Reply
 
Thread Tools Display Modes
Old 06-21-2018, 03:13 PM   #1
Member
 
CombatYoga's Avatar
 
Join Date: Mar 2016
Posts: 32
Generator exhaust disconnected at flange - gasket?

Onan 5500
The exhaust exits the genny straight down under it and it ends in a flange.
The flange bolts together with the exhaust pipe and it continues on down and out the side of the RV.

The bolts that hold that connecting flange together must have vibrated out - the exhaust pipe is now dangling and only held on by the strap of metal where it comes out from under the RV.

Is there a high temp gasket needed where that flange bolts together to connect the two pipes? Or do I just bolt them up?

I took a picture of where the flange has come unbolted.
Attached Thumbnails
Click image for larger version

Name:	flange.jpg
Views:	45
Size:	196.5 KB
ID:	176767  
__________________

__________________
2015 Georgetown 27S
CombatYoga is offline   Reply With Quote
Old 06-21-2018, 03:15 PM   #2
Senior Member
 
A32Deuce's Avatar
 
Join Date: Nov 2012
Location: Mount Laurel, New Jersey
Posts: 5,887
Looks like you could just bolt together. They do make a silicone exhaust sealant you could use with it.
__________________

__________________
2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
A32Deuce is online now   Reply With Quote
Old 06-22-2018, 10:58 AM   #3
Head Rambler
 
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 4,869
Since it's under the rig there should be a gasket. That's a pretty common exhaust flange on the pipe, so a local autoparts store should have a gasket that fits it. I'd take a piece of cardboard and make a template and take it to a parts store and let them match it.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is offline   Reply With Quote
Old 06-22-2018, 12:43 PM   #4
Member
 
CombatYoga's Avatar
 
Join Date: Mar 2016
Posts: 32
Yeah, it feels to me there should be a gasket as any small leak will gather fumes under the rig there, but I don't see any evidence that there was one there before (if it presumably fell off when the flange separated).
__________________
2015 Georgetown 27S
CombatYoga is offline   Reply With Quote
Old 06-22-2018, 01:54 PM   #5
Senior Member
 
A32Deuce's Avatar
 
Join Date: Nov 2012
Location: Mount Laurel, New Jersey
Posts: 5,887
You would not believe how many engines do not use exhaust gaskets. That genny exhaust does not get that hot that you can't use the exhaust silicone. Works great.
__________________
2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
A32Deuce is online now   Reply With Quote
Old 06-23-2018, 03:02 PM   #6
Junior Member
 
Join Date: Apr 2018
Location: Plantation, FL
Posts: 7
That upper pipe looks like it has a flare to hold a donut gasket. I'd bet it should have a small hard donut type exhaust gasket. Those flange brackets aren't connected to the pipe but hit a flare stop on the ends of each pipe and clamp the pipe ends together. A gasket between the pipe ends is used to seal them. A flat gasket between the flanges probably will not seal as the pipe ends have to be sealed, not the flange brackets. Have you checked on top of the bottom pipe to see if a gasket isn't setting on there that you can't see from underneath? You should be able to pick up a donut gasket at any small engine repair shop or of course Amazon. This is just from looking at that pic so I could be wrong You really need to get up there and get close to see how they seal.
__________________
2016 RAM 2500 Laramie

SB 4x4 6.7L Cummins
Pullrite SuperGlide
2015 Palomino Columbus 320RS
ICanFixIt is offline   Reply With Quote
Old 06-24-2018, 03:48 PM   #7
Senior Member
 
Join Date: Jun 2015
Location: payson, az
Posts: 1,107
send an email to onan. i just looked at their accessories (exhaust and tailpipe section) and there is no mention of a gasket. it wouldn't hurt to check with them
__________________
2015 cardinal model 3825fl
2015 dodge ram 3500 dually
CHICKDOE is offline   Reply With Quote
Old 06-24-2018, 10:35 PM   #8
Junior Member
 
Join Date: Jan 2018
Posts: 23
Generator gasket

If you look at the generator flange you can see the outline of the old gasket which looks to be a common lawn mower exhaust gasket
__________________

overeasy is offline   Reply With Quote
Reply

Tags
generator, gas

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Featured Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:47 AM.