Straight pipe exhaust gasket
 

Hello, getting ready to put a straight stack on my 102.(K241) Does anyone have a suggestion as to what type of gasket to use. I found a Kohler 24 041 49 at a local mower shop but it’s just wrong enough to not work. It’s the metal type. Any suggestions are appreciated, thank you.

The normal exhaust design was a 1 inch pipe that threaded into the block. There was NO gasket.

Thanks for the reply. I should have waited until I had more time to make the original post. What I’m wanting to do is remove the existing muffler and threaded pipe and install a straight stack. The set up came with the tractor and I hadn’t looked at it close enough until tonight. I think the gasket is right but the flange for the stack is wrong. I won’t know for sure until I get the muffler and pipe out. By looking at the flange I can see the holes are too close to the pipe to allow for the bolt head.

Attachment 109370

Attachment 109371

Well that is prolly why the factory used a threaded pipe, not enough room for
even Allen head bolts.
I used to like loud exhausts and loud music, now my hearing is shot, and i can hear little conversation in a populated area.
But that is not your question but something to think about for sure.
Do know a longer pipe does need a brace or will crack either the pipe of damage the block because of vibration. :bigthink:

To get that exhaust pipe to fit, machining will be required.

They are your ears, Bud
But.....everyone else also has 2 of 'em
Handle w/care as they are irreplaceable.
Ask me how I know this.....

I’m really hoping to get to it this weekend. Using the gasket as a guide, it looks like the flange would work if I slotted the holes out each way. Ol’George has me a little nervous though. The last thing I want to do is cause damage to the block. I have heard that a brace is necessary but I’ll have to do some looking in to it as far as placement and all that. I know the stack is unnecessary, just something I wanted to try. May not even keep it that way. BTW, thanks for the replies. I’m learning as I go on a lot of this.

if you go with an unmuffled stack, do yourself a favor and wear earplugs or other hearing protection and do not expose your children to the noise.
It is annoying having to ask people to repeat themselves during conversation.
This has come to the forefront during the covid mask wearing requirements.
I didn't realize how much lip reading I was doing, and upon discussing it with others, I found out others are having the same problem with conversation when wearing masks.
In my early days nobody really mentioned "hearing protection" :bigthink:

I agree. I’m in the habit of wearing ear plugs. I always have a pair handy. The more I think about it the more I think I’ll keep the standard muffler on for normal operations. I just have to atleast. hear the straight stack once and get some pictures though. I didn’t end up getting time to work on it this weekend but I did find out that the threaded pipe will come out easy and I talked to the PO. He used Allen head cap screws for the flange and has had it on before.

When I rebuilt my K341 I had the machine shop drill and thread a couple holes for me. I bought manifold flanges and gaskets made for those old VW bugs that fit great, and I used a muffler made for an old Ferguson or Ford tractor. It is much better than the old muffler I made for it years ago, and looks great, but I still use earplugs because it's borderline too loud. I went that direction because it was much cheaper than a factory muffler replacement.