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21
Technical Discussion Forum / Re: Piston for 1928 350 cc Model 8.
« Last post by Tom Snow on June 05, 2019, 11:28:45 AM »
Good day All,

To conclude this story I had two pistons made by JP in Australia it took them four to five week from the point where we agreed size and specification to when they were ready for dispatch. I had them ten days after that. I sent them a pattern but requested an oil ring in place of the third plain ring which they did. All other dimensions / weights were as original with the exception that the new parts were the next two over sizes up.

I would consider this is an easy route to piston replacement compared to finding a piston that is nearly right and then machining it till it fits and accepting any compromises that have to made to be able to use it.

Photo attached for your information.

Regards,

Tom.

22
Parts Wanted / Re: Sunbeam 500 1924
« Last post by singleminded on June 04, 2019, 08:06:18 PM »
https://www.vintagerimsaus.com/
I found this, It may be worth a look.
23
Parts Wanted / Re: Sunbeam 500 1924
« Last post by wessex_man on June 04, 2019, 07:29:56 PM »
You are welcome. Yes original rims would be very hard to find still you never know. I guess your model is a 3 1/2 h.p. Light solo (model 5).

The front brake arrangement shouldn't be that different to my 1923 3 1/2 h.p. I'll get some measurements the weekend if you want?

The carb fitted on my bike is an AMAC I dont understand what you are missing from yours?
24
Parts Wanted / Re: Sunbeam 500 1924
« Last post by hubii on June 04, 2019, 03:06:05 PM »
Hello Wessex_man,
now I am also in the club (and member of this forum) many thanks for your answer and also thanks to Klaudius, who help me for the first step into this forum... I see, it's very difficult or impossible to get a front wheel with a brake rim... when I get none, I try to get new rim...

I also need approximate measurements (maybe photos) from the brake system, conical neck for the carburettor would be very helpful... I try to build it to myself...

Greetinx /hubii
25
Technical Discussion Forum / Re: valve clearance
« Last post by claxby on June 02, 2019, 08:31:37 PM »
Thanks....
26
Technical Discussion Forum / Re: valve clearance
« Last post by phutton on June 02, 2019, 06:52:18 PM »
According to the 1928 manual, the cold clearances are: inlet 0.006", exhaust 0.008"
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Technical Discussion Forum / Re: valve clearance
« Last post by claxby on June 02, 2019, 06:25:52 PM »
1928...
28
Technical Discussion Forum / Re: valve clearance
« Last post by phutton on June 02, 2019, 03:30:19 PM »
What year?
29
Technical Discussion Forum / valve clearance
« Last post by claxby on June 02, 2019, 01:22:21 PM »
Model 6 , any info on valve clearance please.
30
Great to meet up with you after so many years...... David, you may be able to persuade Armors in Bournmouth to sell you some unplated ones of  their excellent silencer. Then paint them a matt black and age them accordingly to match the rest of your well used model 9
Vic
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