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Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: Tim D on August 01, 2024, 11:31:35 am

Title: Massive exhaust leak
Post by: Tim D on August 01, 2024, 11:31:35 am
Hey all, I appreciate your guidance here!

I have a pretty massive exhaust leak (after the turbo and after the exhaust break (pac break). The area with the full crack/separation is circled in red, and the remaining exhaust line has a lot of play in it as well.

First noticed a strong exhaust smell in the bedroom, and have had a lack of power/turbo pressure. I'm thinking this is the culprit for both

I'm pretty confident I can do the work to replace it, but wondering where I should source the line (and if you have any idea on what the part name/number would be) for that on short notice - we're supposed to be leaving in a few days for a short trip.

Thanks for your help!

Title: Re: Massive exhaust leak
Post by: craneman on August 01, 2024, 11:37:09 am
I don't know your exhaust pipe size (different engine than mine) but this should start you on the right path.

6" Flex Exhaust Hose Pipes | FLEX EXHAUST HOSE 6" (https://www.truckpipesusa.com/categories/6-exhaust-pipes/6-flex-exhaust-hose.html?srsltid=AfmBOoprhfFJJtW1HJpDqi1t9w11LSuwYMCEkowHQ3r4-9AvhBo9VEEH)
Title: Re: Massive exhaust leak
Post by: wolfe10 on August 01, 2024, 11:42:11 am
Is the flex hose broken or has the clamp broken and the flex hose needs to be reattached (with new clamps)?
Title: Re: Massive exhaust leak
Post by: Tim D on August 01, 2024, 11:57:32 am
Is the flex hose broken or has the clamp broken and the flex hose needs to be reattached (with new clamps)?

The flex hose is broken off about 2" above the clamp. Looks completely broken through.
Title: Re: Massive exhaust leak
Post by: wolfe10 on August 01, 2024, 11:59:43 am
That is an easy replace.  New flex hose (see Craneman's link above) and new hose clamps at each end.
Title: Re: Massive exhaust leak
Post by: John44 on August 01, 2024, 12:04:00 pm
If you can get the stainless flex,will not rust like yours.
Title: Re: Massive exhaust leak
Post by: Tim D on August 01, 2024, 12:30:24 pm
Thanks everyone. New parts ordered and I will be installing tomorrow. I figured this would be simple, but didn't know where to start. I appreciate your help!
Title: Re: Massive exhaust leak
Post by: Chuck & Jeannie on August 01, 2024, 03:13:11 pm
I have a pretty massive exhaust leak (after the turbo and after the exhaust break (pac break).
First noticed a strong exhaust smell in the bedroom, and have had a lack of power/turbo pressure.
A broken exhaust pipe could certainly contribute to a "strong exhaust smell in the bedroom".

However, a break downstream of the turbo and exhaust brake would not have any deleterious effect on "power/turbo pressure"...it might even be beneficial (especially if the OEM muffler was plugged up with carbon).

You will need to look elsewhere for the cause of that symptom.

Title: Re: Massive exhaust leak
Post by: oldguy on August 01, 2024, 04:17:57 pm
As John44 said use stainless as the non stainless won't last long.