smoke from dump valve
#1
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smoke from dump valve
now this happens now and again under full boost,, i removed my intercooler pipe and there is quite alot of oil in there, i have checked the turbo (vf34) and has no shaft play what so ever, im in the middle of fitteing a catch can but am unsure of what the problem is, can anyone please help.... the car runs fine like always..
ross wilson
ross wilson
#2
Is your sump oil level too high? That's one common cause of significant amounts of venting.
Unfortunately the other potential cause is piston/ring wear/damage - and that's something you need to evaluate and rule in/out pretty quick, as the sooner you catch it the cheaper the fix will be.
If your oil level is above the full level when hot, drain some and see if that that fixes the problem. Probably also worth checking for indirect signs of internal damage. Compression test would be the obvious next move.
Unfortunately the other potential cause is piston/ring wear/damage - and that's something you need to evaluate and rule in/out pretty quick, as the sooner you catch it the cheaper the fix will be.
If your oil level is above the full level when hot, drain some and see if that that fixes the problem. Probably also worth checking for indirect signs of internal damage. Compression test would be the obvious next move.
#5
Hi i'm getting oil spray out of my dump valve on my 01 bugeye, took oil cap off and put hand over hole and popped the throttle and there was no pressure under my hand..
i topped up the oil 3 weeks ago and today the oil light came on and i checked the oil and it wasn't even registering on the dipstick.. oil is in my air pipe.. any help much appreciated. Glenn
i topped up the oil 3 weeks ago and today the oil light came on and i checked the oil and it wasn't even registering on the dipstick.. oil is in my air pipe.. any help much appreciated. Glenn
#6
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Hi i'm getting oil spray out of my dump valve on my 01 bugeye, took oil cap off and put hand over hole and popped the throttle and there was no pressure under my hand..
i topped up the oil 3 weeks ago and today the oil light came on and i checked the oil and it wasn't even registering on the dipstick.. oil is in my air pipe.. any help much appreciated. Glenn
i topped up the oil 3 weeks ago and today the oil light came on and i checked the oil and it wasn't even registering on the dipstick.. oil is in my air pipe.. any help much appreciated. Glenn
How many miles have you done in the 3 weeks?
Even if that oil loss wasn't down to an engine issue, running around with the low pressure light on is sure to kill it off.
Oil levels need checking as often as you can.
#7
Hi i'm getting oil spray out of my dump valve on my 01 bugeye, took oil cap off and put hand over hole and popped the throttle and there was no pressure under my hand..
i topped up the oil 3 weeks ago and today the oil light came on and i checked the oil and it wasn't even registering on the dipstick.. oil is in my air pipe.. any help much appreciated. Glenn
i topped up the oil 3 weeks ago and today the oil light came on and i checked the oil and it wasn't even registering on the dipstick.. oil is in my air pipe.. any help much appreciated. Glenn
Only advice is as per the previous poster. Do a compression test and let the results guide your next move.
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#8
cheers guys done about 500 miles..
So how do you do a compression test, have put hand over oil cap and revved the car and the pressure hardly changes.. since my last post the car has rud down to alost nothing again and smoke blow out the exhaust and from the engine.. bloody car.. could the turbo seals have gone pushing the oil through the intercooler and into the head.?
So how do you do a compression test, have put hand over oil cap and revved the car and the pressure hardly changes.. since my last post the car has rud down to alost nothing again and smoke blow out the exhaust and from the engine.. bloody car.. could the turbo seals have gone pushing the oil through the intercooler and into the head.?
#9
It is most unlikely that oil loss of the magnitude you seem to be describing would be coming from the compressor end turbo seal - which is where it'd need to be emerging to find its way into the intercooler.
You do a compression test either by taking it to your local garage/specialist and having them do it, or else buying a compression gauge and then checking on here for the specific details of how to do it on an Impreza. Given the way you're describing the symptoms at the moment, the best thing you can do would probably be to get the car in front of a specialist as soon as you possibly can and letting them diagnose it for you.
You do a compression test either by taking it to your local garage/specialist and having them do it, or else buying a compression gauge and then checking on here for the specific details of how to do it on an Impreza. Given the way you're describing the symptoms at the moment, the best thing you can do would probably be to get the car in front of a specialist as soon as you possibly can and letting them diagnose it for you.
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