Strange Distributor

[bosworth]

I'm trying to bring my early 49 p15 back to life.  The engine number is D 34-42 151 which according to the charts is a 50 Dodge engine.  The very strange thing is the distributor which has no vacuum advance " IAY 4330-1 "  the vacuum line from the intake manifold is crimped off.  I wonder if this distributor will be sufficient,  or should I be shopping for something with a vacuum advance.  I found a couple on e-bay an IGS 4207 A1  and an  IAT-4101    neither of these are listed in my manual.

Any thoughts on this strange situation would be greatly appreciated.

Thanks

Bill

 

[Jerry Roberts]

One thing to be careful of is there are two common distributor shaft lengths . The 25 inch long block uses a distributor with a shaft that is about 1/4 inch longer than the 23 inch block . Is the 1950 Dodge motor a 25 inch block ? I don't have access to my Motors Manuals right now but sometimes you can find the the distributor models listed for what car they were installed in . In the past I have not been able to find all numbers listed . And yes , you should have a vacuum advance . Some constant speed motors didn't need a vacuum advance . 

[greg g]

The dist vacuum advance should be fed with ported vacuum from the carburetor not the intake.

[Dodgeb4ya]

IAY series distributors W/ no vacuum advance are for Dodge 1 ton and Power Wagons. The 4330-1 is such a high # I could not positively ID it as my Autolite books only go up to 1957.

[bosworth]

Jerry;  the block measures 23",   Greg;  your right, the crimped off vacuum line is from the lower half of the carburetor.  The engine color is blue,  I would imagine that it has been repainted over the years,  but the paint under the paint (?) is also blue.  I don't know if that helps identify the engine.  I should say that the only times I ran the car was on our rural road. It seemed to run pretty well,  but  broke up at higher speeds and or acceleration.  I figured that a carb rebuild, tune up was in order.  I have been doing body restoration,  and all of the sheet metal parts from the firewall forward are off.  So this seems to be a good time to get at the engine.  Any ideas on the IGS-4207 A-1 or IAT- 4101 distributors  or should I keep looking?

Thanks..

Bill

[Alshere59]

I am going from memory but I seem to recall reading that the 4101 is the only model that you can still buy vacuum advances for. Ours are pretty old and the diaphram leaks on them fairly often. I would at least see what replacement units are availble for both before i made a purchase. Normally no vacuum advance was an industrial engine that ran at a set rpm at least on the newer flathead engines..

[_shel_ny]

IGS-4207A-1 was used on the D-24,  possibly others. Would be suitable for a 23" block.

 

IAT-4011 (not the other # you listed) was used 49-52 in the Dodges. Same 23" block

 

As pointed out in past threads-   have to match the points - rotors- caps-vacuum advances to the particular dizzy

when getting replacement parts, but the distributor itself should drop right in.

 

 

Terrell will repair a vacuum advance.

Edited March 7, 2013 by shel_bizzy_48

[Alshere59]

Well I looked through my favorites and found the thread about the IAT 4101 dizzy. Here is a link. Also yes it will fit in your engine at least it is in mine.

 

http://olskoolrodz.com/forum/showthread.php?t=47895

[bosworth]

Well the IAT 4101 sounded like the best bet,  so I ordered one that I found on e-bay.  I hope it is in decent shape.  I'll clean it up when I get it and put it in.  I Just finished painting the engine tonight, so should be able to put the parts back on the engine and replace the fenders. Hope it starts again after having been pulled apart.   Thank you all for the great info.

Bill