mallory dual point distributor 2758901 vacuum advance issues please help

[strokerbobber]

is anyone on here running this distributor on there l-series engine please let me know i am having issues getting this one to run correctly,have changed the cap rotor button,both points and still same effect acts like it is runneing on two cylinders.

[datzenmike]

Well check for spark. Pull each wire off, stick an old plug in the end, lay on a grounded surface and crank it over. Got Spark???

[strokerbobber]

got fire to each plug but is running rough..like it stalls out till you hit bout 5k rpms

[datzenmike]

Then maybe not the distributor.

Do you have a tach or is this a guess? Is this a stock Hitachi carb?

Perhaps the primary jet is clogged? Struggles until the secondary can be pulled in.

[banzai510(hainz)]

hopefully you main condensor is runnning the main side and the 2nd condensor is for the 2nd set of points.

 

Personally I would run the points with the bigger condensor. this will be your main ignition. Disconnect the 2nd set of points by just pulling the wire. then time the motor and adjust the mixture. then run it see what it does.

 

dual point dizzys is more for emissions

 

 

try pluggin the vac adv to the carb also it could run better

[EricJB]

Probably not the Mallory. I have a Mallory DP that I just recently converted to electronic. Never had a problem with dual points though. Sounds like carb to me as well. 

 

 

[strokerbobber]

eric what conversion kit did you buy and mine is the vacuum advance if that makes a difference i unplugged one set of points and it runs fine..also have a weber car as well two different ones actually and ran the same with either one..thanks for all the help tho regardless of this mishap..id rather have a matchbox set up to run than points..

[EricJB]

I went with a Pertronix ignitor 2. I got it from Summit.

[banzai510(hainz)]

Eric they make a Pertronix kit for the mallory pitured above?

[EricJB]

Yep. I think the # is ML141. Not positive . I don't keep receipts around for others to see, if you know what I mean.

 

I should add that I don't recommend this dist with a single carb set up that could use a vac can. I tried it with a DGV and it ran way better with stock dist. I'm not going to get a vac signal out of my truck, so I went with the non vac can  Mallory.