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Old 05-10-2022, 07:43 PM   #290
LostMy65
But Found Her 25yrs Later!
 
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Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,482
Re: My 66 Service Truck Build Thread

Did a compression test. #6 is about 10 psi less than the others.
I squirt some oil in there and it's still the same. Sounds to me like a valve issue with #6.
.
I put all new plugs and wires on as my last check for the back fire issue.
But it makes no sense to dump money into gm Goodwrench heads, so I'll either pull them and try some lapping or buy a nicer set.
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I lost my 65 - Found it 25 years later:
http://67-72chevytrucks.com/vboard/s...d.php?t=426650

66 C20 Service Truck:
http://67-72chevytrucks.com/vboard/s...d.php?t=428035
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