1967 Matchless G15 CS Maney 1007

1007

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Hello everyone,

Attached are some pictures of my recently completed 1967 Matchless G15 project.
It started out as a numbers matching G15 with 700 original miles.
The 750 Atlas was swapped for a brand new Steve Maney 1007.
The work was done by the Master Fred Brooks at the Old Motorcycle Shop in Calgary, Alberta, Canada.
I'm hoping someone can help with an assessment/valuation.
Questions and comments are appreciated

 
Nice looking bike. Tell us how it rides. Considering the open primary drive, I guess you won't take it to the dirt track?
Does the engine respond well to throttle actuation? Twin Amal Mk2's are supposed to not working well on a Norton twin.
What kind of crankshaft is fitted?

Drum brake on a bike with 1007 engine may not be the best combination.

- Knut
 
Thanks Knut,
The ride is smooth and wicked fast!
Hard to disagree on the brakes... maybe later?
Throttle response is instantaneous, no issue with the MK2's
All the engine internals have been redesigned to accommodate the oversize bore and stroke. This means it is not just an over- bored 850cc Commando engine.
Back in the day, Steve Maney offered a complete kit to convert a 750/850 Commando engine into a MANEY 1007cc engine.
This engine kit comprised of:

1. Crankcase
2. Crankshaft
3. Cylinder barrel
4. Pistons
5. Head gasket
6. Intermediate timing gear
 
Very nice. A pity Steve Maney doesn't do the kits anymore. Obtaining spare pistons and gaskets is advisable while Steve is still around.

Why is the intermediate timing gear different to the stock version?

- Knut
 
Very nice. A pity Steve Maney doesn't do the kits anymore. Obtaining spare pistons and gaskets is advisable while Steve is still around.

Why is the intermediate timing gear different to the stock version?

- Knut

Can I guess, since it has been a few days since you asked 1007?

Possibly an intermediate timing gear with two sprockets on it; one for a K2F magneto AAU drive chain and one for the cam drive chain.
 
Sorry guys... Schwany is correct on that one... here is a picture of the Maney 1007 kit
1967 Matchless G15 CS Maney 1007
 
I was told by Steve tha the timing gears are 1/16” narrower than std (timing gears out of a mk3 will work) as the bore centres are wider (which makes the crank wider) than a std motor.
 
I was told by Steve tha the timing gears are 1/16” narrower than std (timing gears out of a mk3 will work) as the bore centres are wider (which makes the crank wider) than a std motor.
That makes sense considering the intermediate in the fuzzy picture doesn't look as tall as the intermediate I have that supports ignition behind the barrels.

BTW, I didn't think I was right about the twin chain sprockets on the intermediate gear. It was just a shot in the dark guess and more of a bump to get a better answer. :)
 
I used MK3 timing gears for my 1007 build. No problems with fit.

Ken
 
That's a beautiful bike! A lot here are envious including me.
I will comment on something here that invokes a lot of conversation and that's the exhaust rose washers, AKA rattle rings.
The exhaust roses loosen up, not by turning, but through the hot and cold cycles of the head, and they eventually rattle.
Most people don't use them including me. Method is to tighten them through several cycles. How tight? RFT..
I check them often, like after every ride while they they are hot. Sometimes I get a nip.
Your mileage my differ......
 
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Wow, nice build. Basically an engine designed for road-race in a scrambler. Does it want to wheelie all on the throttle all the time? How hard is it to start with the stock kicker arm?
 
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