Ktm leaking clutch

yz8103
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yz8103
Edited Date/Time 11/8/2019 3:15pm
Hi all! Well I was racing at the weekend and I dropped the bike on the clutch lever, and basically it slowly leaked until I ended up with no clutch... It leaked out through the piston seals inside clutch reservoir , anyway I took out the piston today but it looks like the barrel is scratched, aswell as the piston. I’m wondering if I buy a rebuild kit will it continue to leak due to the damage? Has anyone any knowledge on this? Also can you just replace the seals on the piston or should you buy the whole kit with new piston? Thanks 👍🏻 I’ve attached pictures of the the barrel and piston..
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yz8103
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yz8103 11/7/2019 2:41pm
11/7/2019 2:41pm




mxgreg85
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mxgreg85 11/7/2019 3:35pm
11/7/2019 3:35pm
If you have the resources, my recommendation would be to just replace everything. I had something similar happen but with a brake. I tried replacing just the seals first, got it to hold pressure in the shop, but it blew under racing conditions. Then tried a few more parts- seals, piston, same thing, eventually lost pressure. It wasn't until I replaced everything that it held for good. The clutch fluid probably does not get as hot and pressurized as brake fluid, but with the way the cylinder appears to be gouged it is just going to prematurely wear any new pistons/seals you put in if you don't replace everything. Peace of mind to not have to worry about it failing on you and ruining your day.
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Timo_2824
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Timo_2824 11/7/2019 4:12pm
11/7/2019 4:12pm
My brother has had to rebuild his master cylinder several times and has replaced the slave cylinder once. My cable pull clutch in the same spane has required a couple lubes. Something to think about as people keep wanting hydraulic clutches on everything.
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yz8103
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yz8103 11/8/2019 2:10pm
11/8/2019 2:10pm
mxgreg85 wrote:
If you have the resources, my recommendation would be to just replace everything. I had something similar happen but with a brake. I tried replacing just...
If you have the resources, my recommendation would be to just replace everything. I had something similar happen but with a brake. I tried replacing just the seals first, got it to hold pressure in the shop, but it blew under racing conditions. Then tried a few more parts- seals, piston, same thing, eventually lost pressure. It wasn't until I replaced everything that it held for good. The clutch fluid probably does not get as hot and pressurized as brake fluid, but with the way the cylinder appears to be gouged it is just going to prematurely wear any new pistons/seals you put in if you don't replace everything. Peace of mind to not have to worry about it failing on you and ruining your day.
Do you think rebuilding Iraq would just result in another leak? Thanks
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cwtoyota
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cwtoyota 11/8/2019 3:11pm
11/8/2019 3:11pm Edited Date/Time 11/8/2019 3:15pm
mxgreg85 wrote:
If you have the resources, my recommendation would be to just replace everything. I had something similar happen but with a brake. I tried replacing just...
If you have the resources, my recommendation would be to just replace everything. I had something similar happen but with a brake. I tried replacing just the seals first, got it to hold pressure in the shop, but it blew under racing conditions. Then tried a few more parts- seals, piston, same thing, eventually lost pressure. It wasn't until I replaced everything that it held for good. The clutch fluid probably does not get as hot and pressurized as brake fluid, but with the way the cylinder appears to be gouged it is just going to prematurely wear any new pistons/seals you put in if you don't replace everything. Peace of mind to not have to worry about it failing on you and ruining your day.
yz8103 wrote:
Do you think rebuilding Iraq would just result in another leak? Thanks
Iraq?


I spent some time in Iraq through 2007 and I didn't have much hope for them long term despite the best efforts of our coalition forces. In general, I found that people there do not have the resolve to fix their country at the individual level, perhaps it comes from living under a dictator for so long. I don't know...

*edit* I think either way, we've thrown in the towel on that whole deal as a country; the time to rebuild is kinda over. *edit*


Well, rebuilding those cylinders usually works out. You can get a kit pretty cheap. If it won't ruin your weekend, order the kit, put it together and test it. Peace of mind to not worry about it and get the whole assembly as mxgreg85 said. Keep the rebuilt one in your tool box as a spare.
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yz8103
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yz8103 8/26/2020 5:25am
8/26/2020 5:25am
mxgreg85 wrote:
If you have the resources, my recommendation would be to just replace everything. I had something similar happen but with a brake. I tried replacing just...
If you have the resources, my recommendation would be to just replace everything. I had something similar happen but with a brake. I tried replacing just the seals first, got it to hold pressure in the shop, but it blew under racing conditions. Then tried a few more parts- seals, piston, same thing, eventually lost pressure. It wasn't until I replaced everything that it held for good. The clutch fluid probably does not get as hot and pressurized as brake fluid, but with the way the cylinder appears to be gouged it is just going to prematurely wear any new pistons/seals you put in if you don't replace everything. Peace of mind to not have to worry about it failing on you and ruining your day.
yz8103 wrote:
Do you think rebuilding Iraq would just result in another leak? Thanks
cwtoyota wrote:
Iraq? I spent some time in Iraq through 2007 and I didn't have much hope for them long term despite the best efforts of our coalition...
Iraq?


I spent some time in Iraq through 2007 and I didn't have much hope for them long term despite the best efforts of our coalition forces. In general, I found that people there do not have the resolve to fix their country at the individual level, perhaps it comes from living under a dictator for so long. I don't know...

*edit* I think either way, we've thrown in the towel on that whole deal as a country; the time to rebuild is kinda over. *edit*


Well, rebuilding those cylinders usually works out. You can get a kit pretty cheap. If it won't ruin your weekend, order the kit, put it together and test it. Peace of mind to not worry about it and get the whole assembly as mxgreg85 said. Keep the rebuilt one in your tool box as a spare.
Only saw your response now🤣🤣 Thanks for the laugh
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