Having gained a new motor today, and having a few questions to ask
regarding same, I have posted some pictures for your perusal at:-
Anyone guess its British maker? (Name is cast on flywheel, picture
not shown yet.)
The carb (P17) is not original fitment.
It needs another conrod.
The bore (P20) has no major scars. Not checked the dimensions yet.
Pity the ID plate is missing. The retaining screws are still there.
The number "17" is stamped on the top of the cylinder (Pic 8), and
again on the crankcase flange.(Top of P18)
The questions are about :
The ignition system and timing (9 & 10), is that part of it? If so,
what is missing?
Picture 24 shows the base of the exhaust box with an outlet into
the water system: Would I be right in thinking that some of the
exhaust gases are expelled through the exit pipe of the cooling system
to "atmosphere", not a tank, thus acting as a pulsating coolant pump
causing a partial vacuum in the system and drawing the water through
the jacket? The route being entry through the oblong aperture seen on
P3, up to the top of the jacket, out through top orifice P11, down
passage to exit at bottom of box P24. The system would be self
draining when the engine stops if the coolant water level were below
the engine. i.e. in a boat.
The plug hole thread is a reasonable fit for a 1/2" BSP fitting,
possibly tapered, would that be a Hessleman plug fitment?
Thanks for your thoughts in advance.
13 years ago