Bugger, it's a high speed transfer box so the gear I'm after has 31 teeth instead of the standard 27 teeth.
Not sure how easy that will be to locate......
Colin
Managed to find time to separate the gearbox & transfer box today.
DSCN1360 by Colin Radley, on Flickr
The mainshaft gear for the transfer box was badly pitted in places.
DSCN1363 by Colin Radley, on Flickr
The gear it mates with was OK so I guess it was not hardened properly, something else to add to the shopping list.
Colin
Last edited by gromit; 24th July 2017 at 08:36 PM.
'56 Series 1 with homemade welder
'65 Series IIa Dormobile
'70 SIIa GS
'76 SIII 88" (Isuzu C240)
'81 SIII FFR
'95 Defender Tanami
Motorcycles :-
Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
Bugger, it's a high speed transfer box so the gear I'm after has 31 teeth instead of the standard 27 teeth.
Not sure how easy that will be to locate......
Colin
'56 Series 1 with homemade welder
'65 Series IIa Dormobile
'70 SIIa GS
'76 SIII 88" (Isuzu C240)
'81 SIII FFR
'95 Defender Tanami
Motorcycles :-
Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
 YarnMaster
					
					
						YarnMaster
					
					
                                        
					
					
						Try Ashcroft in the UK, Colin,
Cheers Charlie
I was told that Ashcroft wouldn't supply parts but only the full gearset. Emailed them at about 4.35pm yesterday and got a reply at 4.40pm, replacement gear 52GBP plus freight. Slightly better service than the company I've ordered a gearbox overhaul kit from, they don't answer emails or the phone at the moment. Maybe they are all off watching the Olympics ? Colin
Last edited by gromit; 1st August 2012 at 07:00 AM. Reason: typo
'56 Series 1 with homemade welder
'65 Series IIa Dormobile
'70 SIIa GS
'76 SIII 88" (Isuzu C240)
'81 SIII FFR
'95 Defender Tanami
Motorcycles :-
Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
Hi Colin
Just going through this thread again and noticed your image (above) this is a great view to explain the reinforcing over the reverse idler shaft in the SIII gearboxes.
The image in the forground/right of the picture is the early housing and the box in the background/left of picture is the later housing with the reinforcement.
Thanks!
Diana
You won't find me on: faceplant; Scipe; Infragam; LumpedIn; ShapCnat or Twitting. I'm just not that interesting.
Diana, The one in the background is the one I'm working on with the high speed transfer box (no gearbox number). The one in the foreground is a spare box that might need a new reverse gear, from the PO's description it has a few teeth missing. He thought it might be from a 2A. I've now found a mainshaft gear in Australia for the high speed transfer box so now looking for the next problem..... Colin
'56 Series 1 with homemade welder
'65 Series IIa Dormobile
'70 SIIa GS
'76 SIII 88" (Isuzu C240)
'81 SIII FFR
'95 Defender Tanami
Motorcycles :-
Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
Arthur,
I'm not telling where I'm getting it from until I've got it !
The one fitted is a welded up job, not sure if this was from Ashcroft or MaxiDrive. I'll maybe know when I collect the Ashcroft one....
DSCN1369 by Colin Radley, on Flickr
Progress is slow as I don't seem to get much spare time at the moment. Next job is to make up a tool to tighten the replacement 'nut' that holds the 31tooth gear in place. The old one had been cold chiseled into place.
Colin
Last edited by gromit; 24th July 2017 at 08:38 PM.
'56 Series 1 with homemade welder
'65 Series IIa Dormobile
'70 SIIa GS
'76 SIII 88" (Isuzu C240)
'81 SIII FFR
'95 Defender Tanami
Motorcycles :-
Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
The Ashcroft gear is not a cut & shut job so is the one shown in the post above from MaxiDrive or did someone else make them as well ?
Anyway, hope to get some time in the shed tonight and may finish stripping the box.
Bearings so far seem OK, the PO purchased it as 'rebuilt' so once the synchro spring is replaced I might just build it back up again with new seals & gaskets.
Colin
'56 Series 1 with homemade welder
'65 Series IIa Dormobile
'70 SIIa GS
'76 SIII 88" (Isuzu C240)
'81 SIII FFR
'95 Defender Tanami
Motorcycles :-
Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
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