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Messages - chris mac

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1
British Bikes / Re: Excelsior 350cc OHV twin port 1929/30
« on: October 19, 2018, 05:09:16 PM »
The BTH magdyno is fairly rare and they made several subtle variations
What's really rare is the separate BTH cutout

2
British Bikes / Re: Massey & Massey Arran motorcycles
« on: April 13, 2018, 11:08:31 PM »
E.J.Massey left Massey Arran and went to F.J.Coopers where they produced the Massey. Early in 1924 he sold out to R.L.Jepson.  He was then briefly with H.R.D in late 1924 and early 1925

3
British Bikes / Re: 1932 W32-6 running problem
« on: July 09, 2017, 02:51:51 AM »
Just a quick suggestion, try removing the petrol cap and see if that helps

4
British Bikes / Re: 1929 Excelsior (UK)
« on: June 17, 2017, 11:43:53 PM »
The BTH mag dyno shown was in use by a number of manufacturers until the mid 30s. It puts out a snarling 4 amps for 24 watts, regulation is by a four position switch mounted in the headlamp. A BTH cut out was fitted in a separate housing usually mounted on the top of the tool box or on the frame. As pointed out in another post, pretty much any wiring diagram for a 3 brush dynamo will get you close, I doubt your Miller headlamp is original, but if it has the 4 position switch can be made to work. Original headlamp usually supplied with the BTH unit was the Powell and Hamner, I believe they merged in about 1926

5
British Bikes / Re: Starting a BS SS100 replica build - help!
« on: July 21, 2016, 08:56:56 PM »
Tony Pirrie did a pair of Enfield cush hub brakes for me,not cheap, but quality never is

6
British Bikes / Re: Vincent Comet Gearbox Issue
« on: July 18, 2016, 12:51:24 AM »
Nigel,  I'd also be checking the nuts holding the gearbox and mounting plates
Best,   Chris Mac

7
British Bikes / Re: Grigg motorbike.
« on: July 18, 2016, 12:41:38 AM »
Leon,  Here you go
Best,  Chris Mac

8
British Bikes / Re: Grigg motorbike.
« on: July 12, 2016, 02:27:08 AM »
From my understanding this is the only Grigg with a  B H engine, i'm aware of only one other V twin Grigg , here in California, which has  a 750 Blackburne
John Kidd is very knowledgeable on these bikes

9
British Bikes / Re: Watney m/c
« on: May 22, 2016, 07:20:04 PM »
The Blackburne engine looks to be early 20s with three stud detachable head. As everyone says join the VMCC, the specialist is Martin Shelley.  They can also help with the rims and tyres
If you are going for the original plate, I would recommend doing that before you take anything apart
Great project, good luck, keep us posted
Best,  Chris Mac

10
British Bikes / Re: Binks carb on a 1926 Rover Car?
« on: May 12, 2016, 01:52:03 AM »
John
Binks certainly made carbs for a variety of cars, this one is 30mm
Best
Chris Mac

11
British Bikes / Re: Burman 3 gear/clutch box needed.
« on: December 11, 2015, 07:53:16 PM »
On its way to you, let me know how Ito works out
Mery Christmas
Chris Mac

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British Bikes / Re: Burman 3 gear/clutch box needed.
« on: December 09, 2015, 12:48:38 AM »
Smartfella
Some pics of the Burman spacer

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British Bikes / Re: Burman 3 gear/clutch box needed.
« on: December 08, 2015, 04:57:26 AM »
Smartfella
I looked in my Burman stuff and I have Type G with clutch 2 stud underslung  smaller style ie 3.5 inch KS  quadrant
I also have a Type WCB also late 20s somewhat incomplete the main reason I mention it is that in the same box is an unusual top mount spacer Basically a 4x2x2 cast aluminium hollow box with a draw bolt on top definitely for a 2 stud Burman
Any interest, let me know and I will PM you some pics
Let me know
Best
Chris Mac

14
British Bikes / Re: Lycett Aero saddle elastics?
« on: October 16, 2015, 01:35:37 AM »
Leon
           Try anna.cingrosova@seznam.cz
Best
Chris Mac

15
Autojumble / Wanted 1920s throttle
« on: August 21, 2015, 01:02:56 AM »
I'm looking for a Binks or Amac straight pull throttle or a twist type rack and pinion throttle for mid 1920s sport bike with 7/8" bars.  Original or repro.
Lever throttles on a 500 dog ear in California traffic is a recipe for disaster :)
Thanks
Chris Mac

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