Compression problem?

[TJ's Chevy]

My old 292 has a tired 147,000 miles on it. We checked the compression in the number 1 cylinder and it came to 90 pounds. Is that low? My question is, What is the stock compression on a 292? Heard the ratio was like 8:5:1. If anybody know what the pounds are that would be great.

[geezer#99]

What's the compression in the rest?
Most important thing is that they're all within 10% of each other.
#1 might be at 90 and the rest at 100.
If they're close keep her runnin' till she dies!

[fleetsidelarry]

x2 ↑ , but fyi, the '63 shop manual says 130 psi (also, case you didn't know or forgot, make sure you check compression with the throttle wide open)

[TJ's Chevy]

Originally Posted by geezer#99

What's the compression in the rest?
Most important thing is that they're all within 10% of each other.
#1 might be at 90 and the rest at 100.
If they're close keep her runnin' till she dies!

I woulda given the compression for the rest if it did not take twenty-four cranks before I got to the full compression. Reason being is the compression tester is made for a big block chevy, so we used the adapter which severly limited flow causing it to take forever to peak. I need that old starter to last a hair longer before I scrap it.

[luvbowties]

Originally Posted by T.J. MCCAULEY

I woulda given the compression for the rest if it did not take twenty-four cranks before I got to the full compression. Reason being is the compression tester is made for a big block chevy, so we used the adapter which severly limited flow causing it to take forever to peak. I need that old starter to last a hair longer before I scrap it.

I agree also on even psi among ALL cyl's. Sounds like a good time to buy a reliable tester. Cost of a tail to rule out need to replace the dog is a good investment. Really, one of the BEST engine analyzers out there, imo!
Luck to you in your findings.
Sam

[TJ's Chevy]

I find that I should just jurk the thing outa the truck and restore it! Then I shoulnt have to worry about compression I hope!