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 The previous version was outdated and no longer supported.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

Noise from water pump

deceptinator

Husqvarna
B Class
Got an '07 SM450 with 6300 miles.

Was riding around this afternoon and noticed a whirling/chirping sound from water pump.

I pulled over to ensure I had coolant, etc and figured it would get me home (15-20 miles).

The noise was fading in and out on the way home, but distinctly noisy.

When I got home I did the business and pulled out the pump.

No profound damage, just seems kind of bound like the seal is not lubed.

The bearing inside the engine is fine. I took off the impeller but that's as far as I went.

Any insight or advice is appreciated. Will be taking the pump to dealer to let them poke at it.

It looks to me like there is a spring in the seal that clenches the shaft. Saw no need to mess with it without a game plan and better disposition.

I've been in the engine to this extent before, so I know about the timing, proper loctite and that stuff. I love my bike way too much to screw it over with the valve train off. The horror.

Thanks in advance,

-Walter
 
Sorry to have not taken photos, although there is really nothing to see.
It's all in how the bearing and seal are working. Something in there is making noise. Perhaps the seal is dry and squealing

The inset photos in the image show some seals. The one on the right looks like part (10) and the seal on the left kind of shows how it works with the spring ring.


PUMP by deceptinator, on Flickr
 
The horror.

Thanks in advance,

-Walter

I'm living that same horror but in a ~different manner .... Check plate #8 from the pic above and the back of the pump for rubbing ...Maybe even the front of the pump and the inner side of the pump for rubbing ... These are about the only places and moving parts after the bearing that can make sounds if damaged ...

Bearing #9 also sits in a housing in part #8 and might can spin ... :( ... How do you know the bearing (#9) is ok?

No water in the engine oil? Seal is ok ...But dry? maybe ...squirt some wd40 on it ...
 
Thanks for the tip. No evidence of exchanging fluids. Whew.

I purchased a new seal and bearing today and have the pump fully dismantled.

The bearing was not loose and seems to be in fine shape. Cool. I have an extra bearing now.

The spindle had some gunk on it under the seal. Could have been the issue. Won't know, I destroyed the old seal removing it.

Wondering now how to press in the seal... I bet the answer lies on the Internet.

Cheers.
 
Thanks for the tip. No evidence of exchanging fluids. Whew.

I purchased a new seal and bearing today and have the pump fully dismantled.

The bearing was not loose and seems to be in fine shape. Cool. I have an extra bearing now.

The spindle had some gunk on it under the seal. Could have been the issue. Won't know, I destroyed the old seal removing it.

Wondering now how to press in the seal... I bet the answer lies on the Internet.

Cheers.

Here is how I slide the seal in place .. Just use a long bolt , a socket, and a washer the same size as the seal to pull seal into place ... Reverse the configuration to pull the seal in from the outside ...

A shop can do the same also ...

100_2211.JPG
100_2212.JPG
 
Rad. I can manage that!

Certainly, a similar tactic can be employed to seat the bearing on the other side with a socket sized for the OD of the bearing.

Thanks again.
 
Rad. I can manage that!

Certainly, a similar tactic can be employed to seat the bearing on the other side with a socket sized for the OD of the bearing.

Thanks again.
My bearing fit pretty easy ,,,You added slack to the timing chain as a step to removing the pump and bearing?
 
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