View topic - 1915 Dodge carburetor part 2

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PostPosted: Wed May 08, 2019 11:02 pm 
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Tonight I thought I would fit the carb against the block. I noticed the round mouth that extends from the carb does NOT fit in the hole on the block: it sits flush. But that means the flange and screws are about 1/8 inch away from block. Is this correct? Or is my carb wrong model for engine?
I also found the throttle valve is missing a screw. Shouldn't be much of a problem. I believe it is a number 4, and the shaft looks home-made to me, as, perhaps, does the arm that connects to it outside the carb.
Thanking you in advance for opinions regarding this set-up. Mike Barnes, Vancouver


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File comment: linkage: home-made 1?
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File comment: carb against block 2
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PostPosted: Thu May 09, 2019 6:12 pm 
Mike, looks like your carb has issues. Can you post a picture of the whole thing?


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PostPosted: Fri May 10, 2019 1:29 pm 
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I have an extra carb if it comes to that.

If Doug isn't able to help message me and I'll see if we can get it sent to you.


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PostPosted: Fri May 10, 2019 10:17 pm 
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Thanks, all. Attached are two pics of the carb, plus one of the hole in the engine. As I said, carb mouth fits over this opening, rather than inserting into it. So a gasket is only effective in the very spot the mouth butts against the block.


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carb1.JPG
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PostPosted: Fri May 10, 2019 11:33 pm 
Mike, I am not sure what the copper ring is inside your block. Was it there before when the car ran? With it removed the carb will fit inside like it should. The gasket seals on surface where the flange is for the bolts not on the diameter that goes into the block. I hope you have the bolt that holds the carb together. They are a special thread I have not been able to find. Most people stuff a 1/4 - 20 in there, which is not correct. I have an extra one if you don't have it. And, do you have a vacuum tank or pressurized system?


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PostPosted: Sat May 11, 2019 10:40 am 
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Interesting about the brass ring inside block: it is so well installed it seems to me original. Is there a chance that the early 1915s had a smaller mouth carb? And that I have a later carb too big to fit? I don’t have the Stewart carb book: would appreciate if someone could check. Merci from Canada. Mike


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PostPosted: Sat May 11, 2019 1:31 pm 
Mike, I measured several carbs I have, both early and late. They all measure between 1.780 and 1.800 with a caliper. The block openings measure 1.81. The carb does not seal there, that's why the clearance. It seals on the carb gasket with two holes in it. Was this ring in there when the engine ran? The carb, like you have, was only used a short time with the throttle plate where it is. Must be an early '15 with air pump?


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PostPosted: Sat May 11, 2019 9:15 pm 
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Thank you. I am going downstairs to try to pry out that ring. Can somebody explain the air tube at the top? On mine it has been bolted shut.


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PostPosted: Sat May 11, 2019 9:51 pm 
That is where someone drilled a hole for a vacuum tank. That is why I asked if you have vacuum tank or air pump and if this car has run in your possession. This style carb top did not have that hoe for a vacuum tank.


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PostPosted: Sun May 12, 2019 12:38 pm 
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Copper ring pried out quite easily. Carb fitted in. Now I see why the rather desperate strategy was tried in the first place: the gooseneck has a mangled flange. I don't think the pictures even quite show just how bent and distorted it is, and I have no idea how it got to such a state. But I don't think any gasket will solve the problem. So, yes, I am in search of a correct carb or at least the gooseneck, and I'd prefer it came with the throttle complete, as my parts look home-made.
Thanks for explanation of vacuum. Car ran fine before. Car has an electric fuel pump in place of old pressurized system.
Mike, Vancouver


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PostPosted: Sun May 12, 2019 2:15 pm 
Now I see the issue too. You could use a thick gasket and I would not be afraid to do that. Best would be either have that surface machined or replace it. Those top pieces are hard to find in good condition. I do not have one. Sure would like to see you go back to the pressurized system. It works quite well. DO you have the hand pump and the air pump from the engine?


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PostPosted: Sun May 12, 2019 4:31 pm 
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Would my carb work for what he needs Doug ?
1.79 with caliper


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PostPosted: Mon May 13, 2019 12:06 am 
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My car has the air pump. Not set up, however — instead there is an electric fuel pump.


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PostPosted: Mon May 13, 2019 12:09 am 
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The dash has the plunger pump, and the mechanical pump is still present on the engine, complete with tubes, though I haven’t followed them, apart from one up to the gauge on the dash.


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PostPosted: Fri May 24, 2019 12:03 pm 
Is it fixed yet, Mike?


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