Here is my final copy using all of the input from other interested Model A owners. We just included this in our latest October Newsletter for our local Model A Club. Feel free to share this listing with others and you may use in your newsletters. I know not everyone will agree with everything here on this listing but I gave everyone an opportunity to pick it apart earlier. So too late......
Model A Winterization Checklist
Cooling Area
It is better to top off the radiator with 50/50 mix of Antifreeze than to drain the radiator and engine. A drained block is inviting rust to form internally over the Winter. Inspect hoses looking for any leaks. Inspect Water Pump for leaks and tighten packing nut if needed and grease the front bearing. Inspect fan belt for wear and it can actually be loosened up during storage.
Fuel Area
The general agreement is to store the car with a full gas tank. Again not giving rust any chance to form internally inside the gas tank. It would not hurt to check for any fuel leaks at the shut off and carburetor lines. A top off of Real Gasoline without Alcohol is recommended. You may also wish to add some Marvel Mystery Oil or StaBil in with the gasoline for long term storage. With your engine running at normal operating temperature, turn off the fuel shut off valve and run the engine until it runs out of fuel thus draining the carburetor bowl.
Battery
Top off the battery with distilled water in all cells. Put on battery charger and top the charge off. It is recommended to monitor the battery over the Winter months and / or use a battery maintainer or trickle charger to keep any sulfites from forming and shorting out the plates at the bottom of the cells. Most 6 volts batteries can offer approximately 10 years of life with proper running charging and maintenance. It is optional to remove the battery from the car and keep on a wooden stand. This may protect the battery holder from corrosion. Also it is recommended to wash the battery case with ammonia or a baking soda solution to neutralize any acids. It is good to put a coating of dielectric grease on the cleaned off battery terminals for protection as well.
Tires
Top off the tires to ~ 35 psi of air pressure. Some people like to jack up their car and put on 4 jack stands to keep the tires off the ground and to prevent flat spots. You can release the parking brake as well. This is also a good time to look over the tires for general condition and you may desire to put on a tire preservative on the rubber. Lug nuts should be torque to at least 65 foot pounds.
Engine
Two trains of thought on oil changes. 1.) Good to do the oil change when you put the car into storage as it will eliminate any acids that formed in the oil over the touring season.
2.) Just do a oil change in the Spring when you get the car out of its Winter hibernation. Same thoughts on Fall versus Spring are also on lubing the chassis grease zerks and oiling any lube spots.
Remove spark plugs and spray in fogging oil into the cylinders. Clean and regap spark plugs and replace.
Distributor
Set the point gap and put a business card in between the points to prevent corrosion and to keep the point surfaces clean.
If you are running a fuse please remove the fuse to prevent any possible electrical shorts over their storage that could possibly cause a car fire. Yes it has actually happened to Model As.
Body of Auto
Wash and dry off carefully. Polish or Wax. Cover your Auto with sheets or a car cover allowing air to reach the vehicle. If you use a top dressing it would be good to apply it now… Clean upholstery and put on rubber and leather conditioner where needed.
Rodent Control
Mice love Model A’s…. They get into the upholstery and make nests. They go into the engine block via the exhaust, open radiator caps, and oil intake tube. Cars have been known to get nuts and acorns loading up the engine blocks, radiator hoses, radiators, muffler and tail pipes.
Over the years people have sworn that Irish Spring Soap and Bounce dryer sheet work as a rodent repellent. We have also seen where this doesn’t work and the soap is actually a food supply. Old timers used moth balls in their cars as the deterent. Some people state that aluminum foil under the tires prevent the mice from crossing that surface to climb into the car.
There are rat and mouse poisons. Highly recommended by Farmer Mike Peters is :
https://www.farmandfleet.com/product...mini-bars.html
Also mouse spring traps, and mouse glue traps all work but have to be monitored and emptied. Careful off your pets around any of these mouse control solutions…
Some people put a wad of steel wool into the exhaust pipe to prevent the mouse from entering. Some put an aluminum or plastic baggie with a rubber band around the exhaust pipe, carburetor intake, and oil intake tube to keep both the critters out and any moisture that can enter your engine to create internal engine rust. Thank you.
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