Coolant in oil maybe?
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Coolant in oil maybe?
On my '80 race car ('85 12A engine) I open up the oil filler cap after the sucker has been running for a few minutes, and pressure lets out after I loosen it. I look on the cap and there's a slight amount of white foam-like stuff on it. I'm GUESSING this is coolant boiling? Or water maybe?
If so, what could be the problem?
If so, what could be the problem?
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I agree with nimrod - do you have a line going from the base of the oil filler neck to the air cleaner? if not, run one. If you've removed your rat's nest (which I'm assuming so), then you'll have removed the line that vents the crankcase vapours, and you'll need to add one to get rid of the condensation. I had the same problem you described, so I tried just running a line to the side of the air filter canister, and it fixed the problem right away.
Jeff
Jeff
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#8
Driven a turbo FB lately?
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Originally posted by peejay
Nearly impossible to get coolant in the oil... it's condensation, not coolant.
Nearly impossible to get coolant in the oil... it's condensation, not coolant.
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Dumb question on this tpoic - does a Mazda type rotary use a PCV? I know there's no crank case per se, but what do they do to allow ventalation and combustion of oil fumes, other than that allowed into the combustion chamber to lube the seals?
#10
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They have a setup that incorporates the PCV with the carburetor bowl vents and the charcoal canister. It typically doesn't not work worth a damn.
#15
Old [Sch|F]ool
well, yeah However if your car no longer has emissions equipment then it's trivial to rig up something that not only works, but works better than factory.
find a big vacuum nipple on the intake manifold that sees vacuum all the time. on '81-85 manifolds there is a perfect one that is above the #2 rotor. run a hose from that to the threaded end (it's a tight squeeze but it will go over) of a Mitsubishi PCV valve (for a random vehicle, get one for, say, a '92 Dodge Caravan with the 3.0l V6), then run a hose from the other end of the PCV valve to the nipple on the OIL FILLER TUBE. Then, run a hose from the nipple on the CENTER HOUSING to the filtered side of the air cleaner assembly. It is important that it's the oil filler tube that sees the vacuum from the PCV valve because it's the one that doesn't have oil splashing up against it.
That's how i did it to my '83 12A. I'm sure that a GSL-SE would be similar, the only difference being, of course, finding an approprate nipple to hook to the PCV valve, and then routing the breather side to the throttle body duct.
find a big vacuum nipple on the intake manifold that sees vacuum all the time. on '81-85 manifolds there is a perfect one that is above the #2 rotor. run a hose from that to the threaded end (it's a tight squeeze but it will go over) of a Mitsubishi PCV valve (for a random vehicle, get one for, say, a '92 Dodge Caravan with the 3.0l V6), then run a hose from the other end of the PCV valve to the nipple on the OIL FILLER TUBE. Then, run a hose from the nipple on the CENTER HOUSING to the filtered side of the air cleaner assembly. It is important that it's the oil filler tube that sees the vacuum from the PCV valve because it's the one that doesn't have oil splashing up against it.
That's how i did it to my '83 12A. I'm sure that a GSL-SE would be similar, the only difference being, of course, finding an approprate nipple to hook to the PCV valve, and then routing the breather side to the throttle body duct.
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#19
Driven a turbo FB lately?
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Originally posted by peejay
Dunno. Something similar.
Dunno. Something similar.
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What is this "crap" its burning? Is it help the engine to burn it, or did mazda just make the engine burn it for fun?
If it dosent help to burn the crap, then why not just use a breather thing? (other than saving yourself the embarassment of buying the rice...)
If it dosent help to burn the crap, then why not just use a breather thing? (other than saving yourself the embarassment of buying the rice...)
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