bad pushrods and lifters?
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Car: '88 Trans Am GTA
Engine: 5.7L L98
Transmission: 700r4
Axle/Gears: 3.27 Aussie 9 Bolt
bad pushrods and lifters?
I decided to start taking the intake and heads off the old motor today that's still in the car. I noticed that no rockers were broken and none of the arms were loose (was checking for collapsed lifters). Out of curiosity, I decided to loosen all the rockers up 1/4 turn and start the car. When I did that, it sat there and idled till I shut it off. Before, it was only idling for a few seconds before it died. Also, the loud whistling noise I was hearing was suddenly gone. I now believe it was coming from a bad seal at the rear of the valve cover gasket on the driver's side. I examined everything while the car was running and noticed that both springs on the #1 piston were being flooded with oil. However, the rest of them were either not doing that or had very little oil being pumped up through the pushrods. My first thought is to clean all the spare pushrods I have from the new block and replace the ones in the car with those, as well as all the lifters, just to be safe.
What would you guys say? Opinions?
What would you guys say? Opinions?
#3
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Car: '88 Trans Am GTA
Engine: 5.7L L98
Transmission: 700r4
Axle/Gears: 3.27 Aussie 9 Bolt
I've got them all tightened down where they don't make any noise at all. Tomorrow I'm going to back them off one by one and listen for the clacking sound and adjust them that way. Before, they were all making noise and I couldn't tell which ones were clacking and which ones weren't.
The method I used was found in Chevy High Performance. It said to adjust in some strange manner. If you're adjusting the intake valve, rotate the motor so the exhaust is just starting to close and vice versa. After I did it that way, the car ran for about a day and decided it only wanted to idle for a few seconds and die after I cranked it.
The method I used was found in Chevy High Performance. It said to adjust in some strange manner. If you're adjusting the intake valve, rotate the motor so the exhaust is just starting to close and vice versa. After I did it that way, the car ran for about a day and decided it only wanted to idle for a few seconds and die after I cranked it.
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dimented24x7
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09-06-2015 03:51 PM