[ledsel]

Can anyone tell me anything about this clutch ? Is it any good ,Has anyone ever used one and what machine does it come from.

 

[silver sledder]

Can anyone tell me anything about this clutch ? Is it any good ,Has anyone ever used one and what machine does it come from.

I am seeking info too. I assumed mine was an early Powerbloc until I took it apart today and found Eastern industries stamped into it. It works on same principle as Powerbloc. The little screw in caps that hold the weights inside the sliding plastic blocks were brittle and shattered when I tried to take them out. Interestingly, the powerbloc cap threaded in. Aside from that, there was no interchangeability with other Powerbloc parts I have. I wonder if this was a forerunner or competitor to Powerbloc as they were both manufactured in Drummondville Quebec? Mine is for a 3/4" threaded shaft, I assume early skidoo, but could be others.

 

[BC_Dan]

Welcome, silver sledder!

I've never seen one of those, interesting design. The original poster never got a reply in 9 years (until yours!) so not many other people have seen that design either.

 

[silver sledder]

I chimed in as the only reference to this clutch I could find while researching this unit on the web was this single post 9 years ago. So now there are two posts. My limited research thus far leads me to believe that the early power blocs were all steel units with 4 siding blocks perhaps like this Eastern clutch then Powerbloc redesigned to be 3 sliding blocks in the 70's. Mine is a rusty weathered unit, hardly worth the effort but I might clean it up and spin it onto one of my old doos just to see if it works.

 

[BC_Dan]

That's pretty amazing. You would have thought there would be something written by someone regarding it. Post pics as you go, I think it would be interesting to see how it works!

 

[dando127]

Well.....I found one of these clutches too.....and again, this was the only reference I could find. Mine was threaded onto a 1970 TNT 292 motor.... no year on it, just the words "Eastern Industries Drummondville".

The mystery continues.........

 

[Motorman45]

These look just like an old version of a powerblock clutch. i believe they were based in Drummondiville.

 

[dando127]

Here is a thread from a different forum with a bit more info....

Power block clutch. Yes or no? | oldskidoosleds and Vintage Sea Doos

I got a 73 oly 340 it has a power block clutch on it. Can't find much info on the power blocks are they good? Would I be better off with an original ski doo clutch? Anybody running these clutches any

oldskidoosleds.freeforums.net

 

[Rene76]

Can anyone tell me anything about this clutch ? Is it any good ,Has anyone ever used one and what machine does it come from.

 

[Rene76]

 

[kccats]

Looks alot like an old duster

 

[snowmoer]

Yep, Looks like a Comet Duster to me too.