Inlet manifold sludge and EGR

[mikeonb4c]

Thanks Veg

I was being hypothetical - I havent looked over my Mango yet. All that is to come when I start fettling her. What a great sight this is. How else would a newcomer get genned up so well on looking after this unusual and wonderful vehicle.

Mike

[Veg_Ian]

I've done a similar modification several times for customers vehicles, but I use two laser cut Blanking Plates.
They blank the EGR off at both ends.

Hi Allans. Could you elaborate more on the blanking plates please? I've made them myself in the past for a Toyota but that was relatively easy as they bolted into place. The Bongo's EGR pipes have screw fittings rather like a plumbing compression joint so how do you fix it in place?

[RobnKathryn]

It's about time this thread received a pic of inlet manifold sludge, so voila!




Whilst replacing my cylinder head, I cleaned out my inlet manifold and disabled the EGR as follows:
1. Using Ian's bolt in the pipe approach.
2. Using the Russian method; although I blanked the end of the EGR pipe where it joins the inlet manifold union. I found that a 20 Euro cents coin which was rattling about in the footwell of the van was a perfect substitute for the 2 Roubles coin.

Interesting to note, that the guy who transferred the valves and camshaft from the old cracked head to the new one, found that the inlet valve integrity was dreadful and so replaced the inlet valves. Perhaps this is a result of all the sludge going into the head?

The van runs beautifully now, but because I've replaced so much it's impossible to attribute the improvement purely to the EGR disablement.

[dandywarhol]

Jeeebus........I've never seen as much sludge as that in an inlet manifold