PackardClub.org

Compression OK. Compression tests should always be done with both choke and throttle valves fully open.

Do you think it's a Packard engine? Packard made many different 12-cylinder motors in different eras, some overall photos would be helpful.

As I recall there are core plugs partially covered by the flanges of the exhaust manifold - any signs of leakage there? Hate to even mention the possibility but cracks in the block, often in the exhaust valve seat area, could also be the cause. Does the car have a history of needing cooling system r...

I don't know, try contacting the usual vendors and if you find that someone has them, let us know.

Hmmm.... surprised it's not noted in the parts book. Do you have reason to doubt Eaton Detroit?

I have an 1101 front spring in the cellar, I don't recall which body type it was from but I'll count the leaves later today.

UPDATE: 10 leaves on my spare front spring.

Spring load and rate varied, depending on the body style; # of leaves may as well but I don't recall. It's all in the 1933-36 Master Parts List, reprints available, do you have a copy? If not you really should have it, its an essential for restoring these cars. When I get back to my office tomorrow ...

Absence of the patent plate and anti-theft number makes it kind of like a person without a birth certificate. Do you have documents or other info to establish the car's authenticity?

What's the wheelbase?

I'd very much like to see a photo of the patent plate (vehicle number plate) and the theft-proof number (large embossed 6-digit number on the cowl) of this car.

SAE 50 motor oil or SAE 90 GL-1 gear oil (simple mineral gear oil) are both very similar to the original Bijur Oil. I've used both rather interchangeably over the last 50+ years, never a problem attributable to either.

To my knowledge tinted glass came to all domestic manufacturers about 1952. What appears tinted before that date is probably just age-related deterioration, either of the plastic inner layer or the glass itself. Remember those lively purplish lenses of early Twin Sixes? Caussed over time by manganes...