Quote:
Originally Posted by dkveuro
There's a sweet spot at tdc for each piston.
You need a leak down test gauge set to do the job and record results.
Remember 5 cylinder engines do not fire every 180 of crank so you need to do the test at bdc..which is safer.
Trying to get the piston to stay at tdc can be fustrating and dangerous.
Do not use a wrench or breaker bar on the crank bolt when applying air pressure...use a flywheel lock.
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Ah, OK. So the trick is to be at "exact" TDC and that would be 180 degrees from #1 on my 4 cyl engine for # 3.
How does a 'flywheel lock" work? I would assume the starter motor would need to be removed to "jam" the ring gear? I knew there was more to this or everyone would be doing it 
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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug
"Lifes too short to drive a boring car"
Last edited by Brian Carlton; 09-02-2006 at 10:13 AM.
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