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-   -   Engine Troubles... (https://67-72chevytrucks.com/vboard/showthread.php?t=570102)

RHGuyettejr 03-14-2013 05:45 PM

Re: Engine Troubles...
 
Quote:

Originally Posted by trevrolet65 (Post 5947033)
I 'd run a compression check on the cylinders missing
Posted via Mobile Device

Yeah, Im going to pick up a compression gauge tomorrow night after work (i should own one anyway with all the other vehicles I work on) and also borrow a dwell meter form a friend. Ill run the compression check and see what happens.

Just a question, having never done this on an older engine, will the continued cranking flood the carb? and is there a way to prevent that?

trevrolet65 03-14-2013 06:53 PM

Re: Engine Troubles...
 
Quote:

Originally Posted by RHGuyettejr (Post 5947363)
Yeah, Im going to pick up a compression gauge tomorrow night after work (i should own one anyway with all the other vehicles I work on) and also borrow a dwell meter form a friend. Ill run the compression check and see what happens.

Just a question, having never done this on an older engine, will the continued cranking flood the carb? and is there a way to prevent that?

Leave the choke off and don't hit the gas peddle or throttle linkage. If she floods, she'll just crank over faster. A trick I use to start with a low battery. I've had the cylinders bypass due to failed head gaskets. The bottem end sounded good from what I could tell from the vid. If the compression tests bad, I guess pull the plug beside and see if air is swooshing back and fourth, you can tell. Then its pull the heads time, sorry.

RHGuyettejr 03-15-2013 06:57 PM

Re: Engine Troubles...
 
Well I did the compression test, and the results are in

1 = 0psi
2=149psi
3=149psi
4=130psi
5=0psi
6=148psi
7=5psi
8=149psi

Looks like I need to pull the heads :(

Lattimer 03-15-2013 07:41 PM

Re: Engine Troubles...
 
Quote:

Originally Posted by RHGuyettejr (Post 5949441)
Well I did the compression test, and the results are in

1 = 0psi
2=149psi
3=149psi
4=130psi
5=0psi
6=148psi
7=5psi
8=149psi

Looks like I need to pull the heads :(

That sucks.:(

trevrolet65 03-15-2013 08:03 PM

Re: Engine Troubles...
 
pull the valve cover on that (the left) crank it over and see if the lifters are rocking up and down, maybe flat cam.

trevrolet65 03-15-2013 08:04 PM

Re: Engine Troubles...
 
or the lifters collapsed or not adjusted the rockers.

trevrolet65 03-15-2013 08:05 PM

Re: Engine Troubles...
 
or broke studs, may have pulled loose


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