Another Gas Tank And Fuel Sender Unit Question

[50 coupe]

I have found lots of good info here about these items but haven't found the answer to my particular question. My car (1950 Ply Business Coupe) came without the gas tank or fuel gage sending unit. I believe I will go with the 55-56 Chevy steel tank, unless anyone has reason I should use something else, but not sure what fuel gage sending unit I should use. I know my car originally had the 1 wire electro magnetic unit. I will keep the car 6 volt so should I order a repop 1 wire unit or would this be an issue with the 55/56 chevy tank? If so, what is my alternative?

[TodFitch]

A one wire generic/universal sender with the appropriate range for Mopar (I believe 10 ohms to 78 ohms) should work as long as the mount on the Chevy tank will accept it.

[Alshere59]

The sender has to be rated 78=10 ohms. The order is important unless you can reverse the arm. I am working on my 50 Plymouth tank as we speak. The thread below gives what I researched. I went with the 49 ford. Not sure if the business coup tank is different or not.

http://mopar.pairserver.com/p15d24ph_forum/index.php?/topic/32701-gas-tank-50-plymouth/

 

Here is the tank mocked up under the car. The chevy tank will be about the same amount forward. The jeep tank will fit but will need the filler worked. Looking back at the profile after getting mine the chevy tank may be a better fit.

 

 

Check your PM's as well

[50 coupe]

Thanks TodFitch and Alshere59, I have read both your previous threads in researching this and was thinking the same. I looked at the Jeep tank but thought the Chevy tank would be a better fit. I can make the generic sending unit fit the Chevy tank, just wonding if it was a direct 'bolt in' but can make it work if it isn't.

[50 coupe]

I ordered the55-56 Chevy tank from Tanks Inc. with the appropriate 10-70 ohms sending unit. The next day Tanks Inc. called to inform me that the Chevy tank does not have a bung to attach the fuel line to and must be used with the 55-56 Chevy sending unit and built in pickup. The Chevy sending unit is not the appropriate ohm range for my car. I thanked them for their follow up and really appreciate that they called me vs just sending it out to me! I changed my order to the 49-51 steel Ford tank, which has the pickup I can attach a fuel line to and use the 10-70 ohm sending unit. So far I am very impressed with Tanks Inc. service. Just wanted to share.

[Alshere59]

Interesting info on the tank. I have the 49 Ford and while I haven't had a lot of time to work on it, I know I have filler neck alignment issues ahead. I have the angled hose coming and a new angled spout is being welded but I did not allow enough for how tight the opening is.

I had looked at going with the chevy tank. (Below) The biggest issue I see is it will be hard to route the exhaust with the chevy tank as it is almost exactly 3 inches wider than stock.. Did they by chance mention this model in your conversation? I ask because it looks to accept the fuel sender etc.

 

You are looking at the steel tank but the filler neck will be placed the same.

 

http://www.tanksinc.com/index.cfm/page/ptype=product/product_id=352/category_id=113/home_id=59/mode=prod/prd352.htm

[50 coupe]

No they didn't. I asked if there was a tank they recomended for my model car but they didn't have one to recomend. Don't know if the Chevy tank would fit any better than the Ford, unless you have heard that it does. What kind of alignment issue with the Ford tank are you referrencing? Is the filler neck the issue? Can you use some of that flexible steel exhaust tubing?

[Alshere59]

The Chevy will be tight on the exhaust, the ford fill tube issues. That is all I know at this point but still working it. PM sent to my pics. You have my email as well.

[OldDad67]

The Chevy will be tight on the exhaust, the ford fill tube issues. That is all I know at this point but still working it. PM sent to my pics. You have my email as well.

I'm in the process of installing a 57 Chev gas tank in my 49 Coupe, the only difference between the 57 and the 55 and 56 is that the 57 has a vent hose. Other than that the tanks are the same for the passenger cars. I went this route because of the exhaust issues with the stock tank. Now I can run 2 1/2 exhaust if I want. I used the stock Plymouth tank brackets, I had to reposition them closer and then I used the stock Chevy tank straps. I'm going to use the stock Plymouth sending unit by cutting a 1 5/8 hose in the top of the tank. For fuel pick-up I'm using a 3/8 stock Chevy sending unit with the float removed since it is only used for fuel pick-up. I'll try and get some photo's out in the next couple of days.

[OldDad67]

I'm in the process of installing a 57 Chev gas tank in my 49 Coupe, the only difference between the 57 and the 55 and 56 is that the 57 has a vent hose. Other than that the tanks are the same for the passenger cars. I went this route because of the exhaust issues with the stock tank. Now I can run 2 1/2 exhaust if I want. I used the stock Plymouth tank brackets, I had to reposition them closer and then I used the stock Chevy tank straps. I'm going to use the stock Plymouth sending unit by cutting a 1 5/8 hose in the top of the tank. For fuel pick-up I'm using a 3/8 stock Chevy sending unit with the float removed since it is only used for fuel pick-up. I'll try and get some photo's out in the next couple of days.