Rover Carburation
Posted: Tue Feb 14, 2017 4:46 pm
Dear All
I found on my 1934 Rover 10, between the carburettor and the inlet manifold, a spacer ( insulating spacer) of 1/4" thickness which also carried a machined but damaged diameter reduction venturi, reducing the diameter from 1.25" to 23m ( 0.905") at that point. The reduction diameter is stamped 23 mm. According to the parts lists there should only be a thin gasket in this early model.
I also see on the parts list for 1939 and 1940 cars have a steel liner for centerpot. I wonder if this has been retrofitted to my car.
I plan to revert to original thru bore all at 1.25", but keep the spacer to help insulate , as modern fuels burn at higher temperature, and revert to CP4 needle?
Any one have seen this situation.
rgds
lance Davis
I found on my 1934 Rover 10, between the carburettor and the inlet manifold, a spacer ( insulating spacer) of 1/4" thickness which also carried a machined but damaged diameter reduction venturi, reducing the diameter from 1.25" to 23m ( 0.905") at that point. The reduction diameter is stamped 23 mm. According to the parts lists there should only be a thin gasket in this early model.
I also see on the parts list for 1939 and 1940 cars have a steel liner for centerpot. I wonder if this has been retrofitted to my car.
I plan to revert to original thru bore all at 1.25", but keep the spacer to help insulate , as modern fuels burn at higher temperature, and revert to CP4 needle?
Any one have seen this situation.
rgds
lance Davis