vacuum advance ,help I.D replacement please
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More Turbo
Joined: Dec 2013
Posts: 647
Likes: 10
From: SOUTHBURY CT
vacuum advance ,help I.D replacement please
the engine is a 335 series for sure, proly a 351m 8 bolts on the valve covers,
I want to replace the vacuum advance on the distributor. I am looking for help finding the one i need.
my distributor is a ford motorcraft best i can tell # is D3zf 12127 ???
hard to tell 3n3 maybe , single points single port on the vac advance.
any idea`s of the on i need?
mine is real hard to move and the arm is off the plate in the distributor.
should it get vacuum from the carb or manifold? mine is hooked to the carb.
thank`s
I want to replace the vacuum advance on the distributor. I am looking for help finding the one i need.
my distributor is a ford motorcraft best i can tell # is D3zf 12127 ???
hard to tell 3n3 maybe , single points single port on the vac advance.
any idea`s of the on i need?
mine is real hard to move and the arm is off the plate in the distributor.
should it get vacuum from the carb or manifold? mine is hooked to the carb.
thank`s
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
In was going to chastise you, assuming you know little about vacuum advance, but then I saw your 101 and realized I was dead wrong. However, I'm lost as to how the ignition system you installed adjusts for vacuum. Does it have a MAP sensor?
Laughing Gas
Joined: Dec 2012
Posts: 801
Likes: 7
From: Toledo, Ohio
. Yeah, I had same question...
. The vacuum advance mechanism may just need a good oiling to free it up... oil it again each 5 years or so... also, is the mechanical (centrifugal RPM) advance also still in operation? Does the electronic unit need it?
. The vacuum advance mechanism may just need a good oiling to free it up... oil it again each 5 years or so... also, is the mechanical (centrifugal RPM) advance also still in operation? Does the electronic unit need it?
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
If you have a mechanical distributor with vac advance and the can is trash like as not the distributor itself is worn out too. Bushings wallered out, breaker plate and weight slots worn, gummed up and corroded. Will cause missing at idle and loss of power at all RPM.
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