Good Sam Club Open Roads Forum: Onan exhaust hangers don’t last
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 > Onan exhaust hangers don’t last

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ezgoin

Sunny Arizona

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Posted: 08/13/20 07:16am Link  |  Quote  |  Print  |  Notify Moderator

I had to replace the Onan exhaust hangers several years ago when the exhaust dropped off while driving. Now, just 3 years later, 2 of the 3 hangers have broken again. The rubber part of the hanger appears to to just rot away, maybe because of the Arizona heat. The weight of the exhaust pipe also may be a factor in the rubber breaking.

Wouldn’t a full metal support strap be better? Are there any available that are compatible with the Onan exhaust?

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Bill


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enblethen

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Posted: 08/13/20 08:17am Link  |  Quote  |  Print  |  Notify Moderator

Some hangers have a web material and not rubber type material.
The exhaust along with genset needs to be mounted so stop vibration.


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MountainAir05

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Posted: 08/13/20 08:50am Link  |  Quote  |  Print  |  Notify Moderator

My first one last about 5 years. The replacement came from a auto parts store and its been on there 15 years. It looks like maybe a tire type laminated material. Without some flex you going to get breakage on metal to metal connectors.

bdpreece

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Posted: 08/13/20 11:29am Link  |  Quote  |  Print  |  Notify Moderator

MountainAir05 wrote:

My first one last about 5 years. The replacement came from a auto parts store and its been on there 15 years. It looks like maybe a tire type laminated material. Without some flex you going to get breakage on metal to metal connectors.

Same with mine. Original only lasted about 2 years. Bought the smallest one I could find at an auto parts store and 8 years later it still looks almost new,


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bukhrn

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Posted: 08/13/20 02:02pm Link  |  Quote  |  Print  |  Notify Moderator

I just replaced mine after 13 years, but that was my own fault, got too close to the porch steps on the S&B, and caught the end of the pipe.[emoticon]


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wa8yxm

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Posted: 08/13/20 04:15pm Link  |  Quote  |  Print  |  Notify Moderator

First the hangers are standard automotive products you can get replacements at Auto-Zone Discount auto. and I suspect Wal*Mart (never looked) but they are standard.

The metal around the pipe. then a fiber/rubberized-fiber/ metal to the body is standard not just vibration but HEAT isolation is provided. 've done all metal on occasions but it's not recommended because of the HEAT isolation.


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diplomatdon

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Posted: 08/13/20 10:03pm Link  |  Quote  |  Print  |  Notify Moderator

Pick up a broken truck mudflap from the side of the road and cut your own fiber piece to replace the broken one. Most of the black flaps have fibers embedded n them. Will last a long time. I've used them on the coach hangers and work great. Good lick Don

Busskipper

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Posted: 08/14/20 05:25am Link  |  Quote  |  Print  |  Notify Moderator

Mine broke often till I just grabbed an 18" piece of Number 12 electric wire, Yellow with all three wires.

Wrapped in place and has been there for years - noticed just the other day when looking to change the oil.

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bjbear

Cold Lake, AB, Can

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Posted: 08/14/20 08:51am Link  |  Quote  |  Print  |  Notify Moderator

Just happened to me a couple of days ago. Driving along and suddenly heard a dragging noise. Pulled over, and the onan exhaust was dragging. It is just in front of the front wheel so I am lucky it did not get run over. That would have been a mess!! Tied it up using plumbing strap I always carry. Will replace later with proper hanger.


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Chum lee

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Posted: 08/14/20 12:22pm Link  |  Quote  |  Print  |  Notify Moderator

MountainAir05 wrote:

My first one last about 5 years. The replacement came from a auto parts store and its been on there 15 years. It looks like maybe a tire type laminated material. Without some flex you going to get breakage on metal to metal connectors.


Yes! There are better grades of reinforced rubber. I just found a failed tire (blowout) and cut the appropriate sized rubber strip out of the sidewall. You need a sharp knife to do that. Drilled out the rivet and drilled two holes in the rubber strip and replaced it with an appropriate sized bolt and nut Problem solved for free. It's been fine now for 7 years.

Chum lee

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