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Jap 2s dating

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Jap 2s dating

Post by brandon2196 on Sat Aug 04 2012, 19:14

I have a model 2s jap engine and i can see the numbers on the side of the crankcase and it begins with M, but when i look at the dating there is two dates, so could anyone please tell me wether it will be 1944 or 1924 as i am not sure which one it is.
Thanks
Brandon

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Re: Jap 2s dating

Post by Foden on Sat Aug 04 2012, 19:33

It wont be 1924 because JAP didn't make industrial engines until the late 1930's. Wink

Pete.

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Re: Jap 2s dating

Post by kevjhnsn on Sat Aug 04 2012, 19:52

pete
i second that motion,
you are correct with that info as always mate.
also if your cleaning up for painting there will be year stamps on the tinwork
best one is inside of the exhurst mounted sheld all my jap 2a/s have it there "AJH 19?? IN A SMALL CIRCALL
AJH is the tank and cowling makers for jab villiers bsa ect ect
kev

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engine dates

Post by brandon2196 on Sat Aug 04 2012, 21:12

Yes thats true when i wire wheeled all the old paint off i seen a stamp saying TMC, not sure how that relates to the date though.

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Re: Jap 2s dating

Post by dazcaz on Sat Aug 11 2012, 19:50

I have just acquired a JAP 2a running a compressor. It's serial starts with 2AA is this 1945 or 1960?
Can't get it to run, but I'm working on it... Smile

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engine date

Post by brandon2196 on Sat Aug 11 2012, 20:33

Hi,
dazcaz the best thing to do is the thing that kev said to do, all you have to do is where your exhaust is there willl be a thin metal plate running around the back of the the engine and if you take off the exhaust this thing will come off then get a wire brush or something like that and take the dirt away from the inside and in a little circle it will say A.J.H and then the date of your engine.

Hope this helps

Brandon

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Re: Jap 2s dating

Post by pauldg on Sat Aug 11 2012, 20:43

dazcaz wrote:I have just acquired a JAP 2a running a compressor. It's serial starts with 2AA is this 1945 or 1960?

Yes, it is Laughing

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