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Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: Gman on January 21, 2006, 03:30:56 PM

Title: Can an oil leak from the sump cause......
Post by: Gman on January 21, 2006, 03:30:56 PM
Smoke coming through the bonnet vents after a thrash?

After a bit of a fast drive i pulled over after i smelt somthing hot and oily, there were some wisps of smoke coming out of the bonnet.  Would it vent unwards from the sump? i thought it would disapate(sp) under the car not go upwards.
Title: Can an oil leak from the sump cause......
Post by: bnaellis on January 21, 2006, 03:45:16 PM
Quote from: GmanSmoke coming through the bonnet vents after a thrash?

After a bit of a fast drive i pulled over after i smelt somthing hot and oily, there were some wisps of smoke coming out of the bonnet.  Would it vent unwards from the sump? i thought it would disapate(sp) under the car not go upwards.

Not unless it\'s hitting the hotside of the trubo, manifold, or exhaust system.
Lot\'s of oil leaks around the sump gets swept onto the exhaust system due to airflow underneath the car.
Title: Can an oil leak from the sump cause......
Post by: robedwards99 on January 21, 2006, 04:56:16 PM
Check where your boost pipe goes into the top of the turbo... I had a dickie one and a little residual oil was leaking onto the housing and sending smoke signals.

HTH.

Rob.
Title: Can an oil leak from the sump cause......
Post by: Gman on January 21, 2006, 05:16:13 PM
Is that easy to find/get to?

I will have a look through my manual CD.
Title: Can an oil leak from the sump cause......
Post by: Martiny on January 21, 2006, 08:29:05 PM
Could also be the pipes that drain the oil from the turbos, there is a little gasket in there.

My car had leaking valves on the oil injectors and the top of the housing would fill up with oil then run down onto the exhaust.
Title: Can an oil leak from the sump cause......
Post by: Gman on January 21, 2006, 08:37:03 PM
Is it obvious if these pipes are leaking? or are they normally a bit moist.
Title: Can an oil leak from the sump cause......
Post by: Brett on January 21, 2006, 08:47:34 PM
Didnt Miguel have a similar problem a few months back?
Title: Can an oil leak from the sump cause......
Post by: Martiny on January 21, 2006, 09:29:15 PM
Gman you cant see the injectors leaking - you have to look with a torch and look at the top of the housings above the turbos.

To see if its the return pipes from the turbos, as GLen says, you will need to clean everything and then go for a short drive,and then get underneath, or even get underneath with it idling ( mind that exhaust! )
Title: Can an oil leak from the sump cause......
Post by: Gman on January 21, 2006, 10:07:20 PM
Better get my big torch out, just saw some Cillet Bang degreaser on the TV so may have to nip to Tescos also :rollin
Title: Can an oil leak from the sump cause......
Post by: steverx7 on January 23, 2006, 06:21:06 PM
im having same problem oily smoke coming up the bulkhead and out of the bonnet posted this before even from a cold start goes into garage thursday to have checked out im hoping its a exhaust seal or something would this make it smoke from around the clutch housung area of the bulkhead
its not the clutch i cannot see no oil anywere it does not lose oil so i will have to wait till thurday ill let you no when the poblem is found ,
i was just going to post that i have just had the bodywork done got it back today now i have to wait until thursday for the oily smell
i wont sleep until then.
mine also smokes when still so dont think its the sump
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