Community Forums

chevyman · 09-18-2005, 01:35 PM

I have a 2002 Workhorse under my Sightseer Winnebago. My question is, the exhaust pipes seem very loose where they attach to the
Exhaust Manifold. Can the exhaust pipes be tighten? Is there a gasket between the pipe and the end of the manifold? There are only two hanging brackets on each exhaust pipe. Has anyone added more?

chevyman · 09-18-2005, 01:35 PM

I have a 2002 Workhorse under my Sightseer Winnebago. My question is, the exhaust pipes seem very loose where they attach to the
Exhaust Manifold. Can the exhaust pipes be tighten? Is there a gasket between the pipe and the end of the manifold? There are only two hanging brackets on each exhaust pipe. Has anyone added more?

DriVer · 09-18-2005, 03:37 PM

If your exhaust headers aren't leaking at the connection in between the header and the pipe then everything is OK. The pipes are supposed to move. If the pipes didn't move when the engine torques up something would break or bend. GM has been installing this type of connection for many years I recall several other configurations that had springs between the pipe flange and the exhaust header.

chevyman · 09-18-2005, 07:05 PM

The driver's side exhaust pipe seems more loose than the passenger's side exhaust pipe, should I attempt to tighten the three bolts to make the one as tight as the other. It does not seem to have an exhaust leak. But when you move the tail pipe on each side, one more noticable play then the other.

RV Wizard · 09-18-2005, 11:24 PM

Chevyman, welcome to iRV2, we are glad to have you join us here. We look forward to reading of your adventures and experiences. If it is not leaking then I would not try to tighten it unless I thought that I really should; only you can make that call. I would try to first find out the torque setting of the bolts on the flange, loosen them and then retighten to that torque. You may want to pre soak with penetrating oil if the bolts are rusted but otherwise just leave it like it is. Good luck and enjoy the website and forum.

Bob (WA0MQE) · 09-19-2005, 04:07 AM

chevyman... I had the same problem on my '01 Workhorse chassis. The drivers side was very loose and leaking exhaust. I ordered a new gasket from a parts dealer in Denver and replaced it. Found the torque requirements in the Service Manual (don't remember what it was) tightened accordingly, no problems after that.

Bob Bowers