove the filler cap to not damage rings but with a boost leak it ok to do so? Is it because u knew engine not good anyway? Should u remove filler cap for leak test?

Is there a Subaru chart of what compression should look like for all Subarus of all years , from low mileage to high?

I did a compression test. Cylinder 1 125 Cylinder 2 135 Cylinder 3 145 Cylinder 4 150 I'm in process of thinking about rebuilding the engine. Could it be possible there is a timing issue as to why there low compression in cylinder 1 n 2 I understand can be many reasons. To add the car drives well, reaches just under 1bar boost and it a standard wrx bugeye. Thank u for all your videos. I now have a hobby fixing my wrx because of u. ♥️

@TheZohanLohan

3 жыл бұрын

make sure your battery is fully charged, if you went from cyl 4 to 1 that could be all it is, hopefully

I was doing a leak down test on my spare ej engine this am and when I pressured 1 I got air out of 3 plug hole i’m assuming the head gasket is gone between the 1 and 3. It does not surprise me when I pulled the engine it had a cyl 3 misfire.

@MrSubaru1387

3 жыл бұрын

Yup. Or cracked head. Head gasket is the most likely.

Is it possible to rotate the cylinder by hand without removing the engine?

Can you have good compression but bad leak down? I have high oil consumption (1 quart per 500 miles). PCV is fine. Power is good and compression is good.

@MrSubaru1387

6 жыл бұрын

+Patrick C. Yes. You can. 1 qt per 500 miles is super excessive. Smoking from the tailpipe?

@PhotoXplorer

4 жыл бұрын

@@MrSubaru1387 What Patrick described is what I'm dealing with right now on my 2009 Outback. Rebuilt the top end of the engine (heads overhauled and resurfaced by a shop) and I've had smoke on startup and excessive oil consumption (basically what he described). Thanks for the compression test video, I will try to do this soon. All pistons did have good compression I think.

I have a 2006 Subaru STI and Ive recently had the engine re-built. After I got through the break-in period I started having alot of problems, overheating, engine lean, rough idle etc. Now the car has a massive rumble at idle and at 3000rpm there is backfiring(Its a small turbo so it engages at 3000). I have fixed all of the other problems but now it has white smoke coming from the exhaust and from under the oil cap at higher rpms(~3500rpm

@MrSubaru1387

5 жыл бұрын

Cylinder leakage test. Sounds like a HG or piston issue.

Snap on everything except the leak down tester 👀👀👀 so that means that otc one is good right?

@MrSubaru1387

2 жыл бұрын

A leak down tester is an air inlet, two pressure gauges, and a pressure regulator. Kind of difficult to get wrong. Lol

Got a Q for you. I just replaced my engine in my 2006 Forester 2.5 SOHC non-turbo (rebuilt from LKQ) and I am getting a misfire on cylinders 8 and 4 but only at high rpm. Sparks and wires are new, coil is new. Any ideas of what the issue may be?

@MrSubaru1387

5 жыл бұрын

Cylinder 8?

@fitishfatdad6432

5 жыл бұрын

@@MrSubaru1387 Ha! 3 and 4

@MrSubaru1387

5 жыл бұрын

I'd do a leak down test.

@fitishfatdad6432

5 жыл бұрын

@@MrSubaru1387 yeah that's what I thought

@fitishfatdad6432

5 жыл бұрын

@@MrSubaru1387 leak down showed a negligible variance

I'm going to do a compression test because my Subaru drinks a lot of oil. I have no leaks nor smoke from exhaust. Is this the best test to do next? I imagine the piston rings worn?

@braden2591

2 жыл бұрын

What did you end up finding out what was wrong with your car? Mine drinks oil like it's a new fad

@rebel.mma.youtube

2 жыл бұрын

@@braden2591 no, I just told myself save for new engine/rebuild. I did a compression test all were 145/150 but cylinder 1 was 125!!! Leak down all lost no compression!!! Wtf. So confused.when u ask people who are actual mechanics they look at u like ur mad or ask why u bothering!! This why I learnt to fix myself. Can't stand a many mechanic to deal with. No different to a doctor that gas lights u when u say ur ill. Just sends u away if they can...lol I got a 6speed and preparing to just start again. The car performs well. No smoke at all. Like even on acceleration or after. Not even start up is smoke. strange it drinks so much oil!!! This why I learnt to fix it myself because u take it to someone n they act like nothing wrong and say that subaru, they drink oil. I've made myself a smoke tester so I'm gonna do a leak down test with smoke..it too noisy where I am to hear for leaks. I'll let u know how it goes.

@braden2591

2 жыл бұрын

Try running Marvel Mystery Oil in the oil to clean up any kind of sludge or carbon buildup. Possibly there's carbon buildup around the rings allowing oil to get by.

@braden2591

2 жыл бұрын

Also what kind of oil are you using? I've read that Mobil1 oil has a tendency to burn in Subaru

@rebel.mma.youtube

2 жыл бұрын

@@braden2591 ok thank u will look it up

WARNING!!! I was doing a leak down test on my '98 wrx sti (ej20) before I saw this video and I screwed one of the adapters that came with the kit into the spark plug hole instead of screwing the pipe in like this guy and I it got stuck! The spark plug hole tapers in and the adapter is bigger and takes a bigger socket than the spark plugs so it went in so far then the socket wouldn't grip it to get it out! lol. I screwed an old spark plug into the adapter with a load of thread lock so I'm hoping it will stick to the adapter and screw out ok lol. Don't do what I did!

@CuttinChris

5 жыл бұрын

I had almost the same thing happen to me as well. Right before using loctite on a spark plug to try and get the adapter out I tried a nice big wide flathead screwdriver and it grabbed the adapter threads and turned it out so easily i didnt even think it grabbed lol