Re: V12 Engine rebuild advice

Posted by Tim Cole On 2010/4/12 21:32:22

I do the V-12. We use an experienced motor builder who will work the entire short block which carries their guarantee. I do the stem grinding myself because that is really not in their skill set. The oil pump is a major safety factor to address. It's up to the owner whether they want the premium parts from Dale Adams, or something less OEM. Dale's bearings, springs, and valve silencers are a masterpiece.

A Max Merritt/ PI oil filter and coil set are also obligatory for a good motor.

You should reference the Packard V-12 articles at Dale's Website - Dale Adams Enterprises - to get an idea of what you want to buy.

Besides the cosmetics that are second only to the Duesy, the entire vacuum system should be looked at as well as leaks will make a motor sound like it has burned valves.

The Packard V-12 seems to respond very well to following the book and should initially start up in a half turn when set up right. It's a great publicity stunt to start the motor for the first time in front of visitors.

Any of these colleagues will do a great job on your motor, however, cylinder heads should be carefully checked because - according to Turnquist - the service limit is .007 inches and too much milling will cause big problems.

Cheers