Matchless

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Matchless

Postby Goss » Sat Nov 10, 2018 12:34 pm

When they changed the cylinder head on the G 12 in 1960 did they change the barrels to accommodate the new head


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Re: Matchless

Postby ajscomboman » Sat Nov 10, 2018 12:43 pm

Yep everything changed, pistons, barrels and heads and none of it is easily interchangeable.

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Re: Matchless

Postby Goss » Sat Nov 10, 2018 3:30 pm

[quote="ajscomboman"]Yep everything changed, pistons, barrels and heads and none of it is easily interchangeable.[/quote


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Re: Matchless

Postby Goss » Sat Nov 10, 2018 3:38 pm

I have just built the engine and put it in the frame it's about 1/8 too high in the frame so I think that the barrels are the wrong ones
The bike was a bit of a mixamatch


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Re: Matchless

Postby dave16mct » Sat Nov 10, 2018 3:51 pm

Why do you think it's 1/8" too high? Have you got the cranked headstay? The barrells are the same length. Only the top spigot diameter changed.
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Re: Matchless

Postby Goss » Sat Nov 10, 2018 4:48 pm

Hi Dave
The exhaust bracket that fits to the frame was to high I thought that it was the exhaust bracket seeing it was a pattern part so filed it ti fit than when I put the carb on it does not line up with the hole
In the tin ware the engine steady fit alright


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Re: Matchless

Postby ajscomboman » Sat Nov 10, 2018 5:53 pm

Pictures would help a lot.

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Re: Matchless

Postby Goss » Sat Nov 10, 2018 6:16 pm

IMG_0806.jpg
IMG_0810.jpg
IMG_0759.jpg
Image


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Re: Matchless

Postby robcurrie » Sat Nov 10, 2018 6:58 pm

I can't help with the height and I don't see a nice photo of the head steady, but the exhaust pipe looks to be a bit of a loose fit in the head.
Does the spigot at the top of the barrel fit nicely into the head?

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Re: Matchless

Postby ajscomboman » Sat Nov 10, 2018 7:01 pm

You have the wrong cover panel between the oil tank and tool box. The top of the intake hole on the correct one virtually eclipses the screw indent whereas your's is a lot lower. As for the pipes, I bet they are from Armours and they're all like that.

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