...YOU were 'WRONG'??? PSIG = Pounds Per Square Inch (reading taken at the ) Gauge.
Atmospheric Pressure at Sea Level is 14.7 PSIG, how many of You have realized, That number also represents the Perfectly Tuned Stoichiometric RATIO of Air to Fuel 14.7:1.
I do concur with Doug about the PVC Valve.
I put My PVC system back on permanently. I did not like seeing the 'Blow-By' Spuing Out of the Breathers, in the rearview mirror. But, I designed and use 'Vapor Separators', at both valve covers to prevent the 'Intake' of Oil. So The Oil Level does Not Recede Down the Dipstick. Vacuum in the Crankcase, as Doug reminded Us, Helps to Seal the Rings and Restricts Excess Oil from Burning.
...And NO, I do Not send dirty emails! I just send the Boys out to Do You Body Damage!!
Body damage? you would hurt a Pantera? Savage!
In the old days of multi-carbed flat heads, the magic fix for glazed rings usually from over carburetion could be corrected by removing the air cleaner turn your idle up to 2500 then with a couple of teaspoons of "Bartenders Friend" (a very mild abrasive powder used to clean pans sinks etc.) blow it into your carb. I was told this but never did it. I did find that the reason was a blown power valve, that was washing down the cylinders. I installed a new power valve ( about $6.00 )and the rings sealed. Their are no magic fixes.
quote:
Originally posted by PanteraDoug:
... Every engine needs crankcase vacuum to seal the rings or maybe more correctly make them work right ...
too much vacuum applied to a crankcase will prevent the oil pump from pumping oil.
quote:
Originally posted by PanteraDoug:
... So shoot me ...
Don't tempt me
quote:Originally posted by George P:quote:
Originally posted by PanteraDoug:
... Every engine needs crankcase vacuum to seal the rings or maybe more correctly make them work right ...
too much vacuum applied to a crankcase will prevent the oil pump from pumping oil.quote:
Originally posted by PanteraDoug:
... So shoot me ...
Don't tempt me
Yes, but the number is thought to be less than 12 inches. 8-10 is what to aim at.
That is what a functioning pcv system should provide.
Should I duck?
quote:Originally posted by George P:..
too much vacuum applied to a crankcase will prevent the oil pump from pumping oil....
I KNOW I should stay out, BUT I can't help myself.
would the reason for that be the vacuum begins to pull the entrained air out of the oil causing it to foam up.
I was wondering about the use of an abrasize in the combustion mix to seat rings. How about a solvent to wash off the wall glaze
quote:Don't tempt me
I busted up laughing when I read that one!
I am still chortling about it!
Rocky
quote:Originally posted by Rocky:quote:Don't tempt me
I am still chortling about it!
Rocky
Your a/f ratio could be off?
getting back to the question, you broke the engine in the wrong way, this maybe why your rings did not seal, but, since you are doing all this for the first time follow the instructions referenced by Jack ( boss wrench ). Your rings will seal in time providing your air fuel ratio is correct. Running to rich ( to much fuel ) washes down the cylinders eliminating the oil that seals the rings to the cylinder wall, this is called glazing and is normally again caused by a blown power valve, incorrect over jetting or in a word your carburetor.
Hate to throw something in the mix and it appears you have built a bunch of engines but i wanted to just add one thing. Rings have a bevel an it matters if it is facing to the top or bottom of the piston. I'm sure you checked that. 
That's why the rings are marked "top" on the top.
Clever hey?
Clever hey?
the rails of the 3 piece oil control ring act as springs, if you hold the circular rail at your finger tips and squeeze inward the ends at the gap will always spring the same way ....
which way do you orient the deflection?
all the same pointing upward
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all the same pointing downward
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opposed pointing toward each other
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opposed pointing away from each other
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which way do you orient the deflection?
all the same pointing upward
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all the same pointing downward
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opposed pointing toward each other
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opposed pointing away from each other
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