Pete in PA

My official 1936 D2 sedan resurrection thread

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It seems the type 587 is a post war replacement for the 425 and the 428 used on the D2 and other models.

 

I have a 5409 to put on the Dodge; the original was a 5471. The only difference is that the base has the top mounting screw holes in different positions. The 5471 is as above; it has a screw at the middle of the boss on which the number is stamped. The 5409 is the same except there is a screw at each end of that boss and not in the middle, so the top is slightly rotated when fitted.

 

That top you show is a generic, with two possible inlet directions and three possible outlets. The original would have one in and one outlet, as on the one I posted. I don't know what direction they would point, though.

 

If that last photo is on the car, it doesn't appear to be a series B pump. The shape underneath is a different series, without the removable base (which originally had 855228 cast in it).

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The last photo is of the pump currently on the car and I figured it is the pump that came from the AC box.  Who knows?  Like I said I think the collection of pumps that came with the vehicle could tell a story.   
I *am* kind of surprised that the "original* pump is a hodgepodge of parts old and new.  I wonder where the original top part went?  As I've said before a lot can happen in 80 years.

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Pete an OEM will probability only have one in and out let .  The after market  units have multiples to adapt for various models . I have this extra 1935 date coded unit .  If it helps you , I will sell .

1270390349_FP2(800x450).jpg.77d94e7ac8c67246b3027ab1fc061917.jpg2021570706_FP3(450x800).jpg.873cae00481d0cae46d1c311a2180a90.jpg

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The 1521789 is a type 419. It takes the same arm as the type 425 and 428, so it would work on your D2. Note also the base is the same as the 5471, except for the arm - it has a screw above the middle of the stamped-number boss. I don't know how 855219 (the top) compares to yours; it may just be the one way valves. As you can see, Tom's pump has a domed outlet valve cover. Some had that dome cast into the top.

 

Well how about that. If you are feeling flush, here is one on ebay. This is a post war replacement part.

https://www.ebay.com/itm/Made-In-The-USA-AC-Fuel-Pump-Type-428-Chrysler-DeSoto-Dodge-Plymouth-NOS-New/183951951737?epid=1723824934&hash=item2ad4640779:g:GiAAAOSwkDhdel2x&vxp=mtr

Edited by Spinneyhill (see edit history)

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I never would have guessed that there would be so many different fuel pump numbers/variations.  This 6 cylinder flathead was in use for decades, right?  I guess Mopar had to changes something to keep the engineers busy.

To further complicate the issue I made the mistake of looking at my 36-42 parts catalog.  It seems that two different fuel pumps were used during D2 production.  Engines up to #41265 used fuel pump 653530 while engines from #41266 up used pump 659488. (Note that my 1935 parts book shows that all DUs used pump 637415 (and that was a new number for 1935) so the 653530 pump used on early D2s was not a carryover from 1935.) (Further, I see that all D5s and early D8s also used the late D2/659488 pump.)  Well the engine in my car, a November 1935 build, is 41226 so it originally had the 653530 pump.

As for what that means as far as inlet/outlet configuration (or any other specs) well I have absolutely no idea. <scream>

 

I can't even guess at how the fuel line into the pump was originally routed since that pipe is loose and rattling around under the radiator while the pump-to-carb line is a home made copper tubing piece.

 

It's not even noon and I really need a beer.

 

 

Edited by Pete in PA (see edit history)

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So your car fits in the first part of the D2 run, so it would have had AC type 425, AC part number 1522237. AC don't give the engine number for the change. At least the type 428 works, though, if you can't find a 425 and not many would know the difference! Probably, from above, the stamped number will be the only thing to show the difference.

Edited by Spinneyhill (see edit history)

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Any pictures in your books that show the engine? Any of them show the fuel pump? Here is one of a 1941 engine from allpar.com. The fuel pump looks to have a top like 855219 rather than the one on the new 1522995 one for sale on ebay.

1941Engine.thumb.jpg.3c5c88da245a9be24dd74e9a0b886f27.jpg

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I'll have to look at my books for pictures but from experience I learned that mfgrs will use a photo for years if they can.  I wouldn't trust a 1936 publication to accurately depict the 1936 situation if an early pic was close enough.

To further complicate the fuel pump issue I should mention that starting with the D5 in 1937 Dodge buyers could opt for a fuel pump fitted with the vacuum booster pump for better wiper operation.  There's a whole 'nother set of part numbers for those pumps.  At least I don't have to deal with that issue.  Course it *would* mean better wiper operation.  Not that I intend to do any intentional rainy weather driving with my D2.

 

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