RGM Spindle Positive Location Kit

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O' wise Norton soothsayers riddle me this, RGM have a new spindle lock system for the rocker spindles.

It seems to my untrained eye that it's over engineered?

What's the advantage of RGM's kit over the Ebay plates you can get with the slot on the back to lock the spindle in place?

Obviously RGM went to some trouble to design these plates, but I my tiny little brain can't figure out why such an elaborate design?


Discuss . . . .


Thanks

Kevin
 
I havent seen the RGM ones but I guess they are working on the assumption that if its different then people will buy, I did a batch of replica Dunstall ones, the cast alloy finned type, which on the original Dunstall ones you had to use the inner locating plates, I made mine which have 2 hardened pins for each shaft to eliminate the need for the 2 pegged oval plates. always thinking...
 
click said:
O' wise Norton soothsayers riddle me this, RGM have a new spindle lock system for the rocker spindles.

It seems to my untrained eye that it's over engineered?

What's the advantage of RGM's kit over the Ebay plates you can get with the slot on the back to lock the spindle in place?

Obviously RGM went to some trouble to design these plates, but I my tiny little brain can't figure out why such an elaborate design?


Discuss . . . .


Thanks

Kevin
Click to expand...

I'd like to come in with an alternative view here, but I couldn't work it out either!
Sometimes being reassured that it's 'not just me' counts for something ;)
 
thanks L.A.B for posting Reg's mod, a grub screw to stop the shaft turning. not sure why Reg says an alternative is to modify the shaft hole.
 
Thanks for the replies lads.


Anybody have a link to a supplier who sells the one piece plate with the wide tang at the back to lock the spindle in place? I have come across the before but I've been Googl'ing like crazy & can't find any suppliers?

Thanks

Kevin
 
Thanks for the heads up guys.

I was actually on both of their sites and didn't see the plates!!! Old age creeping in :mrgreen:
 
I had the pin location problem too. The problem was the bores were drilled too deep causing the spindles to sink too deep into the head thus unlocating itself from the spindle locking plates.
My fix was to go to the hardware store and buy a 1/4" x 1" coil spring and cut about 3 coils off, insert it into the inner bores of the exhaust rockers and then insert the spindles.
They would protrude about an 1/8" and spring just below the surface creating a side load against the spindle plate.
I also bent the tangs on the locking plate out a tad to clear the gasket.
On the intakes I did the same thing but since the 2 spindles meet in the middle I used just 1 spring.
And all for the cost of about $1 USD

Of course if you want the bling of the rocker covers at the ungodly prices.........
 
Guido said:
I had the pin location problem too. The problem was the bores were drilled too deep causing the spindles to sink too deep into the head thus unlocating itself from the spindle locking plates.
My fix was to go to the hardware store and buy a 1/4" x 1" coil spring and cut about 3 coils off, insert it into the inner bores of the exhaust rockers and then insert the spindles.
They would protrude about an 1/8" and spring just below the surface creating a side load against the spindle plate.
I also bent the tangs on the locking plate out a tad to clear the gasket.
On the intakes I did the same thing but since the 2 spindles meet in the middle I used just 1 spring.
And all for the cost of about $1 USD

Of course if you want the bling of the rocker covers at the ungodly prices.........
Click to expand...


Depends on which particular problem you have. On my 750 one spindle was so worn and loose in the head that it needed rebrushing on a jig boring machine.
Don’t forget these spindles are meant to be tight in the head requiring the head to be heated right up to remove/replace.
 
Hi

RGM s product does look complicated. One piece items milled to fit straight into the slot on the spindle seem to be the best way to go.
As to price!
I brought a bike that came with alloy end plates with a allen head used to locate the slot (with the threads turned off) I liked them & use a stock plate to use as a template. Drill the holes for the bolts & then shape with a sander. The polish up nice. One less area to leak. Id like stainless for the bling though:D

Chris
 
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