front cover gaskets and oil pan leaks...reason for them
09-09-03, 08:33 PM
#1
front cover gaskets and oil pan leaks...reason for them
I've often wondered why we have some many oil pan leaks and front cover gasket leaks. Some right after redoing the gasket material. When I was taking my UIM manifold off, I realized the PCV valve that is inline with the oil filler neck and the UIM could be the culprit. If it fails and allows pressurized air to go into the oil filler neck and then down into the oil pan, exerting pressure on it and the front cover, it could possible be the reason so many people have problems with them leaking.
When I bought my extra UIM off a forum seller, it came with the hose attached and when I blew threw it, it squealed as though if I could push any more pressure it would allow the air to go through. I think I'll buy a cheap vacuum/pressure pump and check it for sure.
Opinions?
Tim
When I bought my extra UIM off a forum seller, it came with the hose attached and when I blew threw it, it squealed as though if I could push any more pressure it would allow the air to go through. I think I'll buy a cheap vacuum/pressure pump and check it for sure.
Opinions?
Tim
09-09-03, 08:57 PM
#2
Bigger and better things
Ye its an issue.. I have heard of people making pressure fittings and while checking for leaks with 20psi the oil cap shoots off... So Ye.. its a problem!
09-10-03, 01:50 AM
#5
Cap the bottom nipple comming out of the oil filler neck. Mount a catch tank somehwere, preferably not too low in the engine bay. Run a hose from the side nipple of the oil filler neck to the top of the catch tank. You can splice in a pcv or other check valve into there (make sure its allows flow towards the tank. Also cap the nipple on the upper intake manifold where the pvc originally ran to. You can also run a return line from the catch tank if you want. Just run it to the stock pvc nipple on the manifold. In this case put the one way valve in that hose facing towards the manifold. This is the way I have my car set up. Blowby exits the side nipple of the filler neck and goes to my catch tank, which is mounted on the back of my vertically mounted radiator. I have a return line going back to the upper intake manifold in case the catch tank gets overfilled before I have a chance to empty it.
09-10-03, 02:10 AM
#6
Rotary Freak
Originally posted by Rotary Experiment Seven
Cap the bottom nipple comming out of the oil filler neck. Mount a catch tank somehwere, preferably not too low in the engine bay. Run a hose from the side nipple of the oil filler neck to the top of the catch tank. You can splice in a pcv or other check valve into there (make sure its allows flow towards the tank. Also cap the nipple on the upper intake manifold where the pvc originally ran to. You can also run a return line from the catch tank if you want. Just run it to the stock pvc nipple on the manifold. In this case put the one way valve in that hose facing towards the manifold. This is the way I have my car set up. Blowby exits the side nipple of the filler neck and goes to my catch tank, which is mounted on the back of my vertically mounted radiator. I have a return line going back to the upper intake manifold in case the catch tank gets overfilled before I have a chance to empty it.
Cap the bottom nipple comming out of the oil filler neck. Mount a catch tank somehwere, preferably not too low in the engine bay. Run a hose from the side nipple of the oil filler neck to the top of the catch tank. You can splice in a pcv or other check valve into there (make sure its allows flow towards the tank. Also cap the nipple on the upper intake manifold where the pvc originally ran to. You can also run a return line from the catch tank if you want. Just run it to the stock pvc nipple on the manifold. In this case put the one way valve in that hose facing towards the manifold. This is the way I have my car set up. Blowby exits the side nipple of the filler neck and goes to my catch tank, which is mounted on the back of my vertically mounted radiator. I have a return line going back to the upper intake manifold in case the catch tank gets overfilled before I have a chance to empty it.
Rotary Experiment Seven, got any pics of your car? I noticed that you painted your car Porsche silver w/ blue etc. I love that color.
~ J
09-10-03, 02:31 AM
#7
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Mazda re-mans leak from the front cover because they paint the housings. This prevents a good seal with the front cover. My mechanic removes the front cover and paint when he deals with a re-man.
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09-10-03, 03:11 PM
#8
RX-7 Bad Ass
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http://www.volvospeed.com/Reviews/jazbreather.htm
This is one I've used in the past. Works VERY well. The filter on the top allows the can to breathe, so you don't pressurize the crankcase. It has two inlet nipples, so you can hook both the crankcase connections up to it. The drain at the bottom allows you to easily drain out the oil blowby every now and again, and you can attach a drain line so it will drain down nice and tidy.
Jeg's carries it - it's around $40 or so. Very well-built and small - I think it's designed for karts.
Dale
This is one I've used in the past. Works VERY well. The filter on the top allows the can to breathe, so you don't pressurize the crankcase. It has two inlet nipples, so you can hook both the crankcase connections up to it. The drain at the bottom allows you to easily drain out the oil blowby every now and again, and you can attach a drain line so it will drain down nice and tidy.
Jeg's carries it - it's around $40 or so. Very well-built and small - I think it's designed for karts.
Dale
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