Doing leak down test. Couple questions

[juntjoo]

I've been told I have no compression and that my valves are (most likely) bent. I just wanted to check it out on my own so I already did a compression test and couldn't get compression and now with the leak down test my results seem to confirm also but I've never done this so I just wanted to make sure.

Anyway, so testing cylinder #1 I'm hearing air escape all cylinders especially #4. Wouldn't that indicate that my intake valves on cylinders 1&4 were bent and that 2&3 are either bent or just open since 1&4 are at TDC?

BTW I didn't really hear anything at the exhaust testing #1, nor under the coolant nor oil caps, which wasn't suspected.

Last question -I didn't check
anywhere else other than cylinder #4 for intake valve issues because I didn't know how to. I've read to check the throttle body and BOV line but don't know where that line is. And the throttle would be that little spring loaded mechanism with a cable attached to it correct? Do I just pull that back and listen for air to escape?

Thanks

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[juntjoo]

Nevermind BOV question. I don't have turbo.

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[JamesH]

To be honest you need to tear the head off regardless at this point. What lead your car to the point of not running and you doing a compression check?

I'm gonna guess and say your timing belt broke. If thats the case you might as well just start hunting for a assembled head and fix it with no compression. You're gonna have bent valves, bad guides, and lord knows what else. On top of that, the pistons are what contacted the valves to bend them. SO now you will likely end up with hot spots on the pistons if you just slap a head on it. Causing likely preignition and further issues down the road.

If it were me, and it's not, I'd just buy a motor.

 

[juntjoo]

Well I guess once i remove the head I can inspect the pistons. What did you mean tho when you said to put a new head "without compression"?

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[JamesH]

This is assuming your timing belt broke and you bent valves.

If thats the case then you will end up replacing the valves, guides, plus labor, pending there is no issue with the head itself. You'd be better off getting another used head.

 

[juntjoo]

Yeah, I plan to get a new, used one. But what did you mean when you said "fix it with no compression"?

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[JamesH]

I may have been distracted when writing that. Ignore it. My wife tends to only need me to do something when I'm in the middle of typing.

 

[juntjoo]

No. thanks

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