hey everyone, sorry i know i havent been around much..between work and my rx7..anyways, i finally got my rx7 running with a used motor..it has many problems but aside from the ones i can fix..i was smelling like something burning..checked my oil for ***** and giggles..was a quart low and looked ok..then wen i went to add some i saw a white, mustard looking substance down my oil fill plug and on my cap..im not in a rush to get my car on the road due to money i dont have, but i will be soon...so if anyone can help me it would be greatly appretiated..thanks

 

Somebody loved their car just a lil too much? (I did NOT just say that...)

I think I've heard this is symptomatic of PCV problems - - cracnkcase not getting ventilated. It's sure-enough disgusting looking.

 

Ahhh.....The lovely "lung butter". You definantly have a PCV issue. Search the archives for "lung mustard" or "lung butter".

 

Run a rubber hose from the nipple on the oil filler tube to one of the nipples at the base of the carb... Most say you need a pcv valve inline to do this, but I'm a rebel. I have never used one, and haven't had any issues. So, choose your poison....




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it must be pretty cold out there...it mostly occurs in cold weather....

 

I didn't want to deal with a PCV system since I've got a Weber that will soon have boost blowing through it, so instead I just used a oil filler tube cap with a hole drilled in it that Jeff20B had laying around. It worked; the lung butter is gone.

 

thanks everyone for the suggestions..do u think it will go away if i use a breather where the oil cap goes? but im going to try wat u all said, probably wat kentetsu said since its easier..thanks again

 

The quick fix is to drill a 1/4" hole in your oil cap. Even a breather has restriction. The hole has zero. That's why it works.

Your purge valve might be having issues. Only '80 and older had a real PCV valve.

 

cool..well ill try a couple things u guys told me about..hopefully i didnt damage anything , thanks all