Nope. Nothing going up to the bars.
Help identifying what's been done.
- Thread starter eric_f
- Start date
Hey guys!
I've been working on the old SN trying to get ready for the season. I've got some more questions about the cooling setup.
From my understanding, normally the cooling line comes from the pump, into the manifold, out the head, and into the exhaust. Mine aren't doing that.
Reading this post, I see there are multiple ways things can be setup. Mine doesn't match any of them, but it's closest to the "Independent cooling B-pipe style".
The manifold has been tapped for two inputs and a tee feeding them.
My head has 5 outlets (one of them plugged) and all 4 of them go to the pissers in the tray.
On the head pipe (I think that's what it's called) there are two barbs. I've seen pictures that have two and others that have three, so I'm a bit confused.
The way it was plumbed up, both barbs from the head pipe were tied together with a tee, fed down to the stinger, and split with another tee to a pisser.
So, how is the exhaust getting any water? Is it coming through the manifold? I've been avoiding pulling it apart as I don't have any new gaskets.
I've seen some posts about running things restricted to reduce the amount of water for added performance. From the amount of water coming out of the side pisser, things seem pretty restricted.
Also, I've found some burning in the fiberglass around the waterbox, so maybe it's too dry? I plan to put the thermometer on it this season to see what it's at.
When I put things back together, I just want to ensure things are safe. I'd like to keep the tray pissers, but I'll clean up that piping, it's a mess
I've been working on the old SN trying to get ready for the season. I've got some more questions about the cooling setup.
From my understanding, normally the cooling line comes from the pump, into the manifold, out the head, and into the exhaust. Mine aren't doing that.
Reading this post, I see there are multiple ways things can be setup. Mine doesn't match any of them, but it's closest to the "Independent cooling B-pipe style".
The manifold has been tapped for two inputs and a tee feeding them.
My head has 5 outlets (one of them plugged) and all 4 of them go to the pissers in the tray.
On the head pipe (I think that's what it's called) there are two barbs. I've seen pictures that have two and others that have three, so I'm a bit confused.
The way it was plumbed up, both barbs from the head pipe were tied together with a tee, fed down to the stinger, and split with another tee to a pisser.
So, how is the exhaust getting any water? Is it coming through the manifold? I've been avoiding pulling it apart as I don't have any new gaskets.
I've seen some posts about running things restricted to reduce the amount of water for added performance. From the amount of water coming out of the side pisser, things seem pretty restricted.
Also, I've found some burning in the fiberglass around the waterbox, so maybe it's too dry? I plan to put the thermometer on it this season to see what it's at.
When I put things back together, I just want to ensure things are safe. I'd like to keep the tray pissers, but I'll clean up that piping, it's a mess
john zigler
Vendor Account
- Location
- wisconsin
Sorry, but That whole set up is just wrong.....
I do not see how your head pipe is getting ANY water. "IF" Someone has modified the exhaust gasket for it gets water from the manifold, that too is just wrong.....
Do you have 2 lines coming in from the pump? If so you can run two lines in to the manifold. Depending on the water temps you ride in, and mods done to your ski you "may" need dual cooling.
You then can feed the head pipe (I do it at the rear) from the head. Then take a 2nd line off the head and go overboard with a water by pass. do this ONLY if you have two lines coming in. You should not take more water out than you have coming in! Take the fitting at the front of the head pipe to feed the stinger, put a tee here, and go overboard again to a water by pass.
Just another FYI - I would strongly suggest going to a girdled head. You are currently running the risk of breaking your cylinder without one.
Hope this all makes sense.
I do not see how your head pipe is getting ANY water. "IF" Someone has modified the exhaust gasket for it gets water from the manifold, that too is just wrong.....
Do you have 2 lines coming in from the pump? If so you can run two lines in to the manifold. Depending on the water temps you ride in, and mods done to your ski you "may" need dual cooling.
You then can feed the head pipe (I do it at the rear) from the head. Then take a 2nd line off the head and go overboard with a water by pass. do this ONLY if you have two lines coming in. You should not take more water out than you have coming in! Take the fitting at the front of the head pipe to feed the stinger, put a tee here, and go overboard again to a water by pass.
Just another FYI - I would strongly suggest going to a girdled head. You are currently running the risk of breaking your cylinder without one.
Hope this all makes sense.
Thanks John.
I knew it wasn't right. But I don't yet fully understand what correct looks like to make it that way.
I only have one cooling line. The other is still set up for the stock bilge. The lake I ride in most is glacier-fed, so even in summer, the water is pretty cold. I may consider adding dual cooling later on if/when I add an electric bilge pump or two.
Since I only have single cooling, it sounds like this setup is what you're suggesting. Of course, there are a few differences, but it's close.
I will look into this, thanks!
All things considered, this ski has been running as-is for over 20 years or more. I'm sure there are things I can do to improve things, but it sure seems like it's been pretty reliable.
When time and funds allow, I'd like to build things up nicely. For now, I just want to ride!
I knew it wasn't right. But I don't yet fully understand what correct looks like to make it that way.
Me too. The only thing I can come up with is the gasket was modified to let some water in...
I only have one cooling line. The other is still set up for the stock bilge. The lake I ride in most is glacier-fed, so even in summer, the water is pretty cold. I may consider adding dual cooling later on if/when I add an electric bilge pump or two.
Since I only have single cooling, it sounds like this setup is what you're suggesting. Of course, there are a few differences, but it's close.
Do you know where I can get a replacement gasket? I have a feeling it's been modified.
I will look into this, thanks!
All things considered, this ski has been running as-is for over 20 years or more. I'm sure there are things I can do to improve things, but it sure seems like it's been pretty reliable.
When time and funds allow, I'd like to build things up nicely. For now, I just want to ride!
john zigler
Vendor Account
- Location
- wisconsin
Your picture/diagram is correct for single cooling. I agree, "IF" you ride in cool water, dual cooling is probably not needed.
We have exhaust gaskets in stock here. I do have a $25 Minimum order fee for credit card processing reasons though......
watcon.com
We have exhaust gaskets in stock here. I do have a $25 Minimum order fee for credit card processing reasons though......
Gasket Factory Pipe, Head Pipe to Manifold
Gasket, Factory Pipe Head pipe to manifold. 50mm I.D.
watcon.com