Author Topic: Grumph / Tri-Greeves  (Read 6790 times)

themoudie

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Re: Grumph / Tri-Greeves
« Reply #45 on: July 21, 2023, 03:45:38 PM »
Looks like good steady progress Ian.

All the best, Bill

Steve Lake

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Re: Grumph / Tri-Greeves
« Reply #46 on: July 22, 2023, 06:41:46 AM »
looking good there, makes my efforts with #10 look a bit tame. it looks from you previous pics that you'll end up with a spare triumph engine ?  any plans for that ?

Steve.

iansoady

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Re: Grumph / Tri-Greeves
« Reply #47 on: July 22, 2023, 08:54:27 AM »
I've managed to flog off most of the superfluous bits - some via ebay, some via an auction at Pugh's of Ledbury. I was surprised how well the latter went, clearing over £200 for what looked mostly junk.....

Also good news this morning - the revised V5C arrived with the new engine number and capacity so it's all legal.
Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250

themoudie

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Re: Grumph / Tri-Greeves
« Reply #48 on: July 22, 2023, 01:52:25 PM »
Also good news this morning - the revised V5C arrived with the new engine number and capacity so it's all legal.
Now that is good news Ian.  ;D

All the best, Bill

iansoady

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Re: Grumph / Tri-Greeves
« Reply #49 on: July 22, 2023, 02:58:53 PM »
Thanks Bill. Other people seem to have had immense difficulty. Getting the initial age related number was easy with the help of the Greeves Riders' Association dating letter. To get the engine change I included a receipt from the bloke I bought the bits off (sort of.....) stating engine number and capacity but not mentioning Triumph. Seems to have worked well.

Of course anybody with a computer and printer could make such a receiot. Just saying.......
Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250

iansoady

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Re: Grumph / Tri-Greeves
« Reply #50 on: July 23, 2023, 10:38:15 AM »
Time to check whether the gearbox sprocket lines up with the rear sprocket. This is with the 3/8 width gearbox and the 1/4 rear wheel so checking on the inside faces. It's looking pretty good - thanks to Phil Hyde who made the engine plates and spacers. I will be fitting a much smaller rear sprocket anyway as I'm not intending to compete at Red Marley.

I'll be buying one of these: https://simplybearings.co.uk/shop/p20229935/Branded-51-Tooth-10B-Simplex-Platewheel-for-5/8-inch-Pitch-Chain/product_info.html but am dithering between 51 and 53 teeth - I loike an odd number as it spreads the wear. 51 will give me 12.4 mph / 1,000 engine rpm; 53 will give 11.95 with the 19 tooth gearbox sprocket. Quite low geared but should give a top speed north of 50 which will be fine.

I'll have the sprocket machined by Nametab here in Redditch who give an excellent and good value service.







Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250

themoudie

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Re: Grumph / Tri-Greeves
« Reply #51 on: July 26, 2023, 09:38:38 AM »
Aye Ian,

I know you have a problem with Facebook, but please try this link. It is not the SZR660 but the Grumph that also features that might appeal!  ;) There are multiple images. ;D

Grumph_and_SZR660_run_Facebook_link

Good health, Bill

iansoady

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Re: Grumph / Tri-Greeves
« Reply #52 on: July 26, 2023, 12:53:18 PM »
Ah yes, the irrepressible (some may have other descriptions!) Paul Miles. He did a writeup of this bike in Real Classic magazine. I believe he wants to sell it for upwards of £6,000. If only....

I don't have a problem as such with FB just hate it and its whole approach. But I do have a presence albeit with minimal and totally false data.

Moving on with my build, I think I've eventually got the clutch right although won't really know till the work is much progressed. It will turn the engine over on the kickstart without slipping though. And I've also got the swinging arm with its various spacers in place although had to resort to a Spanish Windlass to pull everything in line. All those years in the scouts not altogether wasted.

Also fitted a Kenda 3.50x18 back tyre as the one the bike came with was a 4.00 and almost touching the swinging arm. Shame as it was a new MT34.

I think I'm going to do for a dual output coil fired by the contact breakers after some thought. This will have a wasted spark but will make timing etc easier and will also fit under the tank. I did mislead myself for ages thinking that it wouldn't work with two contact breakers but was put right by someone on the Britbike Triumph forum.
« Last Edit: July 26, 2023, 12:55:00 PM by iansoady »
Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250

themoudie

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Re: Grumph / Tri-Greeves
« Reply #53 on: July 26, 2023, 03:08:26 PM »
Aye Ian,

My apologies if I touched a raw nerve, with the subject matter of my last post. I dinnae ken any of the individuals in the post.

I shall enjoy reading and viewing how your Grumph progresses.

Good health, Bill

iansoady

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Re: Grumph / Tri-Greeves
« Reply #54 on: July 26, 2023, 03:14:37 PM »
No need for apologies Bill, no nerves left, raw or otherwise!
Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250

iansoady

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Re: Grumph / Tri-Greeves
« Reply #55 on: August 01, 2023, 11:36:30 AM »
It's beginning to look a lot like.... a motorcycle rather than a collection of bits. Oil tank brackets made, froth tower removed, swinging arm spindle made and fitted, forks fitted with help from her outside....

I've been fiddling with the exhausts trying to get a low level system to work but think I'm going to have to have a siamese system made. Any suggestions?

Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250

themoudie

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Re: Grumph / Tri-Greeves
« Reply #56 on: August 01, 2023, 10:06:48 PM »
Aye Ian,

This'll no be cheap!  ::)

But the man knows his stuff and you'll have to join the queue.

Raysons_exhausts_grandfather_was_Peter_Lee_Unity_Equipe

The website "Gallery" is testimony to the art of sand bending mild steel tube into sinuous shapes that fit beautifully!  ;D

Good health, Bill

iansoady

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Re: Grumph / Tri-Greeves
« Reply #57 on: August 02, 2023, 09:47:40 AM »
Yes, that was my worry. I'm definitely at the cheap and cheerful end of the spectrum!

I suppose another approach might be to get some pre-prepared bends and have it welded up. I do have a little arc welder but my skills are not quite up to it. And I just noticed this morning that my local expert welding place seems to have closed down!
Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250

themoudie

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Re: Grumph / Tri-Greeves
« Reply #58 on: August 02, 2023, 01:25:19 PM »
Aye Ian,

I just so happen ........!  ;)

Before I decided to modify my old gutted Goldie pipe, I too went down the fabrication route, this site might be helpful!  ;)

Link: Everyexhaustpart_website

Cheers, Bill

iansoady

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Re: Grumph / Tri-Greeves
« Reply #59 on: August 02, 2023, 02:02:22 PM »
You read my mind - as it happens they're just round the corner from me.......
Ian.
1964 Norton Electra
1969 BSA-Suzuki
1992 Yamaha SRV250