clubcoupe Posted September 3, 2009 Report Posted September 3, 2009 Hello, I recently got a 1946 Dodge 4dr custom sedan (new project) with a Flathead 6 cylinder engine and Fluid Drive transmission. I don't know if the engine has been changed before or not, but I bought a points set from NAPA for it and they weren't right so I thought maybe the distributor has been changed at some point or the engine isn't original and may be newer. The engine casting numbers I found on the left side of the block around the top near the head was D42-T22075 can anyone ID that for me? Thanks, Dave Quote
Plymouthy Adams Posted September 3, 2009 Report Posted September 3, 2009 (edited) D42 is 51/52 engine HOWEVER that T is not supposed to be there in a sedan engine this engine should have distributor #1AT-4011 Your original engine should have a D24-****** number and original distributor should be #1GS-4207A-1 Edited September 3, 2009 by Tim Adams Quote
greg g Posted September 3, 2009 Report Posted September 3, 2009 the dist number taken to the store will get you thr correct points. Quote
clubcoupe Posted September 3, 2009 Author Report Posted September 3, 2009 Thanks for the info, I had the distributor out today, but didn't write down the information off it. I've been trying to get the car started. It's getting fire and fuel and each cylinder was showing 120lb compression cold since I can't get it to operating temperatures. It started once for about 10 seconds the other day (and it was tough to get it started then) I've bypassed the original ignition wires and just run me a direct wire from the coil to the battery and made myself a starter switch using an old starter button I had with some wire and alligator clips to the solenoid and I can't get it to run. Doesn't even sound like it wants to hit now. I've replaced the plug wires so far and points are firing and I got fire from the coil as well as fire to the plugs. I've checked the timing also and that seems to be right on. So I believe I'm going to replace the cap, button and points and get a new set of plugs and see if that helps next. Dave Quote
Plymouthy Adams Posted September 3, 2009 Report Posted September 3, 2009 mixing and matching of some caps and rotors is icks-nay the 1AT is the low profile cap and rotor..if you have the taller installed.....should start and run but cut out under load.. Quote
greg g Posted September 3, 2009 Report Posted September 3, 2009 there were at least three different distributors used they all look very similar but differences in body casting height, and points location make it necessary to match the cap points and rotor to the correct dist number. Quote
Frank Elder Posted September 3, 2009 Report Posted September 3, 2009 You haven't mentioned it yet, but you do know this is a 6V POS. ground system in its stock form right...someone might have changed the battery cables over 12V replacements not knowing that a much thicker batttery cables are required.Gook luck and welcome aboard! Quote
clubcoupe Posted September 3, 2009 Author Report Posted September 3, 2009 Thanks for the info... yeah I knew it was positive ground and I have it hooked up right. (I'm pretty sure anyway) I went to NAPA today and ordered what I need to do a tune up (wires, cap, rotor, points) except the plugs, I'll get those at Autozone since I work there. I'll try the tune up first and see if that helps. If not then I'll be asking more questions. Dave Quote
james curl Posted September 4, 2009 Report Posted September 4, 2009 You might be suprised what Auto Zone offers on their web site. I ordered a water pump from them. I took the web site numbers with me when I went to Auto Zone. The counter person said that their computer didn't list 48 Plymouths so they would not have the part. I told him to plug the web site part number into his computer and see what he got. I got my water pump the next day from his store. Quote
clubcoupe Posted September 5, 2009 Author Report Posted September 5, 2009 Yeah I know we can get a lot of parts for these old cars, but a lot of the numbers are inactive now and I have to call to get them to add them back for us so I can order the parts. It's a lot less hassle for me to just go to NAPA and get the parts the next day. The points for the 46 showed available to me there, but the 51 wasn't. I could get the cap, but not the button... it's kinda weird how all this works. I know I could probably get them there, it would just take more research in the books and calling corporate. I've done this a lot for people that come in with antique's that need Carburetor's and other parts and it can be time consuming. I don't mind doing that stuff for others, but myself, I'd just assume to go to NAPA. Most of the ignition parts for my 52 Pontiac I got from Autozone and had listings on the parts still. Dave Quote
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