Posted by DDD [209.253.157.5] on Friday, December 18, 2015 at 10:33:13 :
What signs of performance does a non working, or partially working, distributor vacumm advance demonstrate?
I ask because I am not sure mine working or not.
or perhaps one of you guys can point me to where else I should look.
rebuilding a 1941 dodge wc12.. just getting to a point where I can drive it to see how the brakes/clutch/steering etc work before I try and button up the front end.
In other words, working out the "kinks" and making adjustments while I got easy acccess to the engine bay.
drove it a bit last night to feel it out.
Heres the deal:
-Brand new rebuilt 218 engine
-Distributor, original with truck. condition really unknow accpt it LOOKS decent and clean inside.
-brand new points (gapped correct, I think)
-timing set properly (now)
vacuum advance module is on distro, and plumbed to the carb.
Carb is a brand new proffesional rebuild. vacuum port IS working. I can feel it "suck" when I raise the idle and put my finger over the port opening
heres what happens. truck startes easily and idles fine.
Driving it, under load, I get coughing and general bad engine running. let off gas, and return to idle and the engine idles fine.
I disconnected the vacuum line from the carb end and took for another run. she seemed to run better, but as it was getting dark, could go much further as I have no lights yet.
Isnt that weird? it working BETTER without the vaccum line attached? and the carb vaccuuum port OPEN to the world?
( i did noticve the truck idles better, without any stumbling, when the choke is partially out.. thats another thing I cant adjust "away")
Second.. I didnt replace the condensor, as it looked fairly new..
could this be a cuase of the poorly running engine as described?
My god.. having so many issues with this new truck.. they just keep coming... a brand new engine, new fuel pump, new fresh carb rebuilt, and new lines, new plug wires, points, etc.
Didnt replace cap.. humm.. arching happening due to a crack?
Didnt replace rotor (yet) as mine looked fine. possible place to point as an issue?
anyway, throwing out all I know, what I did and didnt do.. wondering what I missed and where yuo would look next to try and fix the issues. thanks.
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