Installing my new exhaust

[qws]

Here's what I got, crownline 225 with a 350 Mag. I've been wanting thru hull but I wanted something similiar to silent choice. I think I did pretty good. Picked up a sound advantage system and a set of exhaust tips off ebay. Between the 2 purchases I've got less that $500 in this set up so I'm pretty pumped about it. Anyways the divertors are in place. I'm getting ready to line up the exhaust tips, they are 4 inch, 5 inch including the flange. I'm gonna have to aim them down just a bit to miss the bottom of the swim platform. Do I just use a hole saw to make my cut? Do I also just use some 5200 in behind the flange? And lastly I just need confirmation that I can use some soft exhaust tubing and double clamp both ends. Just thought of something else, do I need to be concerned with heat and the transom?
thanks

 

[tpenfield]

Re: Installing my new exhaust

What could possibly go wrong?

A hole saw and a bad***** drill will be needed. I would seal off the exposed transom (wood) with something very moisture impervious, maybe epoxy.

Otherwise, you might be starting a restoration thread in a few years.

post some pics when you can.

 

[qws]

Re: Installing my new exhaust

What could possibly go wrong?

A hole saw and a bad***** drill will be needed. I would seal off the exposed transom (wood) with something very moisture impervious, maybe epoxy.

Otherwise, you might be starting a restoration thread in a few years.

post some pics when you can.

LOL.. a lot.
I was thinking of using duct tape on the inside and outside of the transom. Once marked drill a pilot hole, then start the hole saw from each side. But I do like your idea of using an epoxy first on the inside of the transom and letting it dry before drilling. The drilling part is making me a bit nervous. Otherwise the install has been easy so far. I'll take some pics tomorrow and post what I've got so far.

 

[littlebookworm]

Re: Installing my new exhaust

After you drill the holes and dry-fit everything, remove the pieces which go through the transom and seal the sides of the transom holes with a few layers of epoxy. You are going to have to make sure that the holes you drill give you enough 'wiggle room' to seal the holes with epoxy and then to be able to slip the pipes through the holes, which will now be slightly smaller due to the thickness of the epoxy. By the way, i would use wide blue masking tape rather than duct tape to mark the hole locations. Duck tape will gum up the transom and your drill bits. Hy

 

[Alwhite00]

Re: Installing my new exhaust

Looking forward to the pics, Inside & outside.

LK

 

[Bondo]

Re: Installing my new exhaust

After you drill the holes and dry-fit everything, remove the pieces which go through the transom and seal the sides of the transom holes with a few layers of epoxy. You are going to have to make sure that the holes you drill give you enough 'wiggle room' to seal the holes with epoxy and then to be able to slip the pipes through the holes, which will now be slightly smaller due to the thickness of the epoxy. By the way, i would use wide blue masking tape rather than duct tape to mark the hole locations. Duck tape will gum up the transom and your drill bits. Hy

Ayuh,.... I agree with Hy,... Drill 1st, then seal the wood up...

I'm thinkin', a 4, 1/4" holesaw, 'n a Good aim....

Don't use 5200,... ya might have to take 'em off someday... use 4200...

 

[wca_tim]

Re: Installing my new exhaust

I used a 4 1/8" holesaw... and had to "touch it up" after. Also be aware of the angle the pipe is going to come through the transom - it's thick enough that you need to drill / cut the hole at the same angle or close to it or it won't fit quite right (unless you're goign straight through it). don't ask how I know this...

seal the you know what out of it with epoxy (the wood) and then follow Bond-Os advice regarding 4200 vs 5200 (I didn't). 5200 makes a heck of a seal, and it can be removed if you really must, but if you have to, you'll think hard before doing it again...