Engine Cooling



2 replies to this topic
  • RunAnywhere

Posted July 27, 2002 - 03:48 AM

#1

I'm just breaking in a 10.25:1 Wiseco and a high performance cam. I have an IMS so I installed a remote oil filter to help cool. Now that I've jumped 2.25 points of compression, my concern is back on my overheating problem. Isn't there a bolt on shroud somewhere?

Please help with input, I'd hate to start another rebuild.

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  • billyj7175

Posted July 27, 2002 - 10:24 AM

#2

I'm not sure which bike that you're talking about, but I'm assuming its the XR600 since you mention the IMS 4.6.
To address your cooling issue, I have seen several 600's with a XR400 oil cooler that mounts on the headstay of the frame, right underneath the headlight. I saw this setup for sale on some XR website, but I don't recall what the name of the site was. I do remember that it cost around $400 though.
I'm no guru, but I would think though that if the jetting was correct, and the oil filter was in the right way, you really shouldn't have a overheating issue, unless you run at wide open throttle all of the time. Either way, good luck and I hope you get it figured out. Back when I was in my teens, I had a XR250 that I thought was overheating, but it turned out that some silicone sealant had broken off from the valve covers and plugged a journal, and slowed the oil supply to the camshaft, and the cam seized in it. I've heard of XR6's doing this with the oil filter installed backwards.

  • RunAnywhere

Posted July 28, 2002 - 03:39 AM

#3

Thanks, Billy...

It's a 93650L. I already have one remote oil cooler. My concern with a second would be pumping those extra 2 quarts through 8 foot of line. I found cooling fins that are supposed to drop the temp. by 30 degrees for $250. It still seems that there should be a shroud.

Of course, several people say the right jetting is all it needs. I tend to agree, but hearing from someone with similar exp. would make a $650 gamble seem a bit less like gambling.





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