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Post by huggy76 on Jun 21, 2013 18:21:54 GMT 1
How do most people repair the ends of the power valves to remove the play at the joiner between the barrels?
I had a pair sleeved and then machined back to the correct shape and dimensions before but this is obviously quite time consuming and expensive to get done.
Was wondering if people had a simpler way of doing it other than replacing them.
Thanks
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Post by nige on Jun 22, 2013 8:52:44 GMT 1
Built mine up with weld then re-shaped . Is a pain staking process re-harping though.
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Post by huggy76 on Jun 22, 2013 11:40:30 GMT 1
Thanks nige, what sort of welding please?
I didn't think that they would mig weld, did you tig them?
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Post by billyboy on Jun 22, 2013 17:31:34 GMT 1
you cant mig weld ally ,needs tigging then reprofiling , i remember we used to have some stuff at work that you could put on ally with a blowtorch , almost like solder ,seen it at the classic bike shows too , cant help with what it's called tho'
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robw
Thrash Merchant
Posts: 362
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Post by robw on Jun 22, 2013 18:10:08 GMT 1
I think it's called Lumiweld
Rob
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Post by nige on Jun 23, 2013 7:34:28 GMT 1
Was tigged mate. Not sure how good that limo weld is but watched a vid on utube and it looks the dogs dangles .
I'm thinking of getting new centre joiner and modding it to put couple of pinch screws to clamp to valves as system set up leaves it pron to wear.
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Post by huggy76 on Jun 23, 2013 11:38:18 GMT 1
Hmmm, now I put my brain into gear just remembered that we have got a posh new ally mig welder at work.
Might have to let the welders have a go at a really knackered set to see how they get on.
Sounds too easy though....
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Post by classicjap on Jun 23, 2013 12:12:14 GMT 1
I built some up with JB Weld and reprofiled it - still working fine
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phil38
Thrash Merchant
Posts: 426
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Post by phil38 on Jun 23, 2013 14:22:07 GMT 1
Got mine welded up then milled flat. Joint piece avaiabke from Yamaha. I only needed the bottom half and yam list it as two parts. The guy who welded it turned a brass plug to go in the hole in the end to stop it blowing though.
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Post by Dieseldog on Jun 27, 2013 15:29:33 GMT 1
Built mine up with that liquid metal stuff (supposed to be strong enough to drill and thread - get it from auto parts suppliers) then filed down to shape.
Hasn't been used yet only ran engine up on bench so far - but appears to work ok.
Should have bike on road soon, so will see how long it lasts.
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