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68triton
68triton
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Help i just purchased what i thought was a goldie
#813278 06/20/20 2:41 pm
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Hi all any help and advice gratefully received
i have what i thought is a DBD34 gold star 1958, frame is correct, although began life as a scrambler, the engine number does nort relate to a goldstar, so i am trying to identify it, i have looked inside the tappet cover and can see the large threaded hole that may identify it as a goldie engine and i now need some rocer cover new gaskets, any ideas where to buy from, i live in the Nottingham NG16 area if any ones knows local places to buy and get information etc

many thanks

Shaun


Shaun
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Re: Help i just purchased what i thought was a goldie
Shaun1066 #813288 06/20/20 4:13 pm
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try exton motorcycles in bulwell .

Re: Help i just purchased what i thought was a goldie
Shaun1066 #813292 06/20/20 4:23 pm
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Shaun: I suppose it depends on what you consider to be a Goldie engine. A machine as it left the factory, an engine with GS specs that replaced the factory engine, an after market engine built to GS specs with newly made parts or maybe an engine built with B31 or B33 cases but with GS top end.

The large threaded hole in the cases is for a 5th long bolt but only the CB engine had that feature. All the rest had four short and four long bolts so no 5th large hole. There is a stamped in code on the front of the cases that identifies the specs that the cases were made to. That code will tell you if the engine was meant to have the large drive side bearing and bearing support that only a GS engine came with.

Gordo


The roadside repairs make for the best post ride stories.
Re: Help i just purchased what i thought was a goldie
rocketgoldie #813293 06/20/20 4:26 pm
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Thanks , rocket goldie, i will pop round to see them


Shaun
Re: Help i just purchased what i thought was a goldie
Gordo in Comox #813294 06/20/20 4:29 pm
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Gordo, thanks, where is this number,do you have a pic of one, i will try and look at this, still trying to understand what i have, the gearbox is a RR T2 though (well the casing is)

cheers


Shaun


Shaun
Re: Help i just purchased what i thought was a goldie
Shaun1066 #813296 06/20/20 4:42 pm
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Shaun: the number is stamped where the middle of the three front mountings bolts goes through the engine cases. You may need to take off the tin cover to see it if you have one installed. The number starts with 66- and is not to be confused with the numbers that show if the cases are a matching pair.

As well what letters and numbers are on the left side of the cases under the cylinder to tell you the model?

Gordo

Last edited by Gordo in Comox; 06/20/20 4:56 pm. Reason: Question

The roadside repairs make for the best post ride stories.
Re: Help i just purchased what i thought was a goldie
Shaun1066 #813297 06/20/20 5:00 pm
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i will take off the cover tomorrow, the number on the left side are nor correct, i believe they have been re stamped for some reason these have been on it since it was re registered in 98 DBD.34.GS. 5XX.


Shaun
Re: Help i just purchased what i thought was a goldie
Shaun1066 #813299 06/20/20 5:09 pm
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Hi Shaun the man who runs Exton used to be a BSA dealer and very good with Goldstars is name is Brian a nice juy the phone no is 0115 9272069..
Hope he can help you.
Val.

Re: Help i just purchased what i thought was a goldie
Shaun1066 #813300 06/20/20 5:10 pm
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Interesting that the 5th hole you have is for the CB engine and they started at 501. Maybe the top end is DBD which would really only be the more advanced Head. There should be numbers on the head to identify it but hard to see with the head installed. The CB would have an oval set of flywheels.

Gordo


The roadside repairs make for the best post ride stories.
Re: Help i just purchased what i thought was a goldie
Shaun1066 #813945 06/25/20 2:52 pm
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I purchased all my engine parts from Phill Pearson , best to phone him , If he hasnt got one he will know who has . http://www.bsagoldstar.co.uk/

Re: Help i just purchased what i thought was a goldie
Shaun1066 #814028 06/26/20 2:56 am
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The '5th hole' for the long hold-down bolt in the timing side case is not peculiar to the CB. I've seen it in DB engines, possibly later.


No generalisation is wholly true, not even this one.
Oliver Wendell Holmes
Re: Help i just purchased what i thought was a goldie
Shaun1066 #814050 06/26/20 10:00 am
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hi many thanks for the comments and help, im still on with it, just keep having to do work too!


Shaun


Shaun
Re: Help i just purchased what i thought was a goldie
Shaun1066 #814078 06/26/20 3:59 pm
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Kerry; Thanks for the 5th bolt info. I was quoting from the late John Gardner book 'BSA Gold Star Profile' where he listed the changes for the DB engines. However I appreciate that the factory blended some model changes and could be counted on to do almost anything. I only need to look at the ZB34GS cases I have with a small drive side bearing and the ZB33A cases I have with the large drive side bearing complete with the bolt in bearing support plate.

I have seen later engines with the 5th hole but they did not have the extra long bolt. Leftover cases maybe.

Gordo


The roadside repairs make for the best post ride stories.

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