wah

Have just got back from a RR day and on the way back it's decided to start throwingn clouds of white smoke out of the zorst and it's running like its only on 3 cylinders I had the MAP sensor changed today as well anybody any ideas on what it could be ( Please be gentle )


Si

Darbo_wrx

Headgasket? more than likely

or smelted a piston possibly
at the rr sesion i take it was for a power run only if so the problem sounds like bad luck
im no turbo specialist (im learning though) but the problems you have sound mechanical failure wether its map sensor being changed that caused it i wouldnt know
bob rawle or sombody like that would i guess

wah

if it was headgasket wouldn't the be mayo **** on the filler cap ??

Darbo_wrx

not if its only just gone
depends also where the breach is if its not gone into the oil gallery then itll take a while to get into the oil

whip your plugs out and see if 1 has been steam washed costs nothing
if 1 is totally different colour to the rest then you know somthings up
misfire i would normally say change plugs first as cheap option but the white smoke you mention kinda pushes you into looking for a mechanical failure

if all plugs look same then take it for a good thrash and kill it properly joke

Darbo_wrx

ps when it was chucking out the smoke the car was fully warm???

it is winter after all if cold it might have been natural vapour and the miss led you belive somthing was seriously up??

wah

Lol no mate it was warmed up ok not natural vapour, I will limp it back to Prosport on Monday and leave it with them at least I hit 328bhp before it went pear shaped lol

Darbo_wrx

ERM yea

would say you require uprated headgaskets and a arp head stud n nut kit

were abouts r prosport?

wah

ProSport
Unit 18, Battersea
Road Ind Estate Heaton
Mersey Stockport Sk4 3ea

willy

Wah what boost did you run at?
I think it may be turbo bearings that have over heated/failed.
If you are using a standard TD05H turbo then the bearings are pretty basic.
It may just need a recon with uprated 360 degree thrust bearings.(I think they are 270 degree as standard)

*****

wah

Hmmm thought that myself ***** oil pressure didn't drop it just started running real rough and the smoke from the zorst it was running before it went at 1.3bar I think

Red Rocket 11166

wah,

My classic did the same, had a compression test, No.2 piston melted.

Red.

buzzard

remove oilcap. with engine running do u see smoke puffing from pipe?
if so......piston.........rebuild.
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was that gentle?

Darbo_wrx

i can get you some std ej20 forged pistons best quality probly under £400

may be 10 days wait though from order

if thats your problem

Andrew

Trems

You cant really get white smoke, if its white its steam...no good dude.

As above it will probably be a headgasket, there are varying degrees or severety when it comes to gasket failure and with that sort of output on a std gasket you'll most likely find the fire-ring has gone on one of the cylinders. Either that or you've cracked the block!

Thing is with 300bhp+ you cant really expect std engines to cope without the appropriate modification.

Good luck with the rebuild tho...328bhp sounds nice!

-Paul

wah

Lol yeah it was nice whilst it lasted, took the oil filler cap off and it's chuging smoke out of it like thomas the tank !!!

Darbo_wrx

piston then do you think??

pistons £400
headgaskets £100
arp headstud n nut kit £110

if its cracked the block its gonna be expensive
if the engines in bits i would chuck in some forged steel rods while your on with it £400
then you can take it to 400 bhp

willy

Prosport will sort you out Wah...

Keep us informed..

*****

Trems

I wouldnt assume its a piston, hot oil will produce smoke even on a healthy engine when you open the filler cap, and a holed piston alone wont put white smoke out the exhaust, if anything it will be blue smoke due to oil.

Jamescsti

Had that with my STI V1, it had lost compression on 2 pistons, rebuild time I think

buzzard

[QUOTE=buzzard]remove oilcap. with engine running do u see smoke puffing from pipe?
if so......piston.........rebuild.
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.
.
.
.
was that gentle???!