[GTR CRAZY]

Hi all just wondered if anybody could help,ive got a 1992 r32 gtr and havin a slight problem,the car runs fine and boosts fully but when i let off i get a white smoke from the exhaust then a second or two later it stops and only happens on full boost,a friend told me is probrably a seal on the turbo thats gone just thought id get a second opinion cheers craig

 

[Poirot]

turbo seals normally, valve seals maybe

 

[GTR CRAZY]

cheers

just glad its nothing major,have you any idea how much it would be to fix?

 

[Poirot]

depends which it is and depends how you go about replacing the parts (and where you get them from!)

if its the turbos you could buy second hand stock ones for about 250 or rebuild yours to steel internals for £900 or go for uprated jobbies £1000-2000 plus labour

 

[C-N]

Hi all just wondered if anybody could help,ive got a 1992 r32 gtr and havin a slight problem,the car runs fine and boosts fully but when i let off i get a white smoke from the exhaust then a second or two later it stops and only happens on full boost,a friend told me is probrably a seal on the turbo thats gone just thought id get a second opinion cheers craig

Please don't get alarmed but white smoke is not normally oil related see below.

White smoke normally means it is burning/evaporating water common cause head gasket, cracked head etc.

Grey/Blue smoke = oil common causes cracked pistons around oil control rings, worn engine, worn valve seals, worn turbo etc.

Black = fuel common cause over fueling

I would have someone follow you just to be sure what colour the smoke is & investigate from there.

Over fueling on overrun is not really a problem & a puff of blue smoke isn't really to bad either considering the age of the engine but if the head gasket is on the way out then I would be a little concerned & be planing to get it done asap.

Early signs of head gasket failure will usually show up as contamination/sludge in the rocker cover & breather system as well as the rad & expansion tank.

Worn or damaged engine/pistons would normally make the car breath heavily from the oil filler in other words you would have a fair bit of air escaping from the oil filler hole if you took it off with the engine running.

Blue smoke from worn valve stems & seals normally show up either at initial startup or on overrun.

Worn turbo/turbo's normally blue smokes on boost & leave lots of oil in the intake pipe work.

 

[GTR CRAZY]

Thanks

Thanks for all the info guys think im going to take it to the local specialist and let them have a look at it just hope its nothing major ive only just spent about £1500 on it so will have to do some overtime to get her back on the road lol thanks again craig

 

[Poirot]

Please don't get alarmed but white smoke is not normally oil related see below.

White smoke normally means it is burning/evaporating water common cause head gasket, cracked head etc.

Grey/Blue smoke = oil common causes cracked pistons around oil control rings, worn engine, worn valve seals, worn turbo etc.

Black = fuel common cause over fueling

I would have someone follow you just to be sure what colour the smoke is & investigate from there.

Over fueling on overrun is not really a problem & a puff of blue smoke isn't really to bad either considering the age of the engine but if the head gasket is on the way out then I would be a little concerned & be planing to get it done asap.

Early signs of head gasket failure will usually show up as contamination/sludge in the rocker cover & breather system as well as the rad & expansion tank.

Worn or damaged engine/pistons would normally make the car breath heavily from the oil filler in other words you would have a fair bit of air escaping from the oil filler hole if you took it off with the engine running.

Blue smoke from worn valve stems & seals normally show up either at initial startup or on overrun.

Worn turbo/turbo's normally blue smokes on boost & leave lots of oil in the intake pipe work.

oil that drips into the exhaust post combustion can be white (also refered to as grey)

head gasketts dont leak on just full boost