Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: McCabe-Thiele (Ted) on March 15, 2021, 04:12:22 PM

Title: How do I hold this shaft to undo the end nut?
Post by: McCabe-Thiele (Ted) on March 15, 2021, 04:12:22 PM: I probably should have done it before I removed the clutch etc what's the best way to hold the shaft to loosen this nut? Is it by popping in a pair of gudgeon pins and putting a shaft through to hold the con rods fast?

I need to remove the circlip to the bearing then somehow presumably tap out the bearing any tips?

..

(https://live.staticflickr.com/65535/51039254028_e3108baed3_k.jpg) (https://flic.kr/p/2kLaw3q)this nut (https://flic.kr/p/2kLaw3q) by Macabe Thiele (https://www.flickr.com/photos/187487200@N03/), on Flickr
Title: Re: How do I hold this shaft to undo the end nut?
Post by: Bryanj on March 15, 2021, 04:30:22 PM: Put the clutch basket back on an jam a copper waser between the teeth(a penny will do)
Title: Re: How do I hold this shaft to undo the end nut?
Post by: McCabe-Thiele (Ted) on March 15, 2021, 04:38:41 PM: Quote from: Bryanj on March 15, 2021, 04:30:22 PM
Put the clutch basket back on an jam a copper waser between the teeth(a penny will do)

Is there not a risk of chipping the teeth doing this?
Title: Re: How do I hold this shaft to undo the end nut?
Post by: Johnwebley on March 15, 2021, 04:52:40 PM: The copper washer should be soft enough,

The RD Yamaha forum recommends a wedge of cloth to jam the gears

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Title: Re: How do I hold this shaft to undo the end nut?
Post by: Bryanj on March 15, 2021, 04:54:50 PM: Not chipped one in 50 yrs but if the quenn knew how many pennies and old halfpennies i had mangled oooer
Title: Re: How do I hold this shaft to undo the end nut?
Post by: McCabe-Thiele (Ted) on March 15, 2021, 05:17:31 PM: Quote from: Bryanj on March 15, 2021, 04:54:50 PM
Not chipped one in 50 yrs but if the quenn knew how many pennies and old halfpennies i had mangled oooer

Defacing a Coin of The Realm .......they can probably still hang you for that!
Title: Re: How do I hold this shaft to undo the end nut?
Post by: robvangulik on March 15, 2021, 05:24:47 PM: A washer or coin will work fine, I used a piece of cloth successfully many times ;)
Title: Re: How do I hold this shaft to undo the end nut?
Post by: Laverda Dave on March 15, 2021, 08:03:26 PM: Making progress there Ted with the stripdown 👍
Title: Re: How do I hold this shaft to undo the end nut?
Post by: kevski on March 15, 2021, 08:17:32 PM: Copper coins are now made of steel coated in copper, test with magnet first.
Title: Re: How do I hold this shaft to undo the end nut?
Post by: Skoti on March 15, 2021, 08:46:53 PM: Would an impact wrench not loosen it?
Title: Re: How do I hold this shaft to undo the end nut?
Post by: McCabe-Thiele (Ted) on March 16, 2021, 08:44:05 AM: Quote from: Skoti on March 15, 2021, 08:46:53 PM
Would an impact wrench not loosen it?

This is my plan.
Title: Re: How do I hold this shaft to undo the end nut?
Post by: Johnwebley on March 16, 2021, 09:24:12 AM: Back in the day,
An impact wrench was a chisel and lump hammer.

Oh

And the blue boxed Wessel with Phillips bits that chewed the heads

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Title: Re: How do I hold this shaft to undo the end nut?
Post by: H2Eric on March 16, 2021, 03:15:46 PM: Quote from: Johnwebley on March 16, 2021, 09:24:12 AM

And the blue boxed Wessel with Phillips bits that chewed the heads

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That's because the screw heads were JIS (Japanese Industry Standard) and not Philips
Title: Re: How do I hold this shaft to undo the end nut?
Post by: McCabe-Thiele (Ted) on March 17, 2021, 03:50:08 PM: Okay nut now undone with cordless impact tool - prevented shaft rotation with long JIS shaft through gudgeon pin with plastic pipe sleeve to prevent marking the casing, cam chain was free from casing sides. Gear, spacer Circlip, bearing and shaft etc removed as per the video link below courtesy of "smoothoperator".

.https://www.youtube.com/watch?v=P1pTk2951lU
Title: Re: How do I hold this shaft to undo the end nut?
Post by: philward on March 17, 2021, 07:08:52 PM: Quote from: H2Eric on March 16, 2021, 03:15:46 PM
Quote from: Johnwebley on March 16, 2021, 09:24:12 AM

And the blue boxed Wessel with Phillips bits that chewed the heads

Sent from my SM-A750FN using Tapatalk

That's because the screw heads were JIS (Japanese Industry Standard) and not Philips

Which back when I was starting biking, I (and many others) didn't know! The brit boys said Jap crap screws was made of 'monkey metal' not knowing about JIS
Title: Re: How do I hold this shaft to undo the end nut?
Post by: mike the bike on March 17, 2021, 08:23:58 PM: Or use a piece of hardwood. It won't damage anything. I've done it that way for years
Title: Re: How do I hold this shaft to undo the end nut?
Post by: McCabe-Thiele (Ted) on March 17, 2021, 09:43:16 PM: Quote from: mike the bike on March 17, 2021, 08:23:58 PM
Or use a piece of hardwood. It won't damage anything. I've done it that way for years
I was bereft of hardwood but had some offcut 15mm Speedfit pipe to hand.