Coolant hose leak

general forum > questions . answers . discussions
User avatar
RichUK
Two wheeled terror
 
Posts: 230
Joined: Sun Oct 23, 2016 5:46 pm
Location: England

Coolant hose leak

Postby RichUK » Sun Apr 15, 2018 8:21 am

Hi

My bike had been laid up for several months and I took her for her annual test last week, ironically I was musing to myself how little trouble she has been so far.. just a water pump seal last year. During the test she was idled for a while and afterwards she was left to sit. After chatting with the guys I went to leave and noticed coolant had leaked down the oil tank and the radiator hose above it looked damp. I rode her home and it didn't look much worse. Took her out for a couple of hours ride yesterday and it seemed OK other than what looks to be "sweating" from the strings in the hose. I've read both negative and positive reports on OEM hoses, mine bike has low mileage (15k miles) and the coolant was changed along with the water pump seal last year, by me.

I don't know if this sweating is just coolant that had tracked back into the hose from the original leak or if the hose has become porous inside, I guess I'll monitor it over the next few rides.

If it is actually doing this is it ok to ignore it or should I be looking at changing all the hoses?

What do you think of these hoses on fleabay?
https://www.ebay.co.uk/itm/KTM-950-990- ... VFWiAGFXvg

Should I go for white hoses? (I am tempted by them :D )

Why do you think the seller says they don't fit the KTM 990R ?(I will contact the seller to ask).
Are the hoses different between the SD & SDR 990's?

Loads of question but thanks in advance.. that is unless you know all the answers and can't be arsed to tell me, in which Shame On You!
I have now, no doubt, shamed you into telling me the answers in which case I thank you in advance also. :mrgreen:

User avatar
DukeNukem999
Two wheeled terror
 
Posts: 384
Joined: Tue Mar 22, 2016 1:32 am
Location: Bris-Vegas, Australia

Re: Coolant hose leak

Postby DukeNukem999 » Tue Apr 17, 2018 2:54 am

I had the same if not a similar problem. Most of the issue is caused by the crappy OEM Spring type clamp. It occurred just after a service and I couldn't get it to stop no matter where I positioned the hose and clamp.
I instead put on screw type clamps and fitted a new OEM hose for the duration (until I can source some silicone hoses that aren't orange. AS3 havent had any in stock for ages).
Its been fine ever since :)

Photo here...

viewtopic.php?f=5&t=27709&p=335609#p335609
2010 (white-frame) SD, Rotty intake / SAS removal, Ceramic coated headers / Akra slipons, Ergo seat, SDR levers, Shorai LiFePO4, OEM 16T / KTM Supersprox 40T, RK GB525GXW chain, Michelin Pilot Road 4 / Pilot Power 3, factory alarm.

User avatar
RichUK
Two wheeled terror
 
Posts: 230
Joined: Sun Oct 23, 2016 5:46 pm
Location: England

Re: Coolant hose leak

Postby RichUK » Tue Apr 17, 2018 7:56 am

Yes, your thread was one of the ones I looked at when I searched.
I'm gonna ride some more later this week and see if it leaks or 'sweats' from the strings anymore. If not then I'll just gradually ignore it. :mrgreen:

If it doesn't leak again then, like you did, I'll try a different style of clamp. I like the look of those crimp on style ones but fear that would mean disassembly to install them.

User avatar
DukeNukem999
Two wheeled terror
 
Posts: 384
Joined: Tue Mar 22, 2016 1:32 am
Location: Bris-Vegas, Australia

Re: Coolant hose leak

Postby DukeNukem999 » Wed Apr 18, 2018 3:54 am

Yeah, while it was worrying initially, over a few rides I could tell it was a very slow leak luckily.
Its up to you, but you could easily swap out the clamp closest the radiator very easily (with minimal coolant loss).
2010 (white-frame) SD, Rotty intake / SAS removal, Ceramic coated headers / Akra slipons, Ergo seat, SDR levers, Shorai LiFePO4, OEM 16T / KTM Supersprox 40T, RK GB525GXW chain, Michelin Pilot Road 4 / Pilot Power 3, factory alarm.


Return to Hooliganism

Who is online

Users browsing this forum: PETEKELLEY and 2 guests