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Messages - Servodyne

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Twins / Re: New Chrome Rear Mudguard Fitting. A65 OIF
« on: 31 January, 2018, 18:40:40 »
I had a poor experience recently buying a new rear for my OIF Firebird. I bought it off ebay from a well known and usually respected vendor BBB. Advertised as triple chrome and UK made I thought was bound to be very good. Unfortunately the chrome had a slight pickled finish, the sides were rippled and some of the holes were slightly out of place, but the biggest fault which killed it for me was the standard of the rolled edge at the rear and the jagged burr at the front. For the sake of 10 minutes fettling at either end before chroming, the seller lost the sale and I returned it. I cost me 10 for the return postage and I had to fight for the original postage through Ebay.
I eventually bought a good used one for 50 and had it re-chromed.

Twins / Re: BSA A10 Spitfire engine in Rickman MK3 frame
« on: 26 January, 2018, 21:46:11 »
Thanks for posting the latest. It's one I've not seen before and it seems that I've gone for the wrong colour for my tank.  :-\

Twins / Re: BSA A10 Spitfire engine in Rickman MK3 frame
« on: 26 January, 2018, 19:55:27 »
Oops wrong attachment

Twins / Re: BSA A10 Spitfire engine in Rickman MK3 frame
« on: 26 January, 2018, 19:53:57 »
There were subtle differences between West and East coasts just to confuse the issue. The attached brochure is identical to the 1963 east coast Spitfire but now includes the words Gold Star in the title. 

Twins / Re: BSA A10 Spitfire engine in Rickman MK3 frame
« on: 26 January, 2018, 17:41:13 »
Gorgeous Rickman Spitfire, there can't be many about.

A65 spitfires came as mk2, mk3 and mk4s, so I suppose the A10 version was classed as the mk1, but even so, changed quite a lot from the 57 original with Gold Star running gear, to using A10 running gear from 58 through 60 then back to the Gold star 61 to 63 where it was known as the Rocket Gold Star Spitfire Scrambler. Interestingly only the 57 had low run pipes and dual seat.

Twins / Re: Bike Height ?
« on: 24 January, 2018, 22:46:57 »
I'm not sure that the later centre stands are shorter than the 1971 models, as the parts catalogues for both gives the same part number. However, the OIF singles are definitely 3/4" shorter. The 1971 stand is 10" from the centre of the pivot hole to the edge of the stand, compared with 9 1/4" for a B25SS. Other than that, they are visually identical and a straight forward replacement. I've got one fitted to my 1971 Firebird and it's made life a hell of a lot easier getting it onto the main stand, leaving the rear wheel about 1" off the deck and giving enough clearance to remove either wheel. 
The other thing to look out for, is how much the stand goes 'over centre' when putting the bike on the stand. Some stands go so much over centre, that both wheels end up touching the ground and these are the ones that are most difficult moving the bike on and off the stand. The cause of this could be worn holes in the frame or more likely poor control of frame and/or centre stand dimensions from the factory. 
This situation is easily remedied by building up the stops on the stand with a small run of weld in order to reduce the angle that the stand goes over centre. Around 20 deg from vertical should be ample. I've done the same trick on my 1957 A10 Spitfire, so both have less chance of giving me a hernia. 

Twins / Re: A65 OIF remote oil filter.
« on: 18 January, 2018, 16:07:43 »
He's my take on the remote oil filter for the OIF A65. The filter block is a piece of aluminium I picked up from ebay hand crafted into the shape shown with a steel threaded union from a Pan European to take the HiFlo HF303 filter.
It's simply attached to the rear mudguard frame bracket bolt with an additional 1/4UNF threaded hole in the rear engine plate. The existing return line hose is cut and two banjo fittings used to connect to the filter block. The hardest part was finding a M20 x1.5 tap to tap the hole for the threaded union.

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