Smoke on cold start
Moderator: RichardW
Smoke on cold start
This is a continuation of the blown turbo saga.It revved it's rolo's off blew smoke and oil everywhere.Wouldn't switch off and frightened everybody over a ten mile radius.I changed the turbo.(off a Peugeot 406 but does fit eventually.The problem I have now is that although the car has more guts pointing that the original turbo was pretty much shot anyhow it smokes on a cold start.Soon after starting the smoke disappears and the engine ticks over like a sewing machine.Starting is not a problem but it does knock like blazes unless you rev it to clear the smoke.Has anybody had the same problem and is it a game of patience waiting for it to burn off the oil that seems to have got everywhere.
Usual smokey start causes are defective glowplugs or air in the fuel.
What colour is the smoke? White - unburnt fuel - glowplugs or air
Blue - lubricating oil
Black - partially burnt fuel - excessive fuel or timing.
The heavy knock you describe can be due to overfuelling - something like 1 1/2 charges in a cylinder - ie some left over from a previous injection stroke - or from another source like easystart (ether)
Have you cleaned the intercooler - in which case did you use a solvent and how far has the car been driven? If for example you used petrol you'll find it very difficult to get it all out - compressed air from an airline would probably find a path through part of it and not reach the rest. Petrol drawn from the intercooler after cleaning would cause overfuelling.
What colour is the smoke? White - unburnt fuel - glowplugs or air
Blue - lubricating oil
Black - partially burnt fuel - excessive fuel or timing.
The heavy knock you describe can be due to overfuelling - something like 1 1/2 charges in a cylinder - ie some left over from a previous injection stroke - or from another source like easystart (ether)
Have you cleaned the intercooler - in which case did you use a solvent and how far has the car been driven? If for example you used petrol you'll find it very difficult to get it all out - compressed air from an airline would probably find a path through part of it and not reach the rest. Petrol drawn from the intercooler after cleaning would cause overfuelling.
jeremy