|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
05-16-2021, 05:29 PM | #1 |
Junior Member
Join Date: Feb 2019
Posts: 15
|
Model A Transmission
OK, took transmission out and this is what it looks like, what do you think? Everyone suggested I rebuild myself but don't know a good gear from bad?
|
05-16-2021, 07:21 PM | #2 |
Senior Member
Join Date: May 2016
Location: Glide, Oregon
Posts: 1,339
|
Re: Model A Transmission
George Bell has a good series on YouTube. https://youtu.be/XYVHcLX1qXY
__________________
Ruth "Sometimes you really DO need to read the whole thread" |
Sponsored Links (Register now to hide all advertisements) |
|
05-16-2021, 08:39 PM | #3 |
Senior Member
Join Date: Jun 2010
Location: Danvers, Ma.
Posts: 712
|
Re: Model A Transmission
rotate your gears and just check all teeth on each gear, from what I see, they're fine. You need to check the run-out on the main drive gear shaft where the pilot bearing sits on. Good bearings are a must, your originals may be good if you're lucky. They may even have been changed at some time. The shaft oil seals are pretty good to have also. Those are an after-market part. Les Andrews book is good to follow.
|
05-17-2021, 04:48 AM | #4 |
Senior Member
Join Date: May 2010
Location: Gwynn's Island Va
Posts: 1,386
|
Re: Model A Transmission
The biggest difference I see is rebuilding the shift tower. This can make a huge difference in shifting.
Pedal bushings and any other moving parts will also improve transmission performance. Reverse gear is usually in perfect shape. Bearings are a must. |
05-17-2021, 04:36 PM | #5 |
Senior Member
Join Date: May 2010
Posts: 1,304
|
Re: Model A Transmission
That trans will work OK but it will be noisy for sure . If it were mine I would hunt up some good used gears and replace .At the swap meets you can get lucky and buy a good trans that needs no work . Once the gear teeth get cratered as some of yours look to be they are at their lifes end .
John in Suffolk County England . |
05-17-2021, 05:07 PM | #6 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,436
|
Re: Model A Transmission
Sponsored Links (Register now to hide all advertisements)
I've known folks that put together the trans with gears that have some pits and decent used but still serviceable bearings and such and have gotten away with it but a person just has to use their best judgment on what they want to get back out of the work put in. A lot more is available now than there was 30 or 40 years ago. I'd be looking for the best caged rollers available. Some of the Asian stuff doesn't hold up well so check with the sources that back their parts or re-use good originals. Just make sure they are good. Check this thread on specific bearings. https://www.fordbarn.com/forum/showthread.php?t=298125 Last edited by rotorwrench; 05-19-2021 at 10:56 AM. |
05-17-2021, 05:07 PM | #7 |
Senior Member
Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,897
|
Re: Model A Transmission
Why did you take it out of the car? Was it making noise or slipping out of gear?
__________________
A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. |
05-17-2021, 06:52 PM | #8 |
BANNED
Join Date: Dec 2019
Posts: 1,196
|
Re: Model A Transmission
The extent of wear can be told by looking at the tops of the gear tooth. Yours are beyond normal grind wear and show a deeper pattern where the gear rides.. if your in, replace them.
|
05-19-2021, 09:12 AM | #9 |
Junior Member
Join Date: Feb 2019
Posts: 15
|
Re: Model A Transmission
It did pop out of 2nd a few times and a little hard going in 2nd at times,pulled engine to do a refresh figured I would do both at the same time.
|
05-19-2021, 10:18 AM | #10 |
Senior Member
Join Date: May 2010
Location: on the Littlefield
Posts: 6,159
|
Re: Model A Transmission
2nd gear looks to have wear that contributes to popping out, look close at the cluster gear
There's a picture in the service bulletins depicting your wear that says the cause is not fully putting it in second |
05-19-2021, 10:33 AM | #11 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,354
|
Re: Model A Transmission
Here's that service bulletin.
https://modelagarage.com/service_bul...gear-shifting/ Not sure I'd phrase the cause as "not fully putting it into second," rather the stated cause is starting in 2nd and not fully depressing the clutch (I assume when downshifting from 3rd, since this driver appears to have not used 1st at all). Last edited by alexiskai; 05-19-2021 at 12:34 PM. |
05-19-2021, 12:25 PM | #12 |
Senior Member
Join Date: May 2010
Posts: 914
|
Re: Model A Transmission
|
05-20-2021, 10:54 AM | #13 |
Senior Member
Join Date: May 2010
Location: Encino California, near Burbank
Posts: 935
|
Re: Model A Transmission
Most interesting is the range of evaluations. I have been taking much better Model A transmissions out of service. Others see a full range of condition. So many transmissions have been serviced and rebuilt in these many decades that I rely on my sense of what is good and bad. Out west so many of these crash boxes have been replaced by later, more user friendly, that they are used as door stops and ultimately tossed. Your trans would go directly as it seems to be an unserviced, worn out original. As for automatic replacing bearings and other parts, I guess I have more respect for my money. "What's in your wallet." Fred A
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|