Hydraulic clutch

The "Pimp my Ride" section for Soviet bloc bikes. Everybody seems to have their own custom add-ons, modifications & accessories. Share your tips and post pictures of them here.
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This is the place for topics concerining modifying and accessorizing your Ural or Denpr.
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windmill
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Re: Hydraulic clutch

Post by windmill » Thu May 25, 2023 6:13 pm

Trumpetwasher wrote:
Thu May 25, 2023 5:19 pm
Got the slave cylinder today.
Image
It goes between the legs of the retainer where the clutch release lever retainer passes through.
1685049501-picsay.jpg
IMG_20230518_160038923.jpg
And be aware, it's not an X-ring on the cylinder, but 2 tiny O-rings of an uncommon size.
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Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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Trumpetwasher
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Re: Hydraulic clutch

Post by Trumpetwasher » Thu May 25, 2023 7:20 pm

Thanks! Explains the "2 O rings" description of the clutch slider:

2012 to 2016; 8.104-03206-01, 2 O-ring, 2_mm........probally 23mm per phughes, need to confirm.
2016 cT Flat Black Custom (Black Tractor)
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aduthie
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Re: Hydraulic clutch

Post by aduthie » Fri May 26, 2023 12:42 am

Trumpetwasher wrote:
Thu May 25, 2023 5:19 pm
“Where does this go?”
Yonder, I think! I suspect it could be left out, but haven’t tried to install mine yet.

7867FD26-3722-4DB4-84F3-F446A0D1971E.jpeg
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Andrew Duthie / Nashville Motorcycle Repair / Ural and Vintage Sales & Repair

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Trumpetwasher
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Re: Hydraulic clutch

Post by Trumpetwasher » Thu Jun 01, 2023 7:26 pm

Finally decided to go with a premade hose. With any luck, I'll get the clutch assembly switched over tomorrow afternoon.
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2016 cT Flat Black Custom (Black Tractor)
Black Power Train
3.89 Final Drive
Reverse Hand Shift
Sidecar Power Panel
Handlebar Power Outlet
Light Tint Aviation Grade Windscreens
Deluxe Seating
Sidecar Side Panels
Armrests
Double-Spring Saddle
Santamaria Foot Rest
Custom Nose Art
Dietz Sidecar Headlight (Night Blaster 5000)
Dnepr Leg Shields
XMT-MOTO Hand Guards
All LED lights
FXCNC Model 15 steering damper

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Trumpetwasher
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Re: Hydraulic clutch

Post by Trumpetwasher » Sat Jun 03, 2023 10:22 pm

1685845287-picsay.jpg
Do you know how close I was to having this thing on? The cylinder fits the hole (be careful the rod doesn't fall out while you're trying to insert the cylinder), however, the holes in the clamp and the spacer are too small. The pictures show a rod with a cotter pin in it. What the bike has is a shouldered socket head bolt and a nylock nut. Stupid idiot that I am, I didn't measure the bolt diameter, but the nylock took a 10mm socket on an extension and a 1/4 ratchet to work. Oh. And the bolt is mild steel. Rusty as heck. I'm not sure the spacer is necessary as there is adequate material on the clamp to allow it to be enlarged the small amount that the bolt requires. I can pick up a spacer at a local machine shop. I thought about a smaller bolt, but, I forgot to measure it before I stuck it back in.
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2016 cT Flat Black Custom (Black Tractor)
Black Power Train
3.89 Final Drive
Reverse Hand Shift
Sidecar Power Panel
Handlebar Power Outlet
Light Tint Aviation Grade Windscreens
Deluxe Seating
Sidecar Side Panels
Armrests
Double-Spring Saddle
Santamaria Foot Rest
Custom Nose Art
Dietz Sidecar Headlight (Night Blaster 5000)
Dnepr Leg Shields
XMT-MOTO Hand Guards
All LED lights
FXCNC Model 15 steering damper

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windmill
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Re: Hydraulic clutch

Post by windmill » Sun Jun 04, 2023 12:35 am

Another thing they changed, my 2007 Patrol uses a straight pin retained by a cotter pin that fits the retainer as delivered. I recently purchased an old Unimat lathe/mill which I will use to turn down the slave cylinder to fit and make a custom retainer bolt.
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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Trumpetwasher
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Re: Hydraulic clutch

Post by Trumpetwasher » Sun Jun 04, 2023 8:42 am

windmill wrote:
Sun Jun 04, 2023 12:35 am
Another thing they changed, my 2007 Patrol uses a straight pin retained by a cotter pin that fits the retainer as delivered. I recently purchased an old Unimat lathe/mill which I will use to turn down the slave cylinder to fit and make a custom retainer bolt.
Barry, does the parts list show what size that bolt is on a 2016?
2016 cT Flat Black Custom (Black Tractor)
Black Power Train
3.89 Final Drive
Reverse Hand Shift
Sidecar Power Panel
Handlebar Power Outlet
Light Tint Aviation Grade Windscreens
Deluxe Seating
Sidecar Side Panels
Armrests
Double-Spring Saddle
Santamaria Foot Rest
Custom Nose Art
Dietz Sidecar Headlight (Night Blaster 5000)
Dnepr Leg Shields
XMT-MOTO Hand Guards
All LED lights
FXCNC Model 15 steering damper

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windmill
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Re: Hydraulic clutch

Post by windmill » Sun Jun 04, 2023 9:31 am

Trumpetwasher wrote:
Sun Jun 04, 2023 8:42 am
windmill wrote:
Sun Jun 04, 2023 12:35 am
Another thing they changed, my 2007 Patrol uses a straight pin retained by a cotter pin that fits the retainer as delivered. I recently purchased an old Unimat lathe/mill which I will use to turn down the slave cylinder to fit and make a custom retainer bolt.
Barry, does the parts list show what size that bolt is on a 2016?
The thread is m6 X 30mm shoulder bolt, but I don't recall the shoulder length. A straight m6 X 30mm cap screw should work with a bushing on the cap end. There are 6mm ID X 8mm OD bushings available but probably not at your local hardware store.

These should work, might need to be trimmed down in length.
https://www.amazon.com/uxcell-Bearings- ... r=1-6&th=1
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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Re: Hydraulic clutch

Post by Trumpetwasher » Wed Jun 07, 2023 6:54 pm

I'm going to try a 6mm cap screw. The hole in the clamp is 6mm. I have some 6x8 bushings. Right now, getting time to do it is the problem. 🙁
2016 cT Flat Black Custom (Black Tractor)
Black Power Train
3.89 Final Drive
Reverse Hand Shift
Sidecar Power Panel
Handlebar Power Outlet
Light Tint Aviation Grade Windscreens
Deluxe Seating
Sidecar Side Panels
Armrests
Double-Spring Saddle
Santamaria Foot Rest
Custom Nose Art
Dietz Sidecar Headlight (Night Blaster 5000)
Dnepr Leg Shields
XMT-MOTO Hand Guards
All LED lights
FXCNC Model 15 steering damper

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Re: Hydraulic clutch

Post by windmill » Sun Jun 11, 2023 8:47 pm

Turned down the cylinder to 22mm with my newly acquired Unimat. That leaves the wall of the cylinder 1mm thick which should be fine, but the groove for the O-rings is too shallow now and can't be deepened. I figure I'll make a silicone seal in place by putting a couple of layers of masking tape along the groove edges, filling it with silicone sealant, and let it set before putting it in. Since the cylinder is stationary. I think that will be adequate.
IMG_3693.JPG
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Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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Re: Hydraulic clutch

Post by Trumpetwasher » Mon Jun 12, 2023 7:41 pm

Another speed bump. The ears that the mounting bolt goes through are too thick to allow the clamp to center. I ground a little off of the sides of the clamp, but still need to find a way to take material out of the inside of the cast ears. There isn't much room, without taking the transmission out. Removing the battery won't give enough room. I'm thinking maybe a Dremel tool with a right-angle drive. Ideas?
2016 cT Flat Black Custom (Black Tractor)
Black Power Train
3.89 Final Drive
Reverse Hand Shift
Sidecar Power Panel
Handlebar Power Outlet
Light Tint Aviation Grade Windscreens
Deluxe Seating
Sidecar Side Panels
Armrests
Double-Spring Saddle
Santamaria Foot Rest
Custom Nose Art
Dietz Sidecar Headlight (Night Blaster 5000)
Dnepr Leg Shields
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All LED lights
FXCNC Model 15 steering damper

jeffsaline
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Re: Hydraulic clutch

Post by jeffsaline » Mon Jun 12, 2023 7:49 pm

My suggestion without personal experience is don’t modify the tranie case back. Instead make or modify the clamp. Once you modify the case back it will probably be difficult to return to the stock configuration if you want or need to.

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Re: Hydraulic clutch

Post by phughes » Mon Jun 12, 2023 8:00 pm

I agree with Jeff. With guns we always say, modify the part, not the gun. Why destroy an expensive case to fit a $60 accessory?
Phil

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Re: Hydraulic clutch

Post by Trumpetwasher » Tue Jun 13, 2023 6:42 am

The area where I need too remove a very small amount of material won't prevent using the original release. There appear to be casting marks, parallel lines on the inside of the casting "ears" about a millimeter above the bottom edge that prevent the cage that holds the captive 8mm Nylock nut from clearing. It would be similar to removing powder coat. Anyway, it requires a 90° Dremel attachment in order to have work room. Coming Sunday.
2016 cT Flat Black Custom (Black Tractor)
Black Power Train
3.89 Final Drive
Reverse Hand Shift
Sidecar Power Panel
Handlebar Power Outlet
Light Tint Aviation Grade Windscreens
Deluxe Seating
Sidecar Side Panels
Armrests
Double-Spring Saddle
Santamaria Foot Rest
Custom Nose Art
Dietz Sidecar Headlight (Night Blaster 5000)
Dnepr Leg Shields
XMT-MOTO Hand Guards
All LED lights
FXCNC Model 15 steering damper

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windmill
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Re: Hydraulic clutch

Post by windmill » Sun Jun 25, 2023 6:51 pm

I hit the same issue.... no problem....grind .5mm off each side plate with my Unimat. But now...... because I reduced the diameter of the slave cylinder the retainer is too short.....

Looks like I'll need to make a new retainer from scratch. Think I'll do a simplified one-piece unit.
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018/20 M70

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