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Old 07-30-2014, 03:03 PM   #21
Roadster62
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Default Re: big mistake and a waste of time

Some people just can't drive sticks, that is why they made automatics. Bob
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Old 07-30-2014, 08:57 PM   #22
BILL WILLIAMSON
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Default Re: big mistake and a waste of time

FIRST, adjust your clutch up REALLY high, like maybe even 1/2' to 3/4" free play & your problem "may" be GONE WITH THE WIND!
Bill W.
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Old 07-30-2014, 10:31 PM   #23
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Default Re: big mistake and a waste of time

Quote:
Originally Posted by BILL WILLIAMSON View Post
FIRST, adjust your clutch up REALLY high, like maybe even 1/2' to 3/4" free play & your problem "may" be GONE WITH THE WIND!
Bill W.
I agree with Bill on this one. I'm no expert but gears grinding means that something is still turning when it shouldn't be, which would indicate that the clutch is not releasing fully. Ckecking and readjusting the clutch freeplay to even less than the recommended 1" as Bill suggests will cost you nothing and would be the first thing I would try.
Different oils may have some effect on changing of gears but I wouldn't think that it would result in making it impossible as you describe.
Good luck and let us know how you go.
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Old 07-31-2014, 07:30 AM   #24
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Default Re: big mistake and a waste of time

Nah, skip the synchro option. I reckon there's more joy to be had from fixing whatever's causing your problem with the original gearbox and enjoying the genuine 1928-31 gear shifting experience. That's what driving an A is all about!!
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Old 07-31-2014, 08:43 AM   #25
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Default Re: big mistake and a waste of time

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Originally Posted by oldredford View Post
Go get the Mitchell sync transmission.

are you buying? will pm you with address

fred
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Old 07-31-2014, 09:08 AM   #26
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Default Re: big mistake and a waste of time

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must be the lucas oil. can not upshift in any gears while in motion ,
it will grind hard.

before that I could shift most times with no grinding . I sais MOST times.

fredski



Again, just get rid of that lucas crap and you'll be OK. Foam just doesn't work.
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Old 07-31-2014, 09:44 AM   #27
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Default Re: big mistake and a waste of time

Well after changing my transmission oil which was like 25% low with 600W oil and lowering my cars idle speed, and slowing down how fast I shift gears, almost no grending...
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Old 07-31-2014, 11:25 AM   #28
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Default Re: big mistake and a waste of time

I use Chevron Gear Compound EP ISO 680. It works very well for the Model A in both the transmission and differential. It slows the gears quite nicely. The Mobil Oil version is MEROPA #680. I have used them both and highly recommend the #680.
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Old 07-31-2014, 03:50 PM   #29
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Default Re: big mistake and a waste of time

I rebuilt my differential and put synthetic 75/140 in it and the transmission and have had no shifting problems.
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Old 07-31-2014, 05:45 PM   #30
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Default Re: big mistake and a waste of time

I think some people are still not aware that the 600W number is a designation,not a viscosity.It is not 600WT.Some old steam mechanics tell me that the old 600W is between 140-240 viscosity.They said it varied because of the tallow content.If you think it through,the A has a simple low stressed gear transmission.Plain vanilla ball bearings,needle bearings,and some straight cut gears that just need some kind of lube.It might be helpful to have something kind of heavy to make it easy to shift,but most anything will lube it.My old D6 dozer has straight cut gears,just like a Model A,except big.80-90 is fine for that,and the book says to use 30WT in cold weather.They have a little more strain on them than the A does.About 5 years ago I figured I would change the trans oil in my A's.What I do is to take the drain plugs out when I park them for the winter,and they are pretty well drained by spring.I only had 90WT on hand when spring rolled around,so in it went.It is still in all three.I do notice I have to be a little more careful when shifting from second to third when hot,but that is all.
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Old 07-31-2014, 06:06 PM   #31
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Default Re: big mistake and a waste of time

Replace with sae 90 120 standard gear oil
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Old 07-31-2014, 07:40 PM   #32
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Default Re: big mistake and a waste of time

Perhaps with the 600 wt you are trying to shift quickly. Patience......... is needed to allow the gears to slow down enough to shift. I used to double clutch to upshift on my truck but I just had to settle down and wait for it.
Now that said when the transmission is cold I have to shift pretty quick in order not to clash the gears but in about a mile or two I'm back to shifting sloooow between gears.
Yes you will need to double clutch to go from 3rd to 2nd. Most try it at too high of a speed. I was and still am guilty of that on occasion.
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Old 08-01-2014, 03:32 PM   #33
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Default Re: big mistake and a waste of time

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Originally Posted by garyaodell View Post
I rebuilt my differential and put synthetic 75/140 in it and the transmission and have had no shifting problems.
I used Valvoline Synthetic 75/140 in Minerva's 2 tooth steering box, along with some clear looking grease pumped in by the previous owner. Gradually, after about a week's driving, it became easier & easier! She would ALMOST recover from a tight, quick, turn, UN-ASSISTED!
Bill W.
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Old 08-01-2014, 08:06 PM   #34
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Default Re: big mistake and a waste of time

I have been very pleased with the Lubriplate products for the transmission.
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Old 08-01-2014, 10:44 PM   #35
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Default Re: big mistake and a waste of time

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Originally Posted by fredski View Post
clutch has 1 0r 2 inches of free play. if some one [wife] depresses
the clutch with out motor running and in gear I can easily push car
back and forth. I don't think its hanging up.

fredski
2" is way too much. 1" is about right.
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Old 08-02-2014, 04:58 AM   #36
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Default Re: big mistake and a waste of time

Here I come! My Coupe shifts just fine all the time. My Pickup shifts fine until the gear oil becomes good and hot, then I have difficulty shifting into first gear from a stop. The idle is about as low as I can get it. Seems like the only thing that helps is to hold the clutch in for a goodly amount of time before I put her in gear. That's all I got.
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Old 08-02-2014, 05:52 AM   #37
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Default Re: big mistake and a waste of time

Gino, you need thicker gear oil, or you have a clutch out of adjustment or bent hub on the clutch disc, which is making the disc drag. It's rare, but maybe the disc lining is coming loose and causing the drag.
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Old 08-02-2014, 08:34 AM   #38
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Default Re: big mistake and a waste of time

Hi fredski,

Bill W. mentioning the fine tuning of the clutch pedal adjustment down to 1/2" - 3/4" reminded me of something else to not ignore for clutch adjustment which could possibly be overlooked.

If one initially measures the clutch pedal from the bare plywood floor board, then adds thick carpet underlayment, and/or bubble wrap, and/or foil faced sound deadening material, & provides interior floor board carpet or matting on top, the depressed 3/4" clutch adjustment could possibly be changed to 1-1/4" to 1-3/4" when the clutch pedal is now only "partially" depressed.

Furthermore, if clutch adjustment was performed with a bare metal clutch pedal & one later adds the thick rubber clutch pedal cover accessory, the back side of the rubber clutch pedal cover can add another 1/2" which could make the clutch pedal even more
"partially" depressed.

After any clutch adjustment, with or without interior floor carpet & with or without any rubber clutch pedal cover, it is never a bad idea to remove the sheet metal cover on the transmission's bell housing to look inside to see "if" the throw out bearing quits turning when we release the clutch; and/or is the throw out bearing turning continuously when we release the clutch pedal whereby it will certainly wear out too quickly.

Just another possible transmission grinding experience cause to share from years ago.
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Old 08-02-2014, 01:52 PM   #39
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Default Re: big mistake and a waste of time

The carpet factor was a big one for me also.
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