PaulDaisy

Recently when engaging the e-brake the truck started hissing. When e-brake engaged I felt a stream of exhaust gas from the clamped connection of the downpipe to the turbo elbow. I tried to retighten it yesterday but only made it worse. Does anyone have a good sequence for doing this? It is very hard to see anything down there and there is no seal of any sort, so how do you align the pipes well so they don't leak?
Thanks!
-P

Dinner

Is this with a stock turbo and downpipe, or aftermarket downpipe and/or turbo?

If they are the stock HX35 and stock downpipe, the best thing would be to remove them from each other, clean the downpipe and elbow socket, then re assemble. If you have an aftermarket turbo and downpipe (assuming it's a 4" HX40 style connection), remove clamp, clean both faces, re-position using your fingers to feel that all sides are equal amount and re fasten with the clamp.

PaulDaisy

It is a stock setup.
Ok, I will try to take them apart, then reassemble while disconnected from turbo, then try to connect to the turbo. If misaligned will do over again.
Pain in the rear! I wish there was a flange there with a normal hi temp seal...

PaulDaisy

Ok, I have a solution.
No matter how much I tried to make the connection leak tight, did not work. So I decided a gasket is needed. The surfaces there are cone-shaped, so the gasket needs to be half moon shaped. A bit of measuring and math and the needed radii were calculated.
I used 1/32" hi temp gasket material. I cut a strip 3/4" wide, using 5.75" as the internal radius and 6.5" as the outer radius. Length is about 11", but make it longer then cut to size. I made a mistake of cutting the ends straight; it would be best to make them interlock like a jigsaw puzzle.
So now it is all tight, no leaks or even hisses. I may order some real exhaust gasket material and re-make it so that the ends interlock, that would be better.
Hope this helps someone!
-P

Dinner

Glad to here you got it fixed! Hissing and other noises can be annoying,lol