• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

txc 511 overheating

huskyrob450

huskyrob450

Husqvarna
AA Class
My fan never came on , the bike never boiled over till I removed the rad cap. The cap was stuck somehow. The level was fine, the cap was stuck an ripped apart when I removed it. The bike boiled over ever time I went out with a new 1.8 bar cap (20psi) stock replacement. Still no fan action. Went to a 2 bar (30psi). The bike stopped boiling over but was getting too hot in the slow sections [it always did]. Thinking I could just cut a manual switch in on the temp sensor at the radiator caused the bike not to run at all. That sensor has to be in the loop! I installed a switch to power the fan. It will be manual only but that's better than none at all! Going to give it a real test next week,:banana: 4 days in the sierras:applause:
 
I realize that a higher pressure cap is recommended by MANY people, but I think it is not a good idea. You are putting a 50% additional pressure burden on everything component that touches the rad fluid: seals, hoses, gaskets, etc. The rad fluid SHOULD expand to dump a little in the overflow bottle, if you run that much in the rads themselves, but I don't call that boiling over anymore, that's just expansion to me. Every time my temp sensor has gone bad, and my fan doesn't run at 215F, that's when I truly overheat, if my fan is working I really never overheat. I am running the stock rad cap (older bike).

JMHO
 
Last bike was a te 450 like yours. Never a problem. Fan came on a lot. All was good. I typically do a four hour loop with a couple rest stops where the bike completely cools. So after one good boil over its past room for expansion. At the end I've lost 25% = no fluid in top tank. Thanks for your opinion and with the fan running I may be able to go back to the 1.8 bar cap.
 
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