compression

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12-27-2007, 02:55 PM

BLAZE GS

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Join Date: Aug 2007

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Posts: 278

compression

so, last night i put the flywheel and trany back on my EBAY BOUGHT[sm=badidea.gif] engine and got these #'s 125 125 90 110.[sm=smiley35.gif]ok this is what i have.#2 motor with bad bottom end,#1 a motor with good bottom end but bad head,#3 7 bolt engine which the timing belt snapped. now i guess im going to swap heads and then call it good i hope.......

12-27-2007, 03:04 PM

kweef

Join Date: Dec 2007

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Posts: 253

RE: compression

well i hope it all works out for u...but like u said, ebay bought

12-27-2007, 07:48 PM

dsm1990gsx

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Join Date: Oct 2007

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RE: compression

That sucks, try doing a cylinder leak test to see where your problem is.

12-27-2007, 09:45 PM

BLAZE GS

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Join Date: Aug 2007

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Posts: 278

RE: compression

it most likely the valves because the belt was lose and i think it jumped but how would i do a leak test?

12-28-2007, 06:52 AM

dsm1990gsx

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Join Date: Oct 2007

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Posts: 4,682

RE: compression

Well you need a cylinder leak tester, then you have to have the piston at top dead center w/ all the valves closed and you test 1 cylinder at a time. You pull the spark plug out and insert the tool into the plug well and pretty much add compressed air and see how much leakage you have for that cylider.

Or you can just pull the head off a see if the valvesare bent lol.