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left cover plate for racing

  • Thread starter Thread starter wera racer
  • Start date Start date
Pics as requested.
Left hand crank end with rotor split off the center boss, starter clutch retaining screws shortened, loctited, and peened over lightly.
When we need to replace the starter clutch - and we're sure to - all I have to do is grind off the peened ends of the screws & remove.
 
Shortened cover in place.
5mm plate, approx 4mm wall tube insert and 8mm end cap, all TIG welded.

The owner/rider shortened it and it should have been 10mm shorter...
He knows I'll laugh at him if he decks it now.

Easy.
 
GregT said:
Shortened cover in place.
5mm plate, approx 4mm wall tube insert and 8mm end cap, all TIG welded.

The owner/rider shortened it and it should have been 10mm shorter...
He knows I'll laugh at him if he decks it now.

Easy.
Click to expand...

Nicely don, thanks. My plate from Murdoch Racing arrived yesterday. Will post a pic when it's installed.
 
GregT said:
Shortened cover in place.
5mm plate, approx 4mm wall tube insert and 8mm end cap, all TIG welded.

The owner/rider shortened it and it should have been 10mm shorter...
He knows I'll laugh at him if he decks it now.

Easy.
Click to expand...

Greg, I installed the drag flat cover plate but I'm not thrilled with it. The crank sticks out quite a bit and I'm not sure that would pass WERA race tech inspection. And I don't want to cut the crank end off as this may revert to a street bike some day. I like the TIG work you did on yours and mine could be even shorter because I'm not going to use the starter. I can weld but don't have access to TIG. If I sent you my stock cover, what would you charge to make one like yours? Alternatively, I could send you the flat drag cover and an aluminum "cap" could be TIG-welded to it. That might be the best thing to do. Your thoughts? Rick
 
Remember I'm half a world away from you...surely there must be someone local to you who could fabricate the extension and TIG it on ?
Where there's a racing community there are the support services. This is just the sort of little job a lot of car race shops can do easily.

If all else fails, sure, but the freight costs will probably be more than the job iself....
 
GregT said:
Remember I'm half a world away from you...surely there must be someone local to you who could fabricate the extension and TIG it on ?
Where there's a racing community there are the support services. This is just the sort of little job a lot of car race shops can do easily.

If all else fails, sure, but the freight costs will probably be more than the job iself....
Click to expand...

I forgot, my apologies.
 
GregT thats a very clean starter clutch set-up you have there. Mine is the same principal, but doesnt look as good. . .
 
Okay, so here's what I did. Using the Alumalloy aluminum "brazing" magical, mystery stuff and some aluminum tube and flat plate, I fabricated a crankshaft cover that is "aluma-brazed" to the drag racing cover plate. Good to go. :o

cover.jpg
 
Not quite enough?

Not quite enough?

wera racer said:
Okay, so here's what I did. Using the Alumalloy aluminum "brazing" magical, mystery stuff and some aluminum tube and flat plate, I fabricated a crankshaft cover that is "aluma-brazed" to the drag racing cover plate. Good to go. :o

cover.jpg
Click to expand...
But is it good to go sliding across a track and field?
Myself, I would buttress that cylinder with some triangular plates welded on. That would distribute the impact over the main plate.
Bill
 
That should be enough - the idea is that it's energy absorbing rather than a skid plate...
I've pulled plates like that off crashed bikes & found that the tube distorts and will probably touch the crank but it's absorbed enough energy that the crank isn't bent.
When these big old girls go down they don't balance on the crank end - it's always the footpegs, motor and bars suffer on the left.
 
I know this thread is been static for a while but I am doing this same conversion for my gs1000. I was wondering if you WERA still have your starter clutch or what you ended up doing to start the bike? The picture is no longer active and just trying to figure out what ya did. thanks

matt
 
As a follow up to what has been said, the bike went down on the plate just prior to Christmas. Scarred the end cap and distorted the tube slightly but it didn't touch the crank which remains straight. Cut the end cap off, machined up a new one and rewelded....job done.

Moral - don't put the owners brother on the bike even if he is pretty good - he was running fourth in a race for pre 89 bikes which the owner was leading on his FZR600....Tried a bit hard to get round a CBR600
 
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