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by Mick D
Mon Jul 15, 2019 6:13 pm
Forum: Four stroke
Topic: clutch and mainshaft
Replies: 35
Views: 588

Re: clutch and mainshaft

Hi and Thanks Plenty of food for thought there. Simon: Did you fit Allen bolts or were they Allen screws, (threaded for the length of the fastener)? If sourced recently they would most likely have been 12.9, so very HT - shearing six heads is a little worrying. Alan: Thanks for your images, I think ...
by Mick D
Mon Jul 15, 2019 1:59 pm
Forum: Four stroke
Topic: clutch and mainshaft
Replies: 35
Views: 588

Re: clutch and mainshaft

The six small HARDENED bolts holding the clutch basket to the BIG sprocket are one of the most critical of all the fasteners on the bike --------- The 6 bolts need to be made of Bl**dy good stuff and tightened well. Hi These items on my FH look identical to those pictured by Alan earlier in this th...
by Mick D
Sun Jul 14, 2019 6:11 pm
Forum: Four stroke
Topic: clutch and mainshaft
Replies: 35
Views: 588

Re: clutch and mainshaft

Hi

I'm assuming your impact driver ratings are in pounds force inches, (divide by 12 to get pounds force feet). Personally I wouldn't use an impact driver to torque fasteners, but if you do I'd advise only letting it 'rattle' three or four times on each fastener.

Regards Mick
by Mick D
Sun Jul 14, 2019 2:32 pm
Forum: Four stroke
Topic: clutch and mainshaft
Replies: 35
Views: 588

Re: clutch and mainshaft

chris.shearwood wrote:Both of those torque values seem low to me


Hi Chris

They are commensurate with similar fastenings on my T160 minus a little for material development.

Regards Mick
by Mick D
Sun Jul 14, 2019 2:04 pm
Forum: Main Chat Forum
Topic: What,s it for?
Replies: 7
Views: 290

Re: What,s it for?

Hi

Looks like some form of 'oiler' to me - the socket is keyed to prevent rotation and is that a clear panel in the lid to establish the level?

Regards Mick
by Mick D
Sun Jul 14, 2019 1:41 pm
Forum: Four stroke
Topic: clutch and mainshaft
Replies: 35
Views: 588

Re: clutch and mainshaft

Hi It's interesting to hear reports of the six clutch to chain wheel bolts becoming loose, when I dismantled my FH I thought the bolts had been 'bodged' with the screwdriver slots cut by a PO and I decided to replace them with standard hex head bolts which would be more secure in use, (less prone to...
by Mick D
Fri Jul 12, 2019 7:17 am
Forum: Four stroke
Topic: clutch and mainshaft
Replies: 35
Views: 588

Re: clutch and mainshaft

Hi My method is not as elegant as Alan's but requires less fabrication and it works for torqueing the gearbox sprocket too. I have an old secondary chain which I pass around the gearbox sprocket and a length of bar which I pass through the rear wheel spindle location, with a couple of long 5/16"...
by Mick D
Wed Jul 10, 2019 3:53 pm
Forum: Main Chat Forum
Topic: SAFER RUST REMOVER
Replies: 7
Views: 315

Re: SAFER RUST REMOVER

Well our tanks don't have one so it has to come out of the petrol tap 'boss'. To get the last surplus drops out I'll try to use a syringe with a tube. Sorry if I've missed something, but why not drain the surplus via the filler orifice? you can even get a finger in to remove the last drops of exces...
by Mick D
Sat Jul 06, 2019 3:05 pm
Forum: Four stroke
Topic: GB44 Mainshaft Query
Replies: 1
Views: 157

GB44 Mainshaft Query

Hi I think I'm getting there with my 58 FH primary drive trial assembly however I've noticed a significant gap between the adaptor sleeve, (3766-52), and the gearbox sleeve gear assembly which exposes the main shaft to the elements. GB44 Mainshaft Gap.png I appreciate that this area is fairly well s...
by Mick D
Sat Jul 06, 2019 10:31 am
Forum: Four stroke
Topic: FH Shock Absorber Query
Replies: 2
Views: 122

Re: FH Shock Absorber Query

Thanks Pete I think I'll 'borrow' your idea for a locking ring, makes a lot of sense, cheers. I think I'm going to replace the 25T sprocket with the standard 24T one as it seems to be restricting the range of movement of the shock absorber to 50%. Unfortunately Draganfly, John Budgen and Colin Reed-...

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