Had a similar issue with my 48. I found my problem to be improperly adjusted anti-percolation valves located in the carburetor. The fuel would percolate and empty the carburetor bowl into the intake manifold flooding the engine.

Thank you for the pictures I believe I have it now. I appreciate your help.

Weston thanks for the info you have a beautiful car. Don't think that is possible on the 48 the harness is way up on the left side of the fire wall. But thanks for responding.
Richard

I have gathered the parts needed to install an R11 in my 48 Deluxe Touring. I need to understand where the overdrive lock out cable goes through the fire wall. If anyone has a picture of where it goes through I would appreciate it.

These are the marking on the case of the overdrive unit.

R11-1B
WG DIV
A189
SB

There is no rectangular box with terminals on the side or end of OD. I guess I have an earlier model. Thanks for the information the more I learn the better this project will go.

That is a bit pricey. My R11 is on the garage floor and my Packard runs very good as it is. I do but plan to continue gathering parts. I have one question for the experts. In the electrical drawing for the R9 and R11 there are marked differences. Since mine is an R11 I hope I do not require a reverse lock out switch? Hopefully when the R11 was engineered it solved this issue.

Thanks for sharing I appreciate it I will try and get in touch with DennyZ. I have bought from Rhode Island Wire before and found them to be very helpful and reasonable in their prices. Thanks again for reminding me about Rhode Island Wire.

Thanks I'll check out fifth avenue.

Sorry to say the lock out cable nor the kick switch or OD relay were there. I would like to stay original. It may take awhile to find the other items.

Thanks for the info I went ahead and bought the R11 overdrive transmission. Now I need to located the other parts I need like the relay, switches and cable. If anyone knows of where these can be found I would appreciate hearing from you. Thanks