ADA Girdled Head

[zhack]

Few questions about putting in my new ada head. I tired searching and didn't find what I was looking for. Basically looking how to do a dual cooling setup with it. I have a b pipe with single cooling right now, and obviously one pisser. How do i go about setting up dual cooling. I have two lines coming from the pump. I will grab some pics when home to give any idea of what I'm working with. the second line runs to a little what plastic box at the bottom of the tray. the other line goes into the bottom of the manifold.

still trying to wrap my head around how to route the cooling lines. any diagrams or info would be helpful

 

[bored&stroked]

You have one cooling line, the other is the bilge line to suck water out threw that box. To add dual cooling which is absolutely not needed, you would have to drill and tap a second pressurized fitting into the pump and run the line.

 

[DocPhil]

That line is to stock siphon. Delete that and tap exhaust manifold. Then route cooling as below and add a second pisser.

 

[zhack]

Just double checked, it’s only one at the bottom of the manifold, and one on the bottom of the head that goes to a T

 

[DocPhil]

I already have 2 lines going into the bottom of the manifold, one from the pump, and the other goes to a T near coupler between the bpipe and the water box.

Pics would help of your setup. But it sounds like you have single cooling.

If you want dual cooling, one option is to T off the line from the pump and route it to the manifold taps and re route as above. This isn't true dual cooling but does serve a purpose.

The other option is to delete the stock siphon and add a line from the thru hull to the other manifold tap and reroute cooling as in the diagram above. If you choose this option you need to add a bilge pump if you don't have one already.

 

[zhack]

Pics would help of your setup. But it sounds like you have single cooling.

If you want dual cooling, one option is to T off the line from the pump and route it to the manifold taps and re route as above. This isn't true dual cooling but does serve a purpose.

The other option is to delete the stock siphon and add a line from the thru hull to the other manifold tap and reroute cooling as in the diagram above. If you choose this option you need to add a bilge pump if you don't have one already.

Yes, i double checked and edited my post.

Single cooling, one line going into the bottom of the manifold, one from the bottom of the pipe head to a T, and one form the top of the pipe head into the motor head

 

[bored&stroked]

So now the question of why do you think you want dual cooling? I run 195psi on a 84mm bore 61x with single cooling in AZ. Water temps are high 80's. Air temps 110+. Never had a cooling issue in any of my skis.

 

[DocPhil]

I live on a weedy lake and did it in case one line gets clogged

 

[zhack]

I live in northern Ontario (Canada). water temps here vary from high 70s-mid 80s for most lakes, 60s for the big ones. Ive never had a cooling issue before, I just didnt know how hot it would run at 185ish psi. Also, weeds are not overly an issue here, only around the shoreline.

Worst case, I guess I can always add a second cooling line at a later time if needed.

 

[mikidymac]

You only need single cooling in your area

 

[zhack]

Got the head installed today, install was decently smooth, the girdle pins were a pain, but thats about it. Kept it as a single cooling line based on what you guys said and some other research. If it begins running hot I will tap the second line over the winter

 

[zhack]

having some issues now. water testd the ski tonight while it was still on the trailer. It was not idling at all, constantly dieing even after it was all warmed up. After i pulled the trailer and ski out, it fired up fine and idled well, but when i was blowing the water out of the exhaust, it was coming out really dark and very oily. it usually comes out pretty clean and not oily.

Any thoughts on either of these issues? do you need to adjust your jetting or air/fuel ratio after going up to 35cc domes?

 

[mikidymac]

Are you sure the head is sealing? The sleeves are known to drop in the cylinders enough with age and an o-ring head might not seal. The cylinder should really be resurfaced to make sure it’s perfectly flat for a new 0-ring head.

 

[zhack]

I cannot not be 100% sure that the head is perfectly sealed. I seated all the orings properly. I am going to pull the head tonight and check the orings to see if any are pinched.

When i pull the head off is there a way to tell if the sleeves have dropped at all, or if the rings are not properly sealing.