Black Smoke on hard accelleration or under load

[HarryM1BYT]

Originally Posted by rovertone

Thanks Brian,
I'll have a feel under the pipe tomorrow although it all seems generally dry around the joints.
It's a while back now but Terry at TS autos fitted viton rings to the intercooler hose (adding a 3rd) after I found a Spanish garage had thrown it back together after fitting a new rad. He (Terry) commented that the intercooler hose, whilst intact, was quite soft, I assumed that it was probably silicone but am now wondering whether that's distorting.

Tony

If its black and soft /rubbery, it will be the original hose which tend to swell and become porous, so worth changing for a modern, shiny silicone version.

The other thing you didn't mention trying, is injector cleaner. Take the fuel filter off, half fill with injector cleaner, refit, start and run the engine for a few seconds, then leave it to work on the injectors over night.