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Post by JonW on Jul 4, 2020 3:08:49 GMT 1
We've all talked about the replacements from the banshee sellers in the USA, most obvious being Vitos. But... this is just a standard bush as far as i know and should be available from the catalogue. Buying a US$25 bush and paying Vitos exy postage seems crazy as the idler itself is only US$50 new is the USA. So, has anyone bought a replacement bush from the likes of simply bearings or mcmaster carr and found one that is a good fit? FYI I was originally going to send a couple of old idlers to Rob to rebush when i was in the uk this year but obviously C-19 put a stop to that trip but not my engine building.  And... for the postage cost to and from here I may as well just buy new OEM idlers from the USA, so sending old idlers to the UK isnt going to happen. Instead, I figured I'd try and find the bush sizes and exact type and try swapping one myself, its easy enough to make up a tool on a lathe to do it using a vice/press etc. Or has no one but Rob ever done this bush swap on here? |
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Post by oldelsieboy on Jul 4, 2020 7:12:48 GMT 1
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Post by cb250g5 on Jul 4, 2020 7:54:42 GMT 1
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Post by jon on Jul 4, 2020 9:30:56 GMT 1
I’ve used an oilier bush from simply bearings. As you said I made a tool on the lathe to support when pushing in and out.
It did improve it, but to be honest there was still the slightest of play.
I may try a solid brass bush next time, or may even just bite the bullet and get one of Norbos with the bearing fitted.
My first LC had an worn idler. It scuffed the backlash number off the back of the secondary drive so I have no idea if they are the magic 155.
Jon
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Post by cb250g5 on Jul 4, 2020 10:20:31 GMT 1
Bugger, Bugger, Bugger. Just tried to cut a 10mm piece off this on the lathe, but the parting tool caught on the split part and trashed the whole bloody thing. Ordered another 1.... More delays.
I reckon the one I pressed out was 9mm long, but the gap betwixt thrust washer and D washer is at least 10, which ain't helping things any.
Think I'll default to using a traditional hacksaw and file next time. Or maybe a slitting saw on the mill?
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Post by headcoats on Jul 4, 2020 10:32:46 GMT 1
I’ve used an oilier bush from simply bearings. As you said I made a tool on the lathe to support when pushing in and out. It did improve it, but to be honest there was still the slightest of play. I may try a solid brass bush next time, or may even just bite the bullet and get one of Norbos with the bearing fitted. My first LC had an worn idler. It scuffed the backlash number off the back of the secondary drive so I have no idea if they are the magic 155. Jon Do you have a link for yours please Jon |
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Post by Tobyjugs on Jul 4, 2020 11:35:53 GMT 1
Bugger, Bugger, Bugger. Just tried to cut a 10mm piece off this on the lathe, but the parting tool caught on the split part and trashed the whole bloody thing. Ordered another 1.... More delays. I reckon the one I pressed out was 9mm long, but the gap betwixt thrust washer and D washer is at least 10, which ain't helping things any. Think I'll default to using a traditional hacksaw and file next time. Or maybe a slitting saw on the mill? Did you support it, as in slide it over a tight fitting rod and the hold both them in the jaws before machining? |
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Post by cb250g5 on Jul 4, 2020 11:41:51 GMT 1
Did you support it, as in slide it over a tight fitting rod and the hold both them in the jaws before machining? Bit of wooden dowel. Not got through very far at all, when it sort of peeled open at the split. Would have been fine if it wasn't a split bush. Thinking about it, I'll use either a junior hacksaw or my band-saw next time, with the split at the end of the cut. More haste, less speed. |
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Post by alankelly on Jul 4, 2020 11:51:49 GMT 1
Hi All
If you just need the bearing I would drop a PM to Rob 4L04EVER as for his refurb service It was me who sourced the supplied the correct size bush 17OD by 15ID by 10 long in quantities of 10 from my local bearing supplier so he may be able to sell you one
I would rather do this than sell direct to the forum as feel it would be going behind his back to make a buck which is not me
Best wishes Al
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Post by alankelly on Jul 4, 2020 12:04:03 GMT 1
I’ve used an oilier bush from simply bearings. As you said I made a tool on the lathe to support when pushing in and out. It did improve it, but to be honest there was still the slightest of play. I may try a solid brass bush next time, or may even just bite the bullet and get one of Norbos with the bearing fitted. My first LC had an worn idler. It scuffed the backlash number off the back of the secondary drive so I have no idea if they are the magic 155. Jon Hi Jon Best material if you want to make from scratch would be phosphorus bronze Did this with my gear before I managed to find a possible off the shelf Just remember to add a couple of groves to hold the oil as it is only “splash” lubricated   Best wishes Al |
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Post by cb250g5 on Jul 4, 2020 12:27:49 GMT 1
That was my original plan, before I discovered I could get a 25mm one for a quid.
Would have been quicker to make one though, as it turns out...
I was going to try & cut a spiral in to carry the oil, screwcut it on the lathe at the coarsest thread possible.
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Post by JonW on Jul 4, 2020 14:04:53 GMT 1
Thanks guys, great info! I did contact Rob a few weeks back, but hes not replied so I figured I just ask on here and it seems I am not alone in wanting to do this work. Alan, I would probably use up at least 10. lol. I have a bunch to do and my local mates will all want theirs doing as well I bet. "Make a tool and have a bunch of bushes on the bench = new friends" |
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And... for the postage cost to and from here I may as well just buy new OEM idlers from the USA, so sending old idlers to the UK isnt going to happen. Instead, I figured I'd try and find the bush sizes and exact type and try swapping one myself, its easy enough to make up a tool on a lathe to do it using a vice/press etc.
