oil fill issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

philverado · 06-06-2011, 02:09 PM

Hi All,
I've installed a set of black wrinkle valve covers( I believe they are proform) and air cleaner onto my bone stock 305 powered '86.
There is pcv on drivers side cover and push in breather on pass side cover.
I have a problem in that both of these holes are baffled and as a result it's an absolute nightmare to fill with oil.
I recently spent 45 minutes renewing the oil after an oil change!!
Any thoughts on this? Can I modify the breather hole and drill out the baffle plate or will this make it more likely to throw oil out through the breather?
I'd appreciate anyone else's ideas or has anyone else had the same problem with these covers?
Thanks guys.
Phil.

kevinr1970 · 06-06-2011, 06:03 PM

I have the covers that are a grey color but I believe are the same parts.
I would interested in knowing about modifying those baffles too?

Took it to the local quick oil change place and they spilled more oil on the engine than they got in to the oil pan...
Top that off with them "cleaning" the oil off with some sort of solvent permanantly staining (for lack of a better word) the coating.

Needless to say they bought me a new set, but this time I went with the chrome version to not have to deal with the color issues again.
But I am concerened that they will have the same problems with filling the oil?

philverado · 06-06-2011, 06:49 PM

Actually, I'm just wondering if maybe there should be a left and a right side cover that are different, but maybe I got shipped 2 of the same side???
It can't be right that it should cause you to have to literally trickle oil in when refilling surely?
Cheers, Phil.

rayfinseats · 06-09-2011, 01:16 AM

Can I modify the breather hole and drill out the baffle plate

yes

06-06-2011, 02:09 PM	#1
philverado Registered User Join Date: Apr 2010 Location: Penzance. U.K Posts: 18	oil fill issue Hi All, I've installed a set of black wrinkle valve covers( I believe they are proform) and air cleaner onto my bone stock 305 powered '86. There is pcv on drivers side cover and push in breather on pass side cover. I have a problem in that both of these holes are baffled and as a result it's an absolute nightmare to fill with oil. I recently spent 45 minutes renewing the oil after an oil change!! Any thoughts on this? Can I modify the breather hole and drill out the baffle plate or will this make it more likely to throw oil out through the breather? I'd appreciate anyone else's ideas or has anyone else had the same problem with these covers? Thanks guys. Phil. Last edited by philverado; 06-06-2011 at 06:46 PM.

06-06-2011, 06:03 PM	#2
kevinr1970 Senior Member Join Date: Aug 2004 Location: Everett, WA Posts: 2,316	Re: oil fill issue I have the covers that are a grey color but I believe are the same parts. I would interested in knowing about modifying those baffles too? Took it to the local quick oil change place and they spilled more oil on the engine than they got in to the oil pan... Top that off with them "cleaning" the oil off with some sort of solvent permanantly staining (for lack of a better word) the coating. Needless to say they bought me a new set, but this time I went with the chrome version to not have to deal with the color issues again. But I am concerened that they will have the same problems with filling the oil? __________________ 2009 Honda Fit CfC (bsf 44.9 mpg) 2000 Tahoe Limited 1991 GMC CrewCab Dually 2wd, will end up swb, not dually and replace CCswb below 1991 GMC CrewCab Dually 4x4, just going to fix things up for now 1982/1989 K5/GMC Jimmy 2wd 1987 GMC 1/2 ton swb 2wd Crew (sold)

06-06-2011, 06:49 PM	#3
philverado Registered User Join Date: Apr 2010 Location: Penzance. U.K Posts: 18	Re: oil fill issue Actually, I'm just wondering if maybe there should be a left and a right side cover that are different, but maybe I got shipped 2 of the same side??? It can't be right that it should cause you to have to literally trickle oil in when refilling surely? Cheers, Phil.

06-09-2011, 01:16 AM	#4
rayfinseats Registered User Join Date: Dec 2010 Location: sioux city, iowa Posts: 619	Re: oil fill issue Can I modify the breather hole and drill out the baffle plate yes



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