2019 KX450 Hydraulic clutch

Moto520
Profile picture for user Moto520
Posts
3636
Joined
2/4/2013
Location
Schaumburg, IL, USA
Moto520
so......while i was replacing my clutch with some Rekluse Torq-drive components i pulled out the push rod while there was oil in the tranny. I guess i wasn't supposed to do this because the oil can work its way into the clutch master cylinder. Anyone else make this mistake? Advice on whether i should rebuild the clutch components or not?
1
|
mxrose3
Profile picture for user mxrose3
Posts
2350
Joined
8/17/2006
Location
Delmar, DE, USA
mxrose3 1/27/2020 10:33am
1/27/2020 10:33am
I've had my master cylinder off of the side of the left cases before. I don't see how oil can enter it as it looked to be entirely sealed off. Just curious if anybody else have info on this?
cwtoyota
Profile picture for user cwtoyota
Posts
2397
Joined
3/11/2013
Location
Tacoma, WA, USA
cwtoyota 1/27/2020 11:24am
1/27/2020 11:24am
Unless something is damaged, the engine oil and hydraulic system can't mix. Look at the parts diagram:

https://www.motosport.com/dirtbike/oem-parts/kawasaki/2019/kx450f/clutch

13256 is the hydraulic piston.

You can see in the diagram that the piston (not the rod) seals against the bore in the master cylinder casting.
There is no way for the piston to leak or pop out unless you remove the master cylinder from the engine.

1
mxrose3
Profile picture for user mxrose3
Posts
2350
Joined
8/17/2006
Location
Delmar, DE, USA
mxrose3 1/28/2020 8:18am
1/28/2020 8:18am
Moto520 wrote:
https://youtu.be/AAwiy0_eH6A
So what they are saying in this video is that regular engine oil could get between the slave cylinder and the outer cases and cause a 'hydraulic lock'.
Soo.... if you pulled the rod out from the clutch side with the bike leaned over and engine oil in the cases, this could possibly have happened to you. Possibly.
If you want to ensure that it did not, simply remove the slave cylinder and clean any oil out that is on the outer cases and on the piston of the slave cylinder, then re-install it. Simple as that.

The Shop

See All »
Moto520
Profile picture for user Moto520
Posts
3636
Joined
2/4/2013
Location
Schaumburg, IL, USA
Moto520 1/28/2020 12:38pm
1/28/2020 12:38pm
mxrose3 wrote:
So what they are saying in this video is that regular engine oil could get between the slave cylinder and the outer cases and cause a...
So what they are saying in this video is that regular engine oil could get between the slave cylinder and the outer cases and cause a 'hydraulic lock'.
Soo.... if you pulled the rod out from the clutch side with the bike leaned over and engine oil in the cases, this could possibly have happened to you. Possibly.
If you want to ensure that it did not, simply remove the slave cylinder and clean any oil out that is on the outer cases and on the piston of the slave cylinder, then re-install it. Simple as that.
Hey man....sincere thanks! This one was confusing me and i wanted to double check with everyone. Good advice and it's appreciated.
2
DB97
Profile picture for user DB97
Posts
1181
Joined
7/28/2016
Location
Orlando, FL, USA
DB97 1/28/2020 6:00pm
1/28/2020 6:00pm
Moto520 wrote:
Hey man....sincere thanks! This one was confusing me and i wanted to double check with everyone. Good advice and it's appreciated.
Make sure to get both gaskets needed to re mount the slave cylinder it will leak otherwise. Happened to me when I installed the rekluse slave and didn't wait for gaskets.
Kawinick191
Profile picture for user Kawinick191
Posts
12
Joined
11/18/2020
Location
San Diego, CA, USA
Kawinick191 2/8/2021 9:15pm
2/8/2021 9:15pm
Moto520 wrote:
so......while i was replacing my clutch with some Rekluse Torq-drive components i pulled out the push rod while there was oil in the tranny. I guess...
so......while i was replacing my clutch with some Rekluse Torq-drive components i pulled out the push rod while there was oil in the tranny. I guess i wasn't supposed to do this because the oil can work its way into the clutch master cylinder. Anyone else make this mistake? Advice on whether i should rebuild the clutch components or not?
How do you like the rekluse?

Post a reply to: 2019 KX450 Hydraulic clutch