Blue Smoke

[Botters]

This morning i started the car and a whole lot of blue smoke came out the exhaust pipe on takeoff???

[CRACKD]

Seems that your engine has suffered cracked ring lands, time for a rebuild if you were going to upgrade the engine now is the time

CRACKD

[nik33gtst]

you have blown piston rings or maybe even a cracked piston.

get it to your mechanic very soon.

[nik33gtst]

it happend to my mates suby

[Botters]

U guys serious???

Will this happen on every start up???

How is this problem created??? This makes me really sad. ive only had the car for 3weeks now:(

[OZ_Pomy]

could also be shagged turbo seal

[CRACKD]

If the smoke is worse only when it is cold then im 99% sure its your pistons, it will get worse and worse until it lets go

[ToF]

Find out where it's burning oil from before you make any crazy assumptions.

Leakdown test will tell you?

[PSI_GTSII]

Normally its the Valve stem seals that are stuffed when you start the car and it blows blue smoke.

If the seal is stuffed around the valve then overnight or over a period of time oil leaks down on top of the Piston creating a nice pool of oil for the morning when you start it up hence the puff of blue smoke.

However the oil leak is not enough to notice once that initial oil has burnt, and you wont notice any blue smoke when you drive.....until you leave it turned off for a long enough period and the oil builds up again.

[Botters]

So what sort of price figures am i looking at to get this problem fixed?

Is it costly $$$

[PSI_GTSII]

If it is your valve stem seals this would be the cheapest fix of all the Oil burning related engine problems

The valve stem seals themselves are only a few dollars, but its still fairly time consuming removing and replacing them all.

Best Guess $400.....?

[ToF]

Normally its the Valve stem seals that are stuffed when you start the car and it blows blue smoke.

If the seal is stuffed around the valve then overnight or over a period of time oil leaks down on top of the Piston creating a nice pool of oil for the morning when you start it up hence the puff of blue smoke.

However the oil leak is not enough to notice once that initial oil has burnt, and you wont notice any blue smoke when you drive.....until you leave it turned off for a long enough period and the oil builds up again.

Interesting you say that and it makes sense.

I *think* my RB20 is reasonably healthy given it's still running and nothings changed while I've been giving it a hard time. But I do remember not using it for about a month or so a while back and when I went to start it and this huge puff of blue smoke came out on start up. But since then I have yet to see a mist of blue smoke, I'll assume it's because I drive it at more regular intervals now.

[sinistaGTR]

hey pull your spark plugs out have a look and see if there is any oil on top of the piston (screwdriver and a rag), or get yaself a compression tester from super cheap there like 30 bucks (or get your mech to do it if your unsure) and check the compression.

[mathewg2509]

Have you checked the headlight fluid..............

[MerlinTheHapyPig]

do a compression test. This is the easiest way of determining what's wrong.

If it's lower than 120psi or if it's very low in one cylinder, put about 10ml of oil in each cylinder and do the test again.

-if the compression is good (all above 120psi and no more than 15psi variation between cylinders) then i'd say it's the turbo seals

-if the compression rises on the second test it's definantly rings or pistons

-if the compression doesn't rise on the second test, then it's valve related (or could also be the head gasket), i'd say stem seals most likely.

[Botters]

Guys i started the car this morning, so its been sitting there the same amount of time last night if not longer. And there wasnt a trace of blue smoke on start up, but just a bit of blackish smoke when i got my g/f to rev it up a bit

[Botters]

Could it have just been a freakish once off thing, or my mate who told me it was blue is just colour blind???

[Botters]

Also what is Headlight fluid??? I have never heard of it before, where do i check it??? What does it look like???

[sinistaGTR]

bit like indicator fluid.....hahahahaha

[Jago]

So what sort of price figures am i looking at to get this problem fixed?

Is it costly $$$

dunno bout subaru, but i got quoted $289 for a set of RB20 valve stem seals from nissan