my olds 394 is spraying my ford with oil! the engine has not beeen redone and the breather on the oil filling tube is old + i have offenhauser valve covers with no breathers on them. the only way out now for the crankhouse ventilation is thru that single breather in the oil filling tube and of course that is not enough. it feels like there should be at least one more "hole" for the engine to breath thru. i searched the web and found some good (and bad) solutions to the problem. one guy had drilled a hole thru the oil filling tube & put a hose in it to the air cleaner. another guy had also drilled a hole in the tube but he had the hose conected to the carb. my second question is: will two breathers (one on each valve cover) and a fresh one for the oil filling tube prevent oil from gushing out on my new paint job or will more breathers just mean that there are more "holes" to leak & gush oil from over my new paintjob? i would hate to put alot of ugly PCV stuff on my engine!<!-- google_ad_section_end --><!-- / message -->
Crankhouse? Is that the English translation of the Swedish word for what we in the USA call a crankcase? Anyway, look for a draft vent tube at the top rear of the block that vents out over the p***enger side of the bellhousing. it's about 1" /2 1/2 centimeters in diameter and it's opening will be under the car The oil screen to it, which is under the valley cover, might be clogged with sludge. If you want a PCV closed system, clean out that filter and modify the outlet for your PCV valve/hose and run it to the manifold, then get a filler tube cap with a vent bib made for a cosed system Mopar slant 6 and run it to the aircleaner. That's what I did on my '55 Olds, with no rocker cover vents. Ran it that way for 12 years
Haha, i told you my english ****s, also it´s early in the morning here. Of course i mean crankcase! My engine is from 1962 so there is no such tube at the top rear of the block. I guess it came with a PCV closed system from the factory? My friend´s 394 from 1959 has got a draft vent tube though... Here´s a picture of the car.
If anyone feels like it, they´re free to change the name on this thread so that people understand what i mean
I doubt anyone was confused by what you meant. I was just having fun with it. To my knowledge, '62 didn't have factory PCV yet, but someone may have put a block plug in the hole where the draft tube should go. Check for it at the back facing the firewall. Nice looking truck by the way!!! but I bet oil really messes with that white firewall!!!
ok no there is no tube or hole at the top rear of the block, i checked it out some days ago & there has never been anything there. my friend with the 1959 394 also has a 394 from 1963 and there is no such hole/tube on that one either. another friend has also got a 1962 394 and there is nothing there either. they must have changed it around 61 or 62... i guess the only way to get rid of the problem is to run some ugly hoses from my valve covers to my carb & aircleaner. i don´t think that two more breathers will help me to get rid of the oil puking all over my new paint job yeah i painted it flat green metallic this winter & did the new interior in white...i don´t dare to drive the damn car now because of all the oil spraying all over the place. thanks, by the way
OK I "erred", the 394 is way different from the earlier engine I'm used to. Valve cover vents won't stop the oil vapor. PCV valve from the crankcase area to the intake and a closed filler cap with a hose bib and hose going into the air cleaner base will work though. I'd tr to find a location on that intake that is one layer that you can drill for a PCV valve/grommet just to keep the valve covers clean. some Pontacs did this so it is possible on some designs and you could posibly use the Pontiac valve too. That one goes from crankcase to carburetor base below the ****erflys or straight into the intake to draw off the vapor at closed throttle/idle. The other hose goes from what used to be the filler breather to the aircleaner, so the carburetor draws the vapor in when running off idle/throttle open. Until you et that done, wrap some old socks over the breather to catch the oil. It's 1:00 AM here, maybe bring this back up in about 6 hours for the morning gang.
hmm, how about drilling a hole in my valley cover and just let a hose run from there and let it hang out under the car? a bad idea?
It would be better to take that hose and plug it into the carb base. That way you have a constant flow from the oil filler into the engine, and there won't be anything leaking on the engine. Just get a new filler cap with a fresh filter inside. You can also restrict the inside diameter of the plug so that you don't pull huge amounts of air into the engine. This would have the effect of a vacuum leak.
i think most of them had a breather tube that went from the valley cover to below the body/engine. also, i know that the early 331 caddy motors had a problem with not breathing well, and i think the olds are based off the same design??? i know they make side breathers for the valve covers. one more thing.... maybe add a piece of sheet metal under where the breather is to keep the splattering oil off of it. i know some valve covers are like this.
i have just got the car together after the winter so i would really like to take an easy way out. instead of lifting my intake & drill a hole in the valley cover i could drill a hole in the oil filling tube (don´t know the exact word) & run a hose beneath my car!? i mean the oil is poring out of that old cap/breather now so if i buy a closed filler cap & then weld a little pipe to the oil filling tube & run a hose underneath my car it will come out that way. then i can take care of the problem when the looong winter comes. stupid idea or what?
have to agree. it sounds more like blow by causing the oil to puke out. any thing in the intake is just going to cause more problems with fouling plugs.
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