I had a similar problem with my 1940 110 6 cylinder. I called the Evapo-rust help line and they assured me that it would not hurt the engine as the only thing that it destroys is rust. I drained and flushed the engine several times then: pulled the thermostat housing from the top of the head and poured in the Evapo-Rust into the opening right up to 1/4' from the top of the head. I allowed it to sit for six weeks.I flushed and filled again and added 50/50 Prestone and DISTILLED water.That seamed to do the trick. No more overheating on flat ground but it overheated after pulling a long grade. Last winter I pulled the front clip and had the rad. cleaned, flow and pressure tested,installed a new manufactured water pump and replaced the water distribution tube that was plugged at cylinders 5 and 6. I did alot more work than that on it s(see my post 1940 rebuild) My problem was solved. I did not start the engine with the chemicals in place so I don't know if circulation would have helped clearing the water distributiion tube. I am sure that the water pump was not working to full capacity. I have since driven it over 1,000 miles with no trouble.
Jim

I had the clock in my 1940 110 done by The Clock Works. It has been running fine for two years now. The price was reasonable and the service was exceptional I added the extra twenty bucks for express service and was not dissapointed. The number is 715 479 5759 or you can find them on line. I guess I'm a purist and would keep it oririginal, afterall if you need a clock that keeps perfect time use your cell phone.
J

I just completed a timing chain replacement on my 1940 110. The oil seal is the same as the 120. My engine builder friend advized me to put a thin coat of wheel bearing grease on the cork seal where it rides on the cover and to liberally apply motor oil to the timing chain and gears after it is put in place. If you look closely the bottom part of the cover gasket meets the top part of the oil pan gasket. I applied a very thin coat of silcone sealer to the gaskets and was very careful as to the way I placed it. I was fortunate to have done it correctly, no leaks. My friend told me that I would be surprized at the extra power that the new chain and gears made. Also by accident I found a you tube 10 part vidio called 1938 Packard coupe restoration by Mark Lamburt that was very helpful. I would send a link but I'm not a computer guy. Maybe next week when my 15 year old grandson visits.

Codenser is the automotive term for a capacitor. They are rated in MF (micro farad). The rating is usually stamped in the top.I took mine to my local Advance Auto and they looked it up both ways as a Packard part and the mf rating of the capaciter that I brought in. I walked out of the store with the part I needed for less than $10 bucks no shipping or waiting for the Postman.

I purchased my 1940 Packard 110 in August of 2021. It had a Cosmetic restoration but was not running after sitting covered in cold storage for 17 years.After a gas tank restoration,a carb. rebuild, a new fuel pump, and Points and plugs. I got it running but experienced over heating problems.I flushed and filled the cooling system several times but after 2 years of experimenting I knew that I had to take the next step.By accident I found Mark Lamburt's 1938 Packard restoration on You Tube which helped me alot.Over the winter I finished the restoration. I pulled the front clip, removed the radiatorand had it boiled out. flow and pressure tested. Next Ipulled the front lever action shocks and sent them to Apple Hydraulics for rebuild, I rebuilt the generator. Moving on to the front motor mount rubbers. with the front motor mount out of the way I replaced the timing chain and gears.The brake lines had been redone but not the Master cylinder so that was replaced along with the front brake cylinders so I rep;aced them.As long as the front clip was off I replaced the water pump and water distribution tube and added an oil filter. With that completed I reinstalled the Rad. and new hoses. With an early spring in N.W. Pennsylvania I have driven it about 500 miles with no problems I have climbed all the hills that used to cause it to over heat with no trouble. My engine builder freind to me that I would be surprized at the increase in power the new timing chain would give me.He was right.

I own a 1940 Packard 6 cylinder. Any thoughts on adding an after market PCV valve?