#4 Cylinder intake valve stuck open |
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#4 Cylinder intake valve stuck open |
gnomefabtech |
Mar 19 2023, 09:20 PM
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#1
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Member Group: Members Posts: 97 Joined: 27-December 22 From: Los Angeles Member No.: 27,063 Region Association: None |
So I'm trying to resurrect this 76 (or is it a 75?) that I just bought and it doesn't have compression on the #4 (rear right) cylinder. After some tests with compressed air it's clear that the intake valve isn't closing. I pulled the valve cover and the rockers move OK but that valve does not close all the way. Everything else looks good.
I have a lift but was wondering if I could pull that head without dropping the engine. It looks like there is room but I'm not sure about the engine tin etc. Seems like either the valve is bent or somehow stuck and maybe I can just fix the one thing there. Anyone pull heads while the engine is still in the car? |
gnomefabtech |
Mar 20 2023, 10:47 AM
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#2
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Member Group: Members Posts: 97 Joined: 27-December 22 From: Los Angeles Member No.: 27,063 Region Association: None |
Thanks for all the input. I guess I'll drop the engine and see what's what in there. I have a really great shop with a lift and trans jack so I'm guessing I can drop the engine in an hour or so. It looks like it could use a new engine wiring harness as well because all the wires are very dried out.
The stock thermostat is still there but it's disconnected (of course). The rest of the car is COMPLETELY rust free.Check out this pic of the hell hole. I've never seen one that still had the original metal. |
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