Cleaning Engine

[FarmerPug]

I have read about the MAF and inlet manifold filling with gunk but since i dont know what these are where do i actually look.

[Welly]

The inlet manifold is tucked away at the back of the engine behind the rocker cover, it's a kinda square-section header and has a connection port from the EGR valve too.

Because of the helpful [sic] way the engine leans backwards then getting to the IM would be challenging, you'd need all new gaskets, I'd actually change the EGR for a new one, the solid recirc tube from the EGR is very difficult to seal properly and only a pressure-smoke test will tell if you've done it properly - the tube has sort of swaged/ball end fittings with a U-clamp but they're crap.

I wouldn't bother trying to de-coke like this if the car's running well anyway......not unless you're fanatical and have a lot of time on your hands, and would like to take lots of pictures of the process for the benefit of the club....oh hang on...

[FarmerPug]

and what about the MAF

[Welly]

The MAF is the bit just behind the Air Filter box with the 65mm?? air hose connection, you can unplug it and *very* carefully clean the sensor tips with carb cleaner or similar (I used to use a cotton bud dipped in petrol ).

At worse you'd get a little bit of blackish residue off the thing and perhaps the impression that the car feels more responsive after.

[FarmerPug]

ah the impression, the same as the impression everyone got when they unplugged the egr valve.

[Doggy]

Psychological tuning - you can persuade yourself lots of things work better, if you're minded to.

[Welly]

Psychological tuning - you can persuade yourself lots of things work better, if you're minded to.

Yeah, I've read somewhere of a guy who believes his HDi puts out a stonking 180 bhp with nothing more than a hammer, some leads, a lap top and a file sent via e-mail

[Doggy]

80-100 in 5th 9.7 sec.
Fact.

[FarmerPug]

has that fact been verified on a rolling road.