Indeed...
Tail light socket fitted with brass lamp fixture.
Drilled out the bottom to get some clearance.
Yeah it works! Yet barely.
1941 Plymouth Special Deluxe (P12) 2 Door Sedan
A daily runner project.
Sunday, April 3, 2016
Friday, January 2, 2015
Philco C4608 Radio Bench-test
Philco Auto Radio Model C4608 (Mopar Model 802)
We did a bench test of the original 1941 Philco Auto Radio. The unit draws 9.2 amps at 6.3 volts, so it was no suprise that it maxed out my 5amp variable power supply. The radio slowly came to life with clips and chirps, tiny snippets of voices.
Thanks to the folks at NostalgiaAir.org, it was easy to find the manual for Nora's dash mounted Philco Auto radio.
Scan of the dial face. The plan is to cut a new glass plate, then mask, paint and laser etch the text.
The black areas will be masked out with machine cut vinyl and the silver area painted first. Mask for the black lines when then be removed and painted. The mask for the transparent area will then be removed. A laser will be used to cut a jig for the glass plate and etch out text and graduations.
We did a bench test of the original 1941 Philco Auto Radio. The unit draws 9.2 amps at 6.3 volts, so it was no suprise that it maxed out my 5amp variable power supply. The radio slowly came to life with clips and chirps, tiny snippets of voices.
Dial Face |
Chassis View |
Tube Location Label |
Chassis Stamp and Antenna Plug |
Thanks to the folks at NostalgiaAir.org, it was easy to find the manual for Nora's dash mounted Philco Auto radio.
Complete Schematic |
Dial face |
Dial Face from owner's manual |
Vectors for mask and laser etching. |
Enhanced model with original font and graduation squares. |
The black areas will be masked out with machine cut vinyl and the silver area painted first. Mask for the black lines when then be removed and painted. The mask for the transparent area will then be removed. A laser will be used to cut a jig for the glass plate and etch out text and graduations.
Tuesday, September 2, 2014
Distributor and tuning
The weekend Nora got a timing tuneup. Although Nora is a '41 she has the engine from a later model Plymouth. The engine number begins with a P22 so it either a '51 or '52. Many of the parts are still interchangeable nonetheless.
Tuning parameters for 1949 to 1952 U.S.-built Plymouths (P-17, P-18, P-19, P-20, P-22, P-23)
I suppose there was supposed to be a conical gasket between the engine and distributor so I fashioned one from a couple layers of fibre gasket material and gasket goo. I seems to work as well and didn't leak any oil after a 30min drive.
After about a year driving on the old points and condenser set-up. I swapped them out for an electronic ignition from Pertronix. The model for my distributor and 6 volt positive ground was the 1362P.
The after removing the post, the pick-up screwed into place on the advance plate. A magnetic ring slips on under the wiper.
This points replacement is a huge improvement. The engine starts better, runs smoother, and has way more power. Hundred bucks well spent.
Tuning parameters for 1949 to 1952 U.S.-built Plymouths (P-17, P-18, P-19, P-20, P-22, P-23)
- Spark plug gap - .035"
- Breaker gap - .020"
- Initial ignition timing - T.D.C.
- Dwell setting - 34.5 deg. to 38 deg.
- Firing Order - 1-5-3-6-2-4
Internals of a IAT-4003 Autolite Distributor. |
An artist rendering of a Distributor for a P22 engine. |
Drilling out the rivets on the advance plate. Won't be needing that any more. |
Pick-up and magnetic ring. |
Wednesday, July 2, 2014
Parts Reference
The engine in my Nora is from later model, '52 Plymouth Concord. The engine has completely interchangeable parts so it is relatively easy to still find the required parts today.
Lately, I've been having some fuel leak around the gaskets in the carb and fuel pump, so it's time to replace them. The carb is a Ball and Balls design manufactured by Carter (model D6H1).
More on the fuel pump once I find my paper scrapes with the model number.
Cross references...
http://www.rreid.net/1941Plymouth/1941xref.html
Lately, I've been having some fuel leak around the gaskets in the carb and fuel pump, so it's time to replace them. The carb is a Ball and Balls design manufactured by Carter (model D6H1).
More on the fuel pump once I find my paper scrapes with the model number.
Cross references...
http://www.rreid.net/1941Plymouth/1941xref.html
Wednesday, June 25, 2014
Wednesday, May 14, 2014
Rear End Research
1941 Rear-end Compatibility Notes:
Wheelbase 117in
Front Tread 57in
Rear Tread 60.125in
Ratio 3.9:1
Possible replacements:
1939-48 Plymouth, DeSoto, Dodge?, Chrysler
1987-90 Dodge Dakota Track Width: 60.8″/ Ratio: 3.55:1 (1250rwd) / Ratio: 3.9:1 (1800rwd)
Other references:
http://www.carnut.com/specs/rear.html
Tuesday, May 13, 2014
Favourite resources
http://www.ply33.com
"Plymouth: The First Decade" Plymouth 1928 to 1948 parts cross-referencing and great history .
http://www.allpar.com/history/plymouth/1940.html
"Allpar" Nice history section. The ads make the website look trashy but the articles almost make it worth it.
http://www.plymouthbulletin.com/rearbrakes.htm
"Plymouth Bulletin" Practical articles and mopar history.
http://www.plymouthbulletin.com/adventure01.htm
"Plymouth Bulletin" Adventure travel.
http://www.secondchancegarage.com/public/432.cfm
Engine specification for the 217 engine (from 1952 Plymouth Concord).
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