Double Checking My Work

kcusscam

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Ok,

I finally got my front heat exchanger welded and remounted, no easy feat the worker who put this sled together put all the freaking clamp facing the heat exchanger and not the access panel, couldn't cut the hose either because no one here seems to cary them.

Now here is what I did, reinstalled the exchanger and filled it back up with a 60/40 mixture. I unhooked the small hose that goes from the top of the front exchanger to the thermostat from the thermostat, figured the air would bleed out better from the top. Then I dumped about 1.5 gallons of of antifreeze into the top tank, hooked up the small hose and released any air from the rear (added) exchanger, then topped off the system. Then I double checked the oil, added some gas and started the sled, no track or suspension in yet so the tank if definitely the highest point. I did notice that the running boards and rear exchanger did not get warm but plastic tank did get pretty hot, I am guessing the thermostat had not opened yet, it dud not run for a significant amount of time. Just wondering if this sounds about right. It seems to me that any remaining air should bleed out into the tank and I will just need to replace it with more antifreeze.

Now here is my other question, I removed the long bolt that goes through the motor, to take out the exchanger and my dad was on the chain case side and thought he had to loosen the golden type bolt in the hole where the bolt goes, turns out he just missed a rivet. We tightened the bold back as best as we could, what does this bolt do, it looks like it just sits in there and acts like a bushing for the motor to sit on the bolt with. If it does something else is it going to cause me some hate and discontent?

Anyways I am off to bed and hopefully I can get the brackets for the zx2 installed tomorrow.

Thanks
Jeremy
 
Just went through the same thing. Even if you bleed the system it's tough to get all the air out at once. When you get out there this morning the tank will probably be low or empty. It may take a few heating/cooling cycles to completely bleed all the air from the system.

Not sure on the bolt but it could be an engine alignment adjuster.
 
The long bolt.

That is the engine adjusting spacer. If it is off the clutches will be off.

Check this from the service manual.
I used a SledPro tool to get the alignment right. If you search there is a write up in the tech section. If you can't find it let me know.

:yam: :4STroke: :rocks:
 

Attachments

Just went through the same thing. Even if you bleed the system it's tough to get all the air out at once. When you get out there this morning the tank will probably be low or empty. It may take a few heating/cooling cycles to completely bleed all the air from the system.

Not sure on the bolt but it could be an engine alignment adjuster.

Did you have fun installing those 36 STEEL rivets?
You did use the OEM Yamaha rivets didn't you?
If you use aluminum rivets they WILL snap as the heat exchanger is a major structural component keeping the tunnel square and stiff.
 
To bleed the air out of the coolant you may have to raise the rear of the sled up a foot or so. Then take out the plug in the crossover. This will get coolant up in the exhangers. Then the mag side exchanger should start getting warm as soon as the thermostat gets to 160 degrees F.
 
I took a socket that fit in the hole after the bolt was out and used a grinder to cut the mid section out leaving 2 prongs that fit fine.
I know Ulmer sells a tool to align the clutches, check out his site.

:yam: :4STroke: :rocks:
 


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