Posts Tagged ‘Clutch’

Clutch Slave Cylinder

Monday, April 6th, 2009

Now I meant to do this last week, but I didnt get around to it, I cant remember why, but that is no surprise, my memory is awful and unless I write it down there is only about 50% chance I will remember it!

I had previously posted that I had made two pillars for the clutch slave cylinder but was waiting for the studs to dry before attempting to assemble it. Well when I subsequently measured it all up, I had made the pillars for the standard length pushrod, but this meant the cylinder hit the dry sump pump. So after a quick redesign the pillars were shortened aswell as the pushrod and it was assembled up.

Clutch Slave Cylinder All Mounted Up
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Clutch Slave Cylinder Mounts

Monday, March 23rd, 2009

To mount the clutch slave cylinder I needed to make up some pillars and a boss for the three mounting holes. I decided to make the pillars first and then, once mounted worry about the boss. I decided to helicoil some ally tube we had and then glue in a stud one end of the pillar and tap the other end for a bolt.

Helicoiled Pillar

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Clutch Slave Cylinder

Sunday, March 15th, 2009

I have been thinking about the clutch for a while. Having machined off one of the mounting pillars to mount my gear pot, the original slave cylinder arrangement was looking a little weak! I had planned on fabricating a plate from the dry sump pump to mount the cylinder, but Paul Dobb brought a slave cylinder for me to have a look at. I had seen them on the Internet before, but didn’t want to shell out more cash not really knowing if it was going to fit, so Paul bringing one around was really good! Anyway, it all seemed to fit, even if I need to make a custom mounting kit to miss the pump, so here it is. It came from SBD and mounts to their dry sump pump also, but lots of places seem to sell similar things! 

Clutch

Finishing The Clutch

Monday, October 20th, 2008

So, after building up the basket and plates it was time to throw it into the engine. now, when I took the basket off, I undid the big nut with an airgun. That was all fine and worked a treat, but now I had to torque it up. And of course I don’t have the proper Suzuki tool for holding the basket, so i had to botch one up double snappy.So, after last weeks upsetting result of thinking I didn’t have the right spring plate, I got stuck in with the clutch. Not really too much to say as it pretty simple. The only slight difficulty was finding a method of holding the basket from turning when doing up the bolts. In the end I used 2 bits of steel in between the fingers as shown, clamped in the vice.

Basket In Vice

Torquing Up The Bolts

 I was told that after torquing up the bolts, it was sensible to tack weld them so there was no way of them coming lose. Not to sure about this as it seems like a one hit wonder, but I suppose I can easily, he hopes, just grind the tack off if I ever need to…. (famous last words!)

Welded Up Nuts
So, after building up the basket and plates it was time to throw it into the engine. now, when I took the basket off, I undid the big nut with an airgun. That was all fine and worked a treat, but now I had to torque it up. And of course I don’t have the proper Suzuki tool for holding the basket, so I had to botch one up double snappy.

Making The Tool

So some off cut angle and plate soon became the worlds most over engineered clutch basket holding tool! But hey, it shouldn’t brake!

Tool In Use
All Done

 The engine is now mechanically all done apart from the covers, which I should be getting back on Tuesday/Wednesday depending on posting times.

Modifying The Clutch

Monday, October 13th, 2008

Having done a bit of research, always a dangerous thing, I have come across a few instances of the fingers on the clutch basket deciding that life is too difficult and breaking off. Now in itself this is not the end of the world and certainly would really slow you down much as there are the other fingers to transmit the torque, thats not to say its a brilliant situation as it will now overload the remaining fingers, but was does tend to happen is that when they come off they fire straight off into the crankcase, which is a MAJOR problem.

My first solution was to weld a ring around the outside of the fingers to help to stop them from coming off. In fact this idea was suggested by Dad who used to do it in his karting days! But we then decided against it due to material degradation due to HAZ. So I bought myself a billet basket. Now some people will tell you they are a performance upgrade, but at my level I beg to differ!

the clutch still needed all of the internals from the original, it is just a new basket, and so I needed to drill the rivets out of the original.

Drilling Out The Original Rivets

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