differences from Atlas, P11, and early Commando timing cover

Re: differences from Atlas, P11, and early Commando timing c

I believe that the oil gallery that we are discussing in the commando's go's to the return line [crankcase side] as previously stated my February 69 had a threaded plug in this gallery and am fairly sure that the cover in the top picture was the one that came fitted to the fastback, it has a gallery drilled at approx. 12 o'clock that appears to allow the pressure relief valve to vent into the timing chest, possibly this was the earlier method?.

I have previously owned 2 Atlas and a P11 Ranger and currently own a 650SS and these all had the tacho drive mounted vertical though these were all later models 66-69
though I have seen photo's of a Manxman with the drive on an angle, so possibly this may have been used in the early 60's?
Al

Re: differences from Atlas, P11, and early Commando timing c

If you look closely you can see the gallery in the top photo, in the bottom photo there is a mould mark in a similar location which is undrilled as previously stated possible model change.
Al

Re: differences from Atlas, P11, and early Commando timing c

Yes.
The top timing cover could be a 650 Mercury or a very early Fastback as you well said.
I have seen a lot af Atlas with diagonal tacho drive fixing.
Sorry, i dont know more of this.
Ciao.
Piero





Pictures from e bay, the seller sells like Atlas!!!!

Re: differences from Atlas, P11, and early Commando timing c

Possm: There are a lot if things to look at in your two photos, and knowing exactly which one you refer to as the "gallery" is not clear to me. I am confused with one reference to "3 PM" and then later another reference to 12 O'clock. If you could figure out a way to add arrows to your photos it would help immensely.

Thanks

Curt

Re: differences from Atlas, P11, and early Commando timing c

Vee Haff Vays of makeing you Tock . ! . :lol:



The CRANKSHAFT AXIS ( OIL SEAL ) is by the third blokes left foot .

The Chap on the Right has his sandwich sitting on Three O'Clock .

BOTH the hands are at TWELVE O'Clock . Which means Its Lunch Time .





Some Silly Sausage is advertiseing ' atlas /commando timing cover gaskets .

Re: differences from Atlas, P11, and early Commando timing c

AT the Bottom Go To the TOP , theres ONE to the Right before TWO .

At the Top go to the Bottom , theres Two to the Right , Before Two .

:lol: :lol: :shock: 8) :twisted: Er , youll see theyre not quite the same . THAT is WHERE you have to WATCH for HOLES . The Oil Pressure Relief Valve Area .

The Gasket should MATCH the CRANKCASE . It Should ALSO match the Timing Cover . Now WE ALL know how to make gaskets , lunchpapers translucent - for a PATTERN .
to CHECK if the HOLES in the Timing Cover and the Crank Case ALIGN ! . :mrgreen: