Leaky Supratrapps

[87SunSportMikeyD]

I think I have a leaky exhaust pipe on one side of my boat. I took off the SupraTrapps and have replaced with Fresh Air Exhaust. There is a Flange over the exhaust pipe and I think the exhaust pipe has a hairline crack in between the exhaust pipe and the transom of the boat. Is this typically the place where they are leaking? I have heard of swim platform leaks too but mine looks fine.... Any resources greatly appreciated. Thanks

[wotan2525]

Welcome back? I figured you had sold the Supra? Welcome Back!

My guess is that you didn't get a great seal between the flange and the exhaust pipe. A crack is possible, but I'd take it all apart, clean and wire brush it and then put it all backtogether with fresh RTV sealant. I know that I'm still chasing a small leak in either my swim platform, exahaust or rudder -- but since I've rebuilt the FAE and flange several times, I don't think it's there any longer. My swim deck leaks FOR SURE.

[87SunSportMikeyD]

Thanks for the welcome back ya i'm back. Just had to take a break from the boards. Have been pursuing my other hobbies i guess like brewing. I took off the FAE today and I think I can see a tiny crack between the original exhaust pipe and the transom that didn't quite get covered in sealant when I was mounting the flanges. The flanges are BIGGER than the exhaust pipes and fit over the top of them. About 1/2" of the exhaust pipe actually sticks out from the transom.

I don't see any evidence of my platform leaking... no spider cracks, no flex in the platform.. However I can't see it from the inside since my rear ski locker compartment doesn't pull out.

Thanks bud

[wotan2525]

I hear you on the other hobbies. My boat is out of storage but I haven't even had a chance to pull the cover off, yet. I've got a jetski with the engine out, a 1968 Yamaha motorcycle torn down to the frame and all of the plaster/lathe busted out of my laundry room. My supra is feeling neglected right now...... And I'm overwhelmed!

[daggett309]

I was hoping someone could help me out. I got an 86 supra comp ts6m that takes on water it's never a lot at once but it adds up after awhile could thst be from my supratrap.? I had the hull looked at and everything turned out ok. I cant figure out where the problem is. Any suggestions??

[bens250ex]

I was hoping someone could help me out. I got an 86 supra comp ts6m that takes on water it's never a lot at once but it adds up after awhile could thst be from my supratrap.? I had the hull looked at and everything turned out ok. I cant figure out where the problem is. Any suggestions??

Exhaust, swim platform bolts, any transom mounted devices, water intake, or the packing rope needs replacing on the drive shaft