BB chevy prolems

[Roddin28]

hope somebody can help me -- a friend of mine is driving a 454 chevy motor in his 64 pu - the motor was overhould 1500 miles ago, incl new pistons, edelbrock heads (new) and so on an so on - he put a lot of money in it and now he needs 1 liter oil at 60 miles and there's not the power the engine shold have - I know it's a horrible question - it's like calling a doctor "why I have headache" - compression ratio is 9,2:1 on all 8

[True]

I am no expert but if you are using that much oil so early on and have power loss, I am wondering if you have an issue with rings on one of your cylinders. Maybe one simply didn't get installed correctly and got eaten alive. I would grab a compression tester and run each cylinder to see if you have a bad pot.

Any other symptoms? (backfire, blow by, etc...)

True

[Roddin28]

there are no syntoms like backfire, blow by,..
I did a compression test , and all 8 are the same (9,2:1) - the oil rings were my first thought too

[ELpolacko]

I would like to know what instrument you used to tell what the compression ratio is?

More importantly would be a PRESSURE test and even better if you have a compression leak down meter. It sounds like the rings may not have seated. But other things could cause rapid oil consumption. Like: PCV system literally sucking oil into the manifold, oil leaks including main seals, valve covers and intake manifold end gaskets and that pesky joint between the oil pan/timing cover/engine block.

On rare occasions I have seen Penzoil "coke up" on the bottom of the intake manifold and fill up the entire lifter valley and the insides of the valve covers.

Does it smoke?

[Roddin28]

okeey that are some options
-- of course a leak tester would be the best - I'm only using those tester you have to srew in and start the engine till the piston is coming up 4 times
--- and it doesn't realy smoke, but the oil is coming thru the exhaust ( I can see it on the garage wall)

[SinisterCustom]

I'm in agreement with the others. Sounds like rings didn't break-in properly. Cranking pressure, I would think, should be upwards of 170-190 psi. The highest and lowest readings shouldn't vary more than +/- 10 percent.
Hope this helps.

Josh

[colorado51]

Maybe the cylinders were not honed correctly for the type of rings being used.

How do the plugs look? Are they all oily, or just a few of them?

[Paul]

has he had this problem from day one or is this recent?