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Topic: Massive exhaust leak (Read 372 times) previous topic - next topic

Massive exhaust leak

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!

Tim and Dory

1992 U280 40'
2007 Jeep Wrangler toad

Re: Massive exhaust leak

Reply #1 –
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"
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Massive exhaust leak

Reply #2 –
Is the flex hose broken or has the clamp broken and the flex hose needs to be reattached (with new clamps)?
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Massive exhaust leak

Reply #3 –
Quote from: wolfe10 –
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.
Tim and Dory

1992 U280 40'
2007 Jeep Wrangler toad

Re: Massive exhaust leak

Reply #4 –
That is an easy replace.  New flex hose (see Craneman's link above) and new hose clamps at each end.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Massive exhaust leak

Reply #5 –
If you can get the stainless flex,will not rust like yours.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Massive exhaust leak

Reply #6 –
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!
Tim and Dory

1992 U280 40'
2007 Jeep Wrangler toad

Re: Massive exhaust leak

Reply #7 –
Quote from: Tim D –
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.

1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"
 

Re: Massive exhaust leak

Reply #8 –
As John44 said use stainless as the non stainless won't last long.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport