exhaust question

hello. wel our exhaust has craked pretty bad yesterday from mystirous reason.. since here is a 2 week of camping and a very great time have for boat owners we were wondering if we can replace the exhaust with a regular exhaust hose. so we were thinking of running 3' exhaust hose from rizer to silencer temporarly. but wondering if it's recomended. cuz in the normal mufller there's supouse to be a baffle ours both sides are broken and have no idea how this happend. we do have exhaust flappers but are afraid of water comming back thru the exhaust do you guys recomend this or not?

edit:i think i wasen't clear enough. the boat is an 86 sn broken muffler( the fiber one) we want to rplace that with a exhaust hose for these 2 weeks recomended or not?

Go right ahead, you do not need the mufflers. I removed mine 20 years ago, and it sounds nice!!!

Hollywood wrote: I thought I read somewhere you could even get away with using PVC pipe, hopefully Pete will correct me if I'm wrong though.

You definitely can. I believe our '88 got some hose replaced with PVC- it may still be there to this day.

TRBenj wrote: Hollywood wrote: I thought I read somewhere you could even get away with using PVC pipe, hopefully Pete will correct me if I'm wrong though. You definitely can. I believe our '88 got some hose replaced with PVC- it may still be there to this day.

I still have this problem to solve and I was just looking at stainless online...pricey! I already have new hose cut to fit with the mufflers, so the pvc may be what I do for now.

I replaced mine with all stainless which I got off a customer at a really good price for it was a left over. The expense was in the Hi-Temp Silicone Hump Hose. The cost more than what I paid for the stainless.

BuffaloBFN wrote: Thanks for the source Tim. Is the stainless 3" on that site suitable? It's much cheaper than what I found.

It should be- I used the 3.5" bends and tubing for my exhaust project. 304 grade SS is very high quality, and the wall thickness was greater than anything else I found. This stuff is serious! Good customer service too- highly recommended.

Hollywood wrote: I thought I read somewhere you could even get away with using PVC pipe, hopefully Pete will correct me if I'm wrong though.

I'd be concered with the PVC. CPVC scd. 80 maybe! Maybe you're thinking about the fiberglass exhaust tubing? I would just bite the bullet and run hose. Less joints/connections and less potential for leaks.

Tim, The PVC you mentioned was a replacement and not factory? Correct?

Chris, Are you sure the neigbor had PVC?

Pete,

Like Tim's example, Booby's original mufflers cracked so he used PVC as a band aide or temporary fix, ran that way all summer and as mentioned he will probably run it that way until the PVC fails.

It seems to be a relatively common practice as in the example of my 77' the owner had done the same "muffler repair". After I purchased the 77' I installed new OEM mufflers.

I agree with Tim, for a 2 week fix it probably is no problem.

hey guys back online after a few days with out pc. well the trips we had planed are busted for good we fixed this exhaust using allot of fiber. we had carb prob repaired it didn't work, blew the exhaust fixed it then the carb got worst now we have repaired the carb and after getting exited to go out we realised our freaking water pump is done. can you rebuuilt thes water pumps? like replacing the bearing??

we trheat this boat very good but salt water and fuel quality is a pita after sitting for 3 weeks or so we have all these problems. yes still planning on it but waiting for money it's pretty expensive to do it here and have a few other things that we would like to do like the floors new carpet. uhm i got ;lost woth the name of the pumps it's the one with pulley on it.

it's the raw water pump haha i went to chek on skidim. i thionk we'll be sending it a boat shop here to see if they have the parts to rebuilt it.