Quote:
Originally Posted by bdhurley
Unfortunately, the hoses are configured correctly as per the attached diagram from the service manual.
I will explore placing a metal orifice disk with a smaller orifice inside the manifold nipple which may restrict the vacuum flow whilst still function to extract gasses from the crankcase.
|
It might be right for a 1972 car but what if the car is in fact a 1971 car that was registered late or perhaps someone has changed the engine at some point in time for an older chronologically but younger in miles unit?
Also as others have mentioned the vacuum advance was changed about the same time, perhaps to coincide with changes to the PCV system that may have some influence.
Thinking back i remember my last 144 was 1972/L registration and had the later arrangement as you have uploaded. I'd previously had a 1971/K 145 with the breathers the opposite way round. When i got the L reg, i at first assumed someone had put the breathers on incorrectly and swapped them back to how i thought they should be and it wouldn't tickover properly - very similar symptoms to yours?
It seems you've tried most everything else, maybe the time now is to try the silly, stupid stuff and keep it that way?