Water Pump Failure!

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TonyH

Joined Nov 2010

8 Posts | 0+

Melbourne, Australia

Discussion Starter
• Jan 23, 2011

• #1

Gidday,

I was lucky enough to go to a Shane Watts riding school this weekend gone, and a mate of mine with a 570 berg (09) and I both had coolant boiling in the water jackets from all the slow riding and idling around. This was to be expected as it happened, on a riding school I did a few years ago, to nearly every KTM in attendance... BUT,


Damo on the 570 was suss enough to have the pump inspected and it was found that the drive key for the pump impeller had sheared off.

I have a 2010 450 and haven't checked mine yet, but I will in the next few days.

Is this a common fault? The impeller is a KTM stamped item (p/n starts with 08?)

Also, I found this... http://www.ktmcyclehutt.com/ktm-parts/k ... t=bigbikes

Can anyone tell me if that will fit the Berg?

Cheers

TonyH

 

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Harowerks

Joined Sep 2010

25 Posts | 0+

Brisbane Australia

• Jan 24, 2011

• #2

Did you lose much fluid or was it just boiling and spitting out?

Did you have fans fitted?

Hard to tell from looking here.
http://www.husaberg.com/fileadmin/user_upload/SME_FE_450_09_EN.pdf

 

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pistolpete77

Joined Aug 2010

21 Posts | 0+

• Jan 24, 2011

• #3

Did you guys check to see if the acorn nut at the end of the shaft was intact? I read somewhere about a berg that lost it's acorn nut and it took out the impeller. It is possible that the nut came off and instead of breaking the impeller, got wedged in there.

 

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TonyH

Joined Nov 2010

8 Posts | 0+

Melbourne, Australia

Discussion Starter
• Jan 24, 2011

• #4

Neither of us run fans Haro, and it was almost 30 degrees in the shade (90 F ?)

I lost coolant on several occasions, and had to add as much as 400ml once to get the level back over the core. The coolant was lost through the overflow (why don't they fit recovery tanks????) and it 'spat' out. Once the level was low enough to avoid loss, the water that was in the cylinder jacket could be heard boiling inside the jacket after slower paced activities.


The nut was still in place Pete. I just spoke to a Berg / KTM mechanic who says the slop in the impeller is normal, and on the KTM it can be replaced with the larger aluminium retrofit. Not sure if it fits the Berg yet, Ill check bacxk next week once he's had a chance to find out.

Thanks for the input boys. :!:

 

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Harowerks

Joined Sep 2010

25 Posts | 0+

Brisbane Australia

• Jan 24, 2011

• #5

Thanks for the info and it will be good to know about a larger impeller if it works.

 

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bowser

Joined Nov 2009

123 Posts | 0+

Newcastle Australia

• Jan 25, 2011

• #6

bet my left testy that you pump seal will be in backwards also (very common with Husaberg/ktm)

 

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fizz

Joined Jun 2010

139 Posts | 1+

Canberra Australia

• Jan 25, 2011

• #7

I ride slow technical tracks in Australia, and now its getting hot here - 35 degrees celcius today (Australia Day).

1. Get the fan kit
2. Always get in the habit of turning the bike off when you stop, even if for only a minute.

Before I did this, it always spat coolant - now the bike NEVER does.
:cheers:
For tracks I ride the fan is MOSTLY on all the time (I cant hear it when the bike is running, but when I turn the bike off, the fan still runs for a second or two before shutting off)

Regards
fizz

 

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TonyH

Joined Nov 2010

8 Posts | 0+

Melbourne, Australia

Discussion Starter
• Jan 26, 2011

• #8

bowser said:

bet my left testy that you pump seal will be in backwards also (very common with Husaberg/ktm)

Click to expand...

Bowser, can you tell me what the symptoms are of the seal being in b ackwards? Thanks for the heads up


Thanks Fizz, I'l be investing in a fan when funds permit.

 

Taffy

Joined Nov 2001

17K Posts | 774+

Ely, England

• Jan 26, 2011

• #9

seems odd that the superflo impellor looks just like the old pre 2000 impellor? straight veins that don't meet the inside or outside etc. and in the meantime we've been using the curved vein ones and thought they were a progressive item....

regards

Taffy

 

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bowser

Joined Nov 2009

123 Posts | 0+

Newcastle Australia

• Jan 26, 2011

• #10

TonyH said:

bowser said:

bet my left testy that you pump seal will be in backwards also (very common with Husaberg/ktm)

Click to expand...

Bowser, can you tell me what the symptoms are of the seal being in b ackwards? Thanks for the heads up


Thanks Fizz, I'l be investing in a fan when funds permit.

Click to expand...

a lip seal should always have the spring on the pressure side, husaberg installed the oil seal the correct way with the spring on the oil side of the weephole but installed the coolant seal with the spring on the weep hole side rater than the coolant side. it goes as far back as a stuff up in the printing of the spare parts manual. If it leaks you can simply remove the water pump seal and turn it around and re use the seal and it won't leak that way installed or just replace the seal as it's only $12 or something from memory.

heaps of people have replaced the seal the same way as it comes out installed from the factory and it has leaked a short time later. However no one complains when the seal direction is swapped around.

 

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Big Booger

Joined Oct 2010

15 Posts | 0+

Maple Ridge BC Canada

• Jan 26, 2011

• #11

*** backwards seal.

Also the weep hole faces forward and is subject to an assault of sand and dirt further pushed into the hole when pressure washing your bike. The amount of dirt I found between the seals was alarming and has to be contributing to the early demise of both seals.

 

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DaleEO

Joined Oct 2002

3K Posts | 21+

Sunland, CA

• Jan 28, 2011

• #12

My pump seal was in back wards too.

The impeller is a two piece unit, and is not the same as the ones used on the KTM's.

For the weep hole.............

Purchase some 1/8th tubing from the local home improvement store. Cut a short length of it, and tap it into the weep hole. Attache a short piece of plastic tubing, carb vent line, pvc tubing etc to the metal tubing and run it down between the output hose of the water pump and the motor. This will keep the sand and stuff from getting in between the seals and causing premature failure.