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Author Topic: that Chinese coupler  (Read 2759 times)

32 coupe

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that Chinese coupler
« on: September 30, 2017, 11:30:52 PM »

When I acquired my changfa engine and st head a number of years ago, a direct drive coupler
was available

The said coupler has a series of o rings stacked on a set of pins that act as a bushing in a
matching drilled faceplate.

The original rubber o rings lasted for a time and needed replacement . I fabricated a set of
new ones from a 1/4" rubber sheet I had about and they lasted about 50 hrs or so.

I bought some delrin and am considering cutting some "bushings" from this material.

Any one else use this coupler and have any experience/input ?




Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"

vdubnut62

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Re: that Chinese coupler
« Reply #1 on: October 01, 2017, 05:04:08 AM »
I think MobilBob talked about these several years ago.  I could be completely wrong . Anyway the gist of the conversation was that the Chinese couplers were a pretty short lived solution. a lovejoy is much better.
  I used the coupler from a Mercedes driveshaft, no problems so far!
Ron
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32 coupe

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Re: that Chinese coupler
« Reply #2 on: October 01, 2017, 05:56:48 PM »
here is a picture to give a better idea

Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"

BruceM

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Re: that Chinese coupler
« Reply #3 on: October 01, 2017, 08:17:14 PM »
I'd measure ID and OD, and look for some reinforced rubber hose that would fit.

38ac

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Re: that Chinese coupler
« Reply #4 on: October 05, 2017, 12:48:19 PM »
 I read enough bad prior to building my set that I avoided them and went with belt drive at 1 to 1. Your experience is matching about everyone else's. That being said Chinese rubber is mostly junk in my experience. Were I wanting to repair one I would check Lovejoy's web site and find out what material they use in their severe duty elements  and then check McMaster Carr or Ebay for some stock andmake up a set,, and a set of spares. 

I know,not much help,,,
Collector and horder of about anything diesel

xyzer

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Re: that Chinese coupler
« Reply #5 on: October 05, 2017, 04:04:10 PM »
Most couplings life is dependent on alignment, and material quality. They are great because they work for awhile when not aligned. I would spend some time get it aligned the best you can then maybe use some hard plastic tubing or rubber. Cut a set of spares while you're at it.
Dave
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