Quote:
Originally Posted by Jeepboy79
Firstly, wanted to bump my prior post, ideas regarding my turbo having a slight oil leak.
Secondly, as a diesel, how much smoke is ok? I generally see quite a bit at night in the lights of the cars behind me. Especially on take off. I certainly wouldn't consider myself a lead foot but I'm trying to work out if there is anything I can do to minimise the smoking? It's an 06 with 70,000 on the clock. I'm waiting on a workshop manual to arrive to help me make my way around the engine but any tips would e greatly appreciated. I love this car, want to make sure it's running well.
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Is that 70 000 miles or kilometres ?
As long as the smoke is not blue white indicating oil dont worry, what u describe sounds about right.
black smoke that also looks bad in car lights at night is often just the unburnt fuel.
things to check with or without another tune, 1. is the engine temp ok, if like mine and many many others the thermostat goes and fails open and the diesel runs cooler than when new and in my humble the tend to be a bit cool anyway, this means in certain conditions the fuel is not completely burned. ie. fumes out the back. Two fixes, replace with standard thermostat or check lostkj site for moded thermostat, im trying to build a couple at the moment that will allow a choice of three standard tridon stats giving 180, 190 or 195 degrees choices.
2. get air into it, check air filter, check out the Gde tuning site it helps a lot, And make sure the boost pressure sensor MAP is clean as well the tune will help it stay clean too.
The fumes Never completely goes away, but you can improve it and have a little more fun while you are at it.
You shouldn't need much more than that to notice a difference for the better.
Let us know how u go with that.
Oh if u are worried about the oil leaks from the bottom of the turbo compressor, don't, they do that and it helps keep rust away. I have seen that reduced by putting in a catch can, though after the gde tune it seems to not quite need that.
If u have guages, boost pressure. and egt then consider monitoring it and I can tell u that on mine it did benefit quite a bit from a very small tweak of the wastegate actuator. Leave this for later consideration though there are a few things that can be done but just look at doing the first couple of items, chances are u wont need much else.