• 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 The previous version was outdated and no longer supported.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!

te450 coolant temp sensor in the cylinder, can I add one!

bower100

bower100

Husqvarna
AA Class
I'm riding with two other 450 guys,who's bikes both came with fans. I have a fan to add but i really want to install the OEM temp sensor intop the cylinder without removing it. ( Don't need any top-end work right now).

Somebody with good knowledge ..... can I drill and tap a new hole in the cylider side...,(I see a casting boss on my cylinder), where Husky installs it.

Specifically, is there enough space within the water jacket area to allow me to use a standard "3 tap set". ( tapered, plug and bottoming)

Last, what thread size is the temp sensor. ( haven't ordered it yet...).
Thanks guys, Dave
 
bower100;35736 said:
I'm riding with two other 450 guys,who's bikes both came with fans. I have a fan to add but i really want to install the OEM temp sensor intop the cylinder without removing it. ( Don't need any top-end work right now).

Somebody with good knowledge ..... can I drill and tap a new hole in the cylider side...,(I see a casting boss on my cylinder), where Husky installs it.

Specifically, is there enough space within the water jacket area to allow me to use a standard "3 tap set". ( tapered, plug and bottoming)

Last, what thread size is the temp sensor. ( haven't ordered it yet...).
Thanks guys, Dave
Click to expand...

I really doubt you would have enough clearance to tap the cylinder wall for temp sensor.
A much easier route is to install the sensor in the radiator.
 
A Trail-Tech Vector from Motorsportz will come with a temp pickup for the radiator hose. Very easy to install.
 
Yes, I have the Trail-Tech Vapor with the "hose" temp sensor and I like it but it's not suitable to operate the Husky fan. It's just a thermocouple, or RTD, I dunno which. The fan requres a switch...like a bi-metalic switch that in turn operates a relay to power the fan.

Anybody, while they had the cylinder off, looked into the water jacket at the temp sensor?


Dave
 
I really doubt you would have enough clearance to tap the cylinder wall for temp sensor.
A much easier route is to install the sensor in the radiator.
Click to expand...

Oooo, I see what your getting at. Buy the sensor and thread/tap a hole in, say a Uptite aluminum "Y" piece.

Hmm, wonder if that part has sufficient wall thickness to do that?

Hmmm.
Dave
 
I didn't read your post well enough, I guess I was in too big of a hurry this morning. I now understand what you are after.
It does seem like the boss in the casting would be there for just such a purpose. The fitting on my 610 appears to be 1/4" NPT, but it is hard to say for sure without removing it.
Is there room to put another fitting in a hose similar to the Trail Tech fitting?
 
Or you can do this.
supermotoTXC009.jpg
 
yeah Hammer,
I was thinking just that as well. Is that the stock Husky temp. senser....maybe from a 450?

Did you do that mod or is it OEM on a 510 or 610 ?

If you did it, did you use the Husky relay too to power the fan

Thanks for your help !
Dave

Edit: oh crud, forgot to ask, if you knew what size thread the senser is. 1/4" NPT?
 
bower100;35983 said:
Did you do that mod or is it OEM on a 510 or 610 ?
Click to expand...

The OEM sensor for the 450/510's are just below the F/I system at the rear of the cylinder.

TempSensor001.jpg


bower100;35983 said:
Edit: oh crud, forgot to ask, if you knew what size thread the senser is. 1/4" NPT?
Click to expand...

Since the whole bike is metric I highly doubt if the OEM sensor would be 1/4 NPT"
But the unit from a Trail-Tech Vector that Kelly MotoSportz sells might be.


Oh and by the way...Nice job Hammer:D
:thumbsup::thumbsup:
 
The metric pipe thread that is very common is British Pipe. It is so close that most times they are interchangeable. At least in my experience. In my previous post I should have said "it looks like 1/4" BP". I thought about it later and almost edited the post but it was too late.
After looking closer at the fitting on the 610 today, I don't think it is pipe thread. So I looked at the Halls on line catalog and it appears that the p/n is 8000 BO385 and it uses a gasket. Since pipe fittings don't it must be another thread. Probably time to call George or someone else who will know.
 
I've got a Husky thermo-switch, gasket and relay coming for the 450, ( in stock at Hall's, ..... nice).
I haven't decided where to put the switch just yet.

dave
 
The parts came quckly from Hall's, ... (two days....thanks Halls), and I checked the Husky temp switch threads are 10mm x 1.25 pitch. Straight threads with a o-ring for a gasket. It'll require a bit more than just drilling a hole and tapping it .... needs a shallow groove to retain the o-ring.
 
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