finally! official thread!
Senior User
Joined: Jul 2014
Posts: 177
Likes: 0
LOL you confused me thoroughly.
On the other hand, I would 100% want to see the motor I was buying, you know, before I bought it, or had the machinst.. machine it..
Thread Starter
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Posting Guru
Joined: Mar 2013
Posts: 1,294
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I bought a built motor that the guy never paid for, and am having my guy take it apart and check/fix it. And I'm dropping it and a zf5 in place of my bad motor and t18.
I'm sorry bud. I got so used to everyone knowing what I was doing I guess I forgot to add all the details to the original post!
I'm sorry bud. I got so used to everyone knowing what I was doing I guess I forgot to add all the details to the original post!
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
I not only want to see it, but I disassemble the engine, mike the parts, and then take them to the machine shop. Once I get the parts back, and I hope to in the next week, I mike them again to ensure I got what I asked for. Nothing left to chance.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
I don't even..
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
Really hard to say if it's never been run.
Rings aren't seated, there's no way to crank it for a compression test.
Watch out for the breaker bar when you pressurize a cylinder for leakdown.
Rings aren't seated, there's no way to crank it for a compression test.
Watch out for the breaker bar when you pressurize a cylinder for leakdown.
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Senior User
Joined: Jul 2014
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I've always wondered if it was possible to do a leak down test with pushrods removed?
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Easy. Just bring the pistons to TDC and don't worry about which stroke it is on.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
I've had no problem at all with the piston on or close to TDC. It will creep a bit if not on TDC, but not much. And that's on a worn-in engine. I would think the rotational drag on a new engine would be significantly more, preventing creep.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
No point in doing a leakdown at the bottom of the stroke.
That's not where the bore really has to seal.
I say we all congratulate Dylan on his progress and let him have his thread back.
That's not where the bore really has to seal.
I say we all congratulate Dylan on his progress and let him have his thread back.