300 tdi inlet manifold cleaning

[trev892]

I,m in the process of making the 300 running like a dream, i'm up to 36 mpg on a good run, with EGR blanked, K&N air filter

fitted, the viscous fan is off at the moment and iv'e fitted Hyclones to it as well ,and yes there is a slight increase of ready power, i have just washed out the Intercooler ,but the inlet manifold looks like an encrusted coal mine, from the build up of

fine oil from the turbo and old soot from the now blanked EGR ,is there any spray or alike that can be shot into the manifold without removing it cos at the moment i can't be asked to take it off.

The next project is to Decat it and a straight through centre section and finally to fit a Fuel Cat and i know they work, my old series 2a run on unleaded for 3 yrs and its still going 6 yrs on..can anyone help.

[Les Henson]

If you squirt anything in the manifold while it's fitted, then bear in mind it'll go into the engine. You might be able to spray carb cleaner in it while the engine is running, but on a diesel it'll make the engine clatter like mad as it'll cause it to detonate. I'd take it off and do it if I were you.

Les.

[trev892]

If you squirt anything in the manifold while it's fitted, then bear in mind it'll go into the engine. You might be able to spray carb cleaner in it while the engine is running, but on a diesel it'll make the engine clatter like mad as it'll cause it to detonate. I'd take it off and do it if I were you.

Les.

Thanks Les yep iv'e had a good hard think and i will remove the manifold thats an awful lot of carbon being sucked into the bores who knows if it will ever get out of the valve seats without being trapped.