Exhaust pipe wrap?

[mvmahal]

We have a caterpillar d343 and a dry type exhaust. The pipe after it leaves from the engine goes up to what I think is a some kind of galvanized metal wrapped around it. It has a bit of rust here and there and was wondering if anyone knows if its safe to remove? if I can maybe just rewrap or wrap the exhaust with some exhaust heat wrap cloth?



Thanks

 

[RT Firefly]

Greetings,
Mr. mv. Why not just paint the wrap? Try a rust preventive paint like Rustoleum. Even a spray bomb would work, if you're careful.

 

[psneeld]

I wouldn't wrap over rusty metal.

As far as removing the galvanized metal that's rusting...I would and replace in kind or see a marine engine specialist and see what else might be recommended.

 

[mvmahal]

Sorry, maybe I should explain better the galvanized is wrapped around the exhaust pipe, there is around a 1-1.5" gap between the two. The galvanized is hanging from up above and moves around a bit. It is riveted together. There are no holes in it or anything but its possible the exhaust is leaking under it so I do want to remove it.



Its a bit clunky mostly and a bit ugly.


I just seen some other exhausts that look much cleaner with just the cloth exhaust wraps on them.


Thanks

 

[RT Firefly]

Greetings,
Mr. mv. Ahhhh. Sorry. I completely misunderstood. As per Mr. ps's suggestion, there is an exhaust specialist here in Fort Lauderdale that may be able to steer you in the best direction:https://deangelomarine.com/
I visited their facility a few years back and they are pros, for sure!

 

[Comodave]

If I understand what you are saying, I think maybe the galvanized sheet metal is there for heat protection. If it has an air gap inside it the air will get heated up and since hot air rises it will flow out the top and draw cooler air in from the bottom. It will help protect the surrounding surfaces by keeping the heat off them. If you want to get rid of the rusty look just replace it with some better looking sheet metal.

 

[Madhatter53]

Pics help.

 

[Comodave]

Pics help.

+1, always.

 

[GoneFarrell]

Maybe a bit of wire brushing and some exhaust header paint.

 

[O C Diver]

The dry part of my exhaust riser is wrapped with cloth and epoxy. It works very well. Part of the reason it works very well is that I almost never use more than 40 HP out of my 132 HP engine. The point is that I would be reluctant to change from the original without knowing how hard you push the engine and how much heat it produces. For perspective, my engine hasn't gotten hot enough to burn the paint off the exhaust manifold.

Ted