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 Pulley fun & games

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Tractorhead
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PostSubject: Pulley fun & games   Pulley fun & games Icon_minitimeSun Dec 04, 2016 7:10 pm

So the engine drives a toothed gear and I need it to drive a normal V belt pulley at the other end. Hmmmm
Pulley fun & games DC54DCFC-2D59-4BB1-B2A8-6B838D826BE5
The brown pulley here is the noisy idler removed from my Build-Off entry so no worries about wrecking that one ~ chop the middle out and weld in the toothed cog thing...
Pulley fun & games 6D960D61-267B-4EFC-89FD-D4AACA6A6408
It actually worked!

Next problem ~ a pulley shaft has ghastly looseness in the bearing. To access the bearing the pulley must be removed first but is rusted on solid, absolutely solid and in a fight space with no chance of getting a puller anywhere near it, and it'd only bend the sides anyway.  Sticky problem but then I came up with this ~ weld a big nut to the pulley so the bolt pushes on the shaft...
Pulley fun & games C6CEF073-9064-47C2-A9C9-E93529489E4C
Maybe that's a known trick already but it's new to me and it worked a treat so it might help any of you lot too I hope. You cut off the nut and clean up the pulley after.
Pulley fun & games 622ABC34-62E2-44E7-836B-49AD4D6715DF
Now I can get to that knackered bearing but...
Pulley fun & games A5CDFCA9-8F2C-4DC1-966D-80AD0AED48CB
The bearing is like new and the shaft has been rubbing itself to death inside the bearing!!!  Pulley fun & games 2429134702  see how the shaft has worn away.  Horrible.  Saves buying a new bearing so that's good.
My plan is to JB weld the bearing onto the shaft to take up that slack and hope I get it centred...  Little job for tomorrow  scratch
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Doug
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeSun Dec 04, 2016 7:40 pm

The shaft rotated inside the bearing? Thats strange if the bearing was still in good condition.

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Tractorhead
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeSun Dec 04, 2016 7:59 pm

Yeah Weird. I suppose it usually depends on being a tight fit so the centre of the bearing rotates with the shaft, but if it's a bit loose to start it'll only get worse? JB to the rescue Embarassed
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Tractorhead
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeMon Dec 05, 2016 5:09 pm

Pulley fun & games FB4C949F-A286-4DE5-89B5-1855EC4743FA
JB weld. Fingers crossed Shocked
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MatthewD
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeMon Dec 05, 2016 5:57 pm

Is that your powered bagger? That's strange that the bearing rubbed the shaft. Hopefully the JB weld holds.
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Tractorhead
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeMon Dec 05, 2016 6:21 pm

@MatthewD wrote:
Is that your powered bagger? That's strange that the bearing rubbed the shaft. Hopefully the JB weld holds.
Yep, powered bagger, but not that one in the vid, I'm starting from scratch with an early Countax sweeper unit, powered by 114cc dinky little engine and clutch shamelessly robbed off a perfectly good Atco cylinder mower alien
& that worn shaft ~ I bet it was Ridiculous Noisy!! What a Face
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MatthewD
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeTue Dec 06, 2016 1:22 pm

Tidy! Always thought those Westwood/Countax sweepers were cool. My uncle had one for a while but ended up scrapping it because it was so badly rotten and had seized solid due to sitting outside for 15 years.
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Tractorhead
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeTue Dec 06, 2016 6:44 pm

Sounds about right. Rust loves that rubbish paint with no primer Smile
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MatthewD
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeWed Dec 07, 2016 12:13 pm

Yeah, did the JB weld work?
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Tractorhead
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeWed Dec 07, 2016 12:36 pm

Cautious optimism the JB will fix it. Reassembled it all today and it rotates as it should, seem to've managed not to glue the whole thing solid lol!
I've not powered it up yet (waiting for a v belt in post) but it looks good so far. Centre of bearing rotates with shaft as nature intended cyclops I notice the shaft is soft steel, maybe nothing more than mild steel even. Cheapo so no wonder the super hard bearing rubbed it away. pig
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MatthewD
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeWed Dec 07, 2016 5:55 pm

Ah, cheapo steel shafts. Look forward to seeing a vid!
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Tractorhead
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeThu Dec 22, 2016 6:18 pm

Well the JB did a great job. I've run it without any issues.
And for my next trick ~
Pulley fun & games 795C643C-2B81-4C41-A9E5-CF4CA87D6411
This new pulley has an oversize centre hole so I will JBweld the original centre from the busted bearing of the old pulley (can you see why it was noisy?! affraid ).  Luckily they are a near perfect fit so degreased with paint thinners and JB them together albino
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PostSubject: Re: Pulley fun & games   Pulley fun & games Icon_minitimeThu Dec 22, 2016 6:51 pm

Oh boy affraid lol! lol! lol! Pulley fun & games 1098998679
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