Author Topic: Mainshaft bearing retaining snap-ring help  (Read 169 times)

Offline ADP91

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Mainshaft bearing retaining snap-ring help
« on: 02.07. 2020 23:26 »
Hello all,

I'm nearing the end of my gearbox rebuild and I am having trouble reinstalling the two snap-rings/circlips that retain the two mainshaft bearings.

Is there a trick to getting these back in? I've tried inserting one end and using pliers to try and 'pull' the other end around without any luck.

Any advice is appreciated!

A

Online RichardL

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Re: Mainshaft bearing retaining snap-ring help
« Reply #1 on: 02.07. 2020 23:36 »
I've only done this one time, but my distant recollection is working one end into the groove and then working it the rest of the way around by hand. I have a feeling I might be leaving something out, like screwdrivers as levers. Now that i've spewed off, someone who did it yesterday will be more help.

Richard L. 
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Offline Swarfcut

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Re: Mainshaft bearing retaining snap-ring help
« Reply #2 on: 03.07. 2020 07:36 »
     That's the way I did it, using a thin blade screwdriver, starting at the plain end and finishing at the cutout. Make sure the bearing is well seated and clear of the circlip groove and there are no burrs or gouges to prevent the circlip clicking neatly into place.  It is relatively easy once you get it started,  push the free end of the circlip towards the centre, easing it  over the edge of the casting and  working your way round with a combination of hand pressure on the loose end and a little help from the screwdriver. Aim for a spiral, rather than complete seating to start with and work it down towards the groove. Then a final smack all the way round with your favourite brass drift for good luck and it will click into place.

 Swarfy.

Offline ADP91

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Re: Mainshaft bearing retaining snap-ring help
« Reply #3 on: 03.07. 2020 20:45 »
Thanks for the tips! Will give them a try, wish me luck.

A

Online muskrat

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Re: Mainshaft bearing retaining snap-ring help
« Reply #4 on: 03.07. 2020 20:49 »
G'day A.
As above ^^ and I use a thin pick. First I use fine wet & dry to smooth off the outer edge of the clip going inwards so as not to burr the casting, also makes it a little easier.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline chaterlea25

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Re: Mainshaft bearing retaining snap-ring help
« Reply #5 on: 03.07. 2020 23:26 »
Hi A,
Some sprocket oil seals make it very difficult to get the circlip seated properly
The circlip must keep the seal tight to the bearing to prevent leaks
I have had to sand down the rubber facing the bearing on a few
Once in place work around the circlip with a pin punch to make sure it is fully into its groove

John
1961 Super Rocket
1963 RGS (ongoing)