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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Getting the left side chain puller off a rusted axle
Post Info TOPIC: Getting the left side chain puller off a rusted axle
Sprok


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Getting the left side chain puller off a rusted axle
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Any ideas how to get the chain puller off? It's the only good part left on this axle and for some reason costs twice as much as the nearly identical puller on the other side (WTF?!).

A previous knucklehead ruined the threads then ground off the end of the axle to get the nut back on (but still cross-threaded the nut!) so the whole axle needs to be replaced. I don't have a cutoff wheel big enough to cut the end off and my hacksaw won't cut this hardened stuff. I could maybe try cutting the spacers off with my Dremel but I think that will be slow and expensive.

Maybe try freezing then heating to break the rust loose? Soaking in something?

Bite the bullet and buy a new puller?



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peteBLUEttr


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If it was me, to save faff, i would get hold of a bigger cutting disc and slice it in half. Might take a while unsiezing those spacers..

I mean you could try putting the spacers in a vice, dousing in penetration spray, applying some heat, and whacking the axle back through em, its up to you..



-- Edited by peteBLUEttr on Wednesday 10th of February 2016 05:00:37 PM

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Pete. South Somerset, England.
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As Pete says vice, heat and big hammer as you are going to scrap the axle anyways.

If you smash off the inner bearing races (or at least one of them - taking care to protect your eyes) you could hacksaw through fairly easily - and give yourself a better chance of stripping off the inner and out wheel spacers and snail cam. Otherwise borrow a grinderette or similar.

It is worth trying to save the spacers as they are expensive to replace.

Just checked with my Yamaha part supplier and , yes, the two snail cams are very different prices!!!!

If you get stuck, I have some axles and snail cams here.

Let us know how you get on.

I would always advise any new owner to get their TTR up on a stand and check they can get the axles out and, having done so, clean and re-grease them before putting them back in wink

Brian



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Sprok


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Thanks! I think I just needed some encouragement after being frustrated getting that axle out in the first place. Eventually the hacksaw got a good bite and cut through it. Admittedly the blade is probably well past it's usable life... But anyway, one more part I don't have to buy!

Looking at them, I don't see any reason why you couldn't run the cheaper right-side snail cam on the left side. You won't be able to see the numbers but as long as you're paying attention it wouldn't matter.

Yep, this is a new project. I've had the bike for a while (1999 US model) but it has just been sitting in my garage waiting for me to refurb it. It's a shame how people abuse these poor machines when a little simple maintenance and knowledge would keep it healthy. I'm more surprised that judging by the work receipts, a lot of the poor workmanship was apparently done at a Yamaha dealer! You would think they would know better.

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