VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1929-1932 Early 1929 front engine mount hardware

I have an early 1929 and I see the Filling Station doesn't have any front motor mount parts. I also see that the master parts book shows that the early 29's have a 1/2" bolt(coarse thread) and lock. What length is this bolt, what type of head, (are there any washers?) and what does the lock look like. I have the hardware for the later 29 mount type(1/2" fine thread) but would use the origional if I could duplicate it(I am a pretty good machinist)or buy it from someone. Anyone have some help on this?

The first year for motor mounts was 1932.

I get what you are saying Dog---there was not a front rubber mount. None the less, there was a mount consisting of metal hardware as described above---an early 29 design and a later design as desribed in the 29-30 master parts book. Does anyone know what the early design looks like(the 1/2" bolt has a coarse thread)?

Popcorn,

It looks like you may already have the correct mounting bolt. According to the 1929/1930 repair manual, the coarse thread bolt is shown as the "second design" and is used to replace the fine thread bolt of the "first design". However, the manual also cautions against using the fine thread "first design" for replacement:

"The first design, Fig. 24, consisted of a bolt and lock and should not be used for replacement purposes.
The second design, Fig. 24, also consisted of a bolt and lock and can be used in place of the first design."

This is from page 23 of the Repair Manual. Sketches of the designs are on the following page, but do not provide any informtion on bolt size or length, or the threads.

Dan

DanR---Thankyou for your research. Unfortunately, I ownly have a 29-32 repair manuel and it doesn't have those pictures and dialoge. I ordered it tonight. However, I may need to know about it tomorrow if the engine rebuilder calls. So I am confused because the fine and coarse threads are in the engine front mounting plate which would be very involved to change. Did both bolts and locks cnsist of a stud and castle nut or can't you tell? Thankyou again!

Popcorn,

Can you tell me what the thread is below the frame for your model, course or fine? The length of the bolt is 2". I have a stud that is fine below frame and course above if that will work. I would be glad to send it to you. I have a 29 and mine is fine (20) both upper and lower so the bolt will not work for me.

Langer-Coarse thread above frame is what I think I need but hope to hear some more from DanR. The double ended fine thread bolt(stud) I have is 1 5/8 inches long. I would like to buy the bolt(stud-does it have a hole for a cotter pin?) E-mail me at andmfg@frontiernet.net

Popcorn,

I've sent you an email with the pages from the Repair Manual showing the mounting bolts.

Dan

Thankyou DanR that was very helpful.

OK everyone--click on the site below for the culmination of everyones efforts in solving the mistery of the early 1929 front motor mount hardware. I scaled the lock from the 29 frame and the bolt head to come up with dimensions for the lock. You will see my reproduction in the picture of the bolt and lock. I am sure the first time the engine came out the lock was discarded. I had to make a guess of the bent up tab on the lock--maybe someone has an origional lock and can give us the actual measurement and we can update the measurement on the diagram. Until then it is what I guessed it to be. Thank you to everyone! (the metal is .050 steel same as the main bearing locks)

http://s1198.photobucket.com/albums/aa446/popcorn1929/

Great machine work and documentation, Popcorn! Thank you. I wish I had learned to do that.

Jim

Looks good Popcorn, looks good. Very professional.
Dan