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Clutch issues
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  (#1)
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Clutch issues - October 29, 2012, 07:00 AM

I'm working on getting my 83 Honda V45 Magna roadworthy. I've been changing fluids out of everything since it's been sitting for two years outside before I bought it. As I was trying to change the clutch fluid, when I engage the clutch, I'm not getting a lot of fluid getting pushed through. i followed this
and they're moving WAY more fluid than when I'm doing it. On top of that, when I looked inside the master clutch cylinder, there's some milky fluid coming out of where the cylinder is pushing the fluid through. The fluid coming out of the clutch slave is clear. Also, when I have the clutch engaged, kickstand up, when I drop from neutral to first, the bike surges, then the engine stops like if i still had the kickstand down. What am I missing?
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October 29, 2012, 07:20 AM

Clean out the master cylinder


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ELBOWZ
 
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October 29, 2012, 07:40 AM

When I did an engine swap earlier this year the motor had been sitting about a year. The clutch plates stuck together due to the lack of moving during that time. It would surge forward when kicked into first but after riding it and banging through the gear the oil circulated and freed up the plates and all has been good. Might just need a little 'break in' period to get it all working right again if mechanically everything is working properly.


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October 29, 2012, 08:35 AM

Quote:
Originally Posted by CrazyMotorcycleGuy View Post
Clean out the master cylinder
I think I got all of the dried up stuff out, how do I get the master cylinder clean? I initially filled it up and pumped out everything in there. Should I get a speed bleeder? I can use it on the front brakes, too.

Quote:
Originally Posted by Jshep View Post
When I did an engine swap earlier this year the motor had been sitting about a year. The clutch plates stuck together due to the lack of moving during that time. It would surge forward when kicked into first but after riding it and banging through the gear the oil circulated and freed up the plates and all has been good. Might just need a little 'break in' period to get it all working right again if mechanically everything is working properly.
I might have to move the bike out of the back yard and get the front brakes working first.

Thanks CMG and Jshep!
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October 29, 2012, 08:54 AM

I would definitely pull the clutch MC. Clean it out, let it dry, reinstall. Bleed it using a mighty-vac brake bleeder. Same principal. Then go pill the clutch plates/steels. Look for wear or damage. Make sure they are flat and within spec. soak them in oil for a little while while you do the inspection.


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October 31, 2012, 06:55 AM

Looks like I'm hitting Harbor Freight, they have the Mityvacs in stock for $39.99. I can do the brakes then do the clutch. I might just get to ride this thing this week!!!
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October 31, 2012, 04:46 PM

Ha! Harbor Freight has Brake Bleeder and Vacuum Pump Kit on sale for $22.99! I should have picked up a second one.
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November 1, 2012, 09:33 AM

Mityvacs are handy, i have one that is plastic and wish is was metal... It works fine, but it just seems flimsy...

Oh and also: I'm surprised, confused, and impressed that this bike has a Hydraulic Clutch! Sweet!


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November 1, 2012, 02:42 PM

Yes, it does. Shaft drive, too. This is also my first Honda.
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November 4, 2012, 04:08 PM

Quote:
Originally Posted by jrswanson1 View Post
Looks like I'm hitting Harbor Freight, they have the Mityvacs in stock for $39.99. I can do the brakes then do the clutch. I might just get to ride this thing this week!!!
Hey, buddy. Speedbleeders are handy, but you don't really need it and without a proper cleaning it will all be for nil. First, take the line off. Save the crush washers around the Banjo Bolt. Then take off the Master Cylinder. Empty it out, obviously. Once you get the lever off, you will expose the little rubber seal around the plunger. Go ahead and pull it out. Behind that is a snap ring. Use long snap-ring pliers to get that out. The plunger should pull out after that. I expect it to be pretty nasty inside. Clean off the plunger, seals and spring. Then blast out the cylinder with brake cleaner. It is very important to punch out the two small holes in the bottom of the reservoir. Then blast it all out with a lot of air. When you put it all back together, make sure you lube it with brake fluid. You will also need to clean out the slave cylinder. Remove the slave cylinder and pull out the piston. If it's sticky, a quick shot of air in the banjo hole usually does the trick (point it away from your face and cover with a rag, cuz it can shoot out pretty good). Clean all the little seal channels and whatnot. When you put it all back together and are ready to bleed, make SURE you bleed the top, first. By that, I mean the MC. If you don't bleed the top, you'll never build pressure, I promise you. I really suggest that you get a new seal kit. They're only about 23 bucks and it.

Or.... Just take it to Brooks Cycles.


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Last edited by superchickencornermonster; November 4, 2012 at 04:11 PM..
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November 5, 2012, 08:22 AM

superchickencornermonster,

I was hoping to get the clutch working so I could get the bike back in the shed so I could rebuild the clutch and front brake master cylinders in a sheltered place. Cuz this bike ain't moving. It looks like I'll be getting new brake and clutch lines, caliper rebuild kits, master cylinder rebuild kits, and I'll be busy for the next few months. If I can get the parts in, how much would it run to install all of that? You can PM me if you would prefer that.
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My Chicken eats Busa's
 
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November 5, 2012, 11:13 AM

Word... Pm sent.


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↓ dn ʎɐʍ sıɥʇ ↓
 
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November 5, 2012, 11:35 AM

Sounds like buying a new clutch master is a better idea.


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November 5, 2012, 11:59 AM

Quote:
Originally Posted by Dark View Post
Sounds like buying a new clutch master is a better idea.
They don't make them anymore. I found a replacement for the brake cylinder, but not the clutch.
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November 5, 2012, 12:02 PM

I had the same issue on an old V30 (miss that bike). Once I cleaned out the master it worked beautifully. The internals had gotten so gummed up it was disgusting. Sounds like you have a good plan and parts to get her fixed right.

I would have kept the bike forever if a botched repair to fix a blown head gasket hadn't destroyed the motor (shop messed up the timing and refused to repair the ensuing damage).


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