Timing Chain Replacement
04-15-2014, 05:02 PM
#1
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Car: 1988 Pontiac Firebird Formula
Engine: L98 TPI 350 Originally 305 TBI car
Transmission: 700R4
Timing Chain Replacement
So I've come to the conclusion that I need a new timing chain/gears. I took the dist cap off and I have probably 10-15 crank degrees of lag. My engine has 193k on it so I'm not surprised. Anybody have any clever tricks to keep the crank from rotating to manually loosen the crank pulley bolt?
04-16-2014, 06:56 AM
#3
Re: Timing Chain Replacement
I have an old compression tester hose that I removed the valve, the hose hooks up to shop air. Screw that into a spark plug hole & turn the engine over by hand, once the valves close there should be enough resistance to loosen the crank bolt.
04-16-2014, 11:35 AM
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Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Re: Timing Chain Replacement
Don't use a strap wrench on the balancer. It could slip, then you would be in real trouble. Impact wrench works really well if you have air....
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