Oil leak at High RPM

MX3driver · Post by **MX3driver** » September 18th, 2005, 6:05 pm

hey everyone.. I'm brand new to my new brilliant black 95 MX3.. I love it. Just wondering why I can smell a VERY little bit of oil at higher RPM's.. when you are easy on the throttle.. no smell at all.. and it NEVER burns that famous blue smoke.. anyone have a fix or any idea what it is.. thanks alot everyone
Craig

MX3driver · Post by **MX3driver** » September 27th, 2005, 11:42 pm

Any Idea's anyone.. open to pretty much any hints..right or wrong.. haha. basically troubleshooting

freyguy_412 · Post by **freyguy_412** » September 28th, 2005, 1:09 am

The only thing that comes to mind would be the PCV valve, but I've never experienced the symptom you describe. Total shot in the dark. Pull the pcv valve out, pull it off the vacume line and shake it. You should hear it rattle back and forth a lil bit. Also check the dipstick when the car is running, maybe even after you've reved it up a bit. If you get any kind of smoke out of that pipe where your dipstick is, replace the PCV valve.

Mazda_Power · Post by **Mazda_Power** » September 28th, 2005, 10:47 am

freyguy_412 wrote:The only thing that comes to mind would be the PCV valve, but I've never experienced the symptom you describe. Total shot in the dark. Pull the pcv valve out, pull it off the vacume line and shake it. You should hear it rattle back and forth a lil bit. Also check the dipstick when the car is running, maybe even after you've reved it up a bit. If you get any kind of smoke out of that pipe where your dipstick is, replace the PCV valve.

The PCV valve acts as a check valve. Suck on it and see if it only allows air one way. (MMMMM isn't oil tasty!) Next the oil pump on any car (as long as it's mechanical) will increase oil pressure as RPMS rise. So the higher your RPMs are the more likely you are to leak oil. Furthermore, I'd say that maybe your valve seals are bad. How many miles on your motor? Have you ever done a comrpession test?

MX3driver · Post by **MX3driver** » September 28th, 2005, 1:49 pm

Just got the car about 2 weeks ago.. so I havn't done a compression test on it yet.. and it's got around 278,000kms.. alot i know, but runs amazing.. minus the high RPM oil burn!!
KEEP THE IDEAS COMING!

Typhoonk · Post by **Typhoonk** » September 28th, 2005, 4:07 pm

so you smell it in your car when idling, or when driving?
cause it could just be an exhaust leak that's being sucked into your
cabin via the vent. do you have a layer of film on your windsheild? wipe with a cloth and see

MX3driver · Post by **MX3driver** » September 28th, 2005, 5:23 pm

s---.. never thought of that.. but if you give it really high rpm.. 7grand or so. it'll shoot a little blue smoke..
so i don't think it's that.. but im gonna check anyways
keep em comin'

Mazda_Power · Post by **Mazda_Power** » September 28th, 2005, 7:57 pm

7K? My B6 will only rev to 6550 then it hits fuel cut.

MX3driver · Post by **MX3driver** » September 28th, 2005, 8:37 pm

yeah mine will hit 7500 before fuel cut..

Mazda_Power · Post by **Mazda_Power** » September 29th, 2005, 12:06 am

Sure it isn't a V6? Seems odd, maybe there's something I don't know.

MX3driver · Post by **MX3driver** » September 29th, 2005, 3:00 pm

Nope... 16valve dohc.. only thing on it i can see is the cold air intake.. nothing special.. I don't know if the guy that had it before me did something special or not..there definately isn't anything visually standing out done to the engine

Mazda_Power · Post by **Mazda_Power** » September 29th, 2005, 3:44 pm

Wow... must be a '95 RS thing.