Hello everyone I am new to this page but have used it on the last 2 model T I have built. I am having a weird problem with the one I am currently getting drivable for a customer of mine. When you push the pedal to go forward it goes reverse, when I push the reverse pedal it goes low gear? How is that possible? This engine and trans did get gone threw at some point in the last 30 years. Engine runs fine. Could something be going on with the triple gears in the transmission? Or somehow a band adjustment? Thank you very much any input is appreciated.
Have you been into the rear end? Wouldn't be the first time someone put the ring gear on the wrong side.
Rear axle is assembled backwards. Ring gear on the wrong side.
I have not been into the rear end at all. That makes perfect sense. Thank you both very much. I have manuals but have not been into the rear end. Is it pretty straight forward to take apart and flip it around?
Ring gear in backwards. Happened many times back in the day. Pull the rear end apart and reassemble correctly with bronze washers. Get the MTFCA manual on the job.
Yes, assuming everything else is o.k., it's easy to flip the insides around.
If the rear end is actually backward, which I think it is, it would also run backward in high gear. Probably best to make this check with the wheels on jack stands. It wouldn't be safe to drive backward in high.
The only way that the car can go forward with the transmission in reverse and vice-versa is if the rear end was put together wrong. It's not difficult to put the rear axle together correctly but, I would suggest that you fully rebuild it while it's apart because more than likely there are several worn out parts.
The innards inside the housings are a unit..both axles and diff. carrier. Easy to swap over into the left housing goes the ring gear.
My bench mount is marked in event of a Senior Moment.
Travis I agree but easily checked pull the diff plug if you blocked by a medal disc it's backwards if you see diff case it something else
When there's a 50-50 chance of putting something back together the same way it came apart, 85% of the time you will put it together WRONG.
I recall reading in a Model A magazine years ago about a publicity stunt two guys pulled in 1928 to promote the new Ford. They purposely switched the ring gear to the opposite side of the rear end of their roadster so that they had three speeds in reverse and one forward. Then they DROVE the car that way - backwards - from California to New York. In the late 1960's, a couple MAFCA members did the same thing with a restored '30-31 roadster to publicize the upcoming MAFCA convention that their club was hosting later that summer. Both stories appeared in old issues of "The Restorer".
I'm sure some enterprising Model T guys did the same thing "back in the day". Can you imagine backing up all the way across country (3000+ miles!), looking over your shoulder the whole time, just to get your picture in the newspaper with your name misspelled?
Marshall, the optimist
If not already done, replace the babbitt thrust washers with bronze replacements.
Yep, the rear axle put together backwards makes for a weird first drive. Don't ask how I know!
Not a hard fix, just takes some time and the rear spring can be a pain to reassemble.
Travis, if someone drove the car before you worked on it, they would know about the car going the wrong direction in low.
There was a posting some years back about a rear end being rebuilt. The owner ran into the front garage wall as he pressed in the reverse pedal.
That is a good assumption.
(Message edited by 6volt on February 17, 2016)
Bill, I think you meant to add your post to a different thread?
Aha! I saw your post in that split second before you edited it!
(Message edited by cudaman on February 17, 2016)
Shucks! Mark, you caught me!
I've always wondered who ended up with Laurel and Hardy's T.
One way to get a low mileage car. Just run it in reverse for a few thousand miles.