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Thread: MTX-75 Problems going into 3rd? Reply to Thread
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Topic Review (Newest First)
09-27-2013 12:07 AM
ZetecGuy I believe I am having a very similar issue. My 2nd and 4th gear synchro are going bad I think, grinds instead of shifts at higher rpms. Low rpm driving is fine and have to rev match every time. Lets say I go through 1st fast shift into second at 3500 plus rpms, all grinding. Same for 3rd to 4th. 1,3, and 5 are perfectly fine. This first happened while engine braking too intensely. 90mph then downshifted into 4th, tachometer red lined. Then 2nd and 4th immediately had issues shifting. Already adjusted cables, it helped a little but did not fix the issue. Next step is to flush the trans with better fluid. Any help would be greatly appreciated!!!
12-03-2012 08:11 PM
whynotthinkwhynot WOW.... reading directions really helps. I'm going to have to add this to the How-To if it works. The most important thing is that I've finally found out what that red thing was that was in my glove compartment when I purchased the car!!



That, my friends, is the tool that you use to adjust your shift cables. I am proud of myself that I didn't throw it away for the past 7 years. I bet there are other FF's out there wondering what that thing is too. It locks the shifter in center so you can adjust the cables. The procedure is fairly simple, and I've been doing it all wrong all along. This weekend I'll adjust it correctly, and add that to my How-To.

Y'all will have to forgive me for being a bit lazy. I stayed up till 2 am Fri after getting up at 4am, got up at 5am Sat, went to bed at 10pm Sat, up at 6am Sun, and didn't get to bed until 10 pm after working on the car all day. Then I went to work at 4am again today. I'm totally beat. I feel like I'm in a fog all day long. Tomorrow it will rain, but if it isn't raining after work- I'll see if I can do it then. Otherwise it's 2nd to 4th until Sat.
12-03-2012 06:35 PM
whynotthinkwhynot Huh. I shall check that out-- when I have time. I thought you adjusted the cables by turning the clamp. I drove today- 2nd to 4th, which is ok, but I lack acceleration getting on the highway. I actually wound out the car to the limiter in 2nd today- oops. Typically I shift at 6k even if I'm getting on it.

I'm going to break out the book tonight. Follow directions? Nah.... never.
12-03-2012 12:12 PM
iminhell By gripper I'm talking the adjustment on the transmission side, the cable ends. It''s sort of a grid pattern on the plastic ends.
Take the up/down cable and pull it out 1 gripper to lengthen the up motion. That should help the 3rd/5th issue.
12-03-2012 06:05 AM
whynotthinkwhynot Gripper? You think maybe I hit something when I was putting the tower back in?

I'll see what happens on the way to work this morning. Maybe I need a new shift tower after the pin broke on the other one. There didn't seem to be anything wrong with the one I took out yesterday. I was thinking there might be some physical obstruction on top of the transmission. I think it's going to come down to me having to remove the battery this evening and see what I can figure out.
12-03-2012 01:27 AM
iminhell Well if 5th is giving issue aswell, it's an alignment issue. The cable for the up/down is not centered.
Not a shifter issue IMO. Though adjusting the shifter will make it go away simply because it'll allow more cable movement, it will also allow more movement to 2/4 which are just fine. So you'll have too much cable, or sloppy feeling.

It's probably off maybe a gripper, 2 at max.
It's tough to feel the grippers on the cable ends but if you're soft you can feel what I'm talking about.
12-02-2012 09:50 PM
whynotthinkwhynot Thanks for the help everyone- here's to hoping I didn't screw up something in the transmission when I put it back in. You'd think 4th wouldn't work if I had.
12-02-2012 09:49 PM
whynotthinkwhynot Eh, I don't have the same shifter as you do. Mine is a Tri-Ax- 2 cables, and the pivot point on the shifter is where it stops- the arm ends in a ball. Instead of a cable under the pivot, there is a cable connected to the shaft, and a 90 degree arm that sticks out from the pivot. The cable on the shaft does the gear selection (vertical), and the 90 degree arm pulls a cable that does the gates (horiz).

Eventually I'm writing a How-To, but I'd like to know what the issue is with 3rd. It was going into it fine.

I'm just going to keep cranking down to add more cable to that one. I might be at the end of it- which is why nothing seems to help. Perhaps when I put the shift tower back in- something was amiss. I'm not sure. it simply feels like it is not going far enough into the gear. I get grinding or it pops out. It wasn't doing that before. 5th would pop out, but that's not a big deal IMO. 3rd is more of a problem.
12-02-2012 08:37 PM
iminhell 3rd seems to be the bad gear in all mtx75's.
The only thing I've ever found that helped (didn't fix) was switching to a lighter fluid. IMO, the Ford stuff, Syncromesh, ATF are all to thick at temp. A little thinner and the Syncro matches speed with the gear better, least that's my theory.

Also, cables do stretch over time and with ware. As well as the shift selector bushings.

I've never got my cables adjusted perfectly. Right now I'm set so 1-4 are looser while 5th and R are kinda a bugger.

Then there's the shifter base flex issue. I HATE Nylon.

Add up all the slop points in old parts and it comes to the point where no matter what you adjust, you just won't get it back to new.

New cables and a Contour/SVT shifter base go along ways to take up much of the slop.


Internally I wonder if knocking the sharp edges off the shift gate would help some. Kogbox is the guy to ask about that though ...
12-02-2012 08:11 PM
Magus2727 Does the same thing occurs when down shifting as up shifting? The going from 2nd to 3rd is the first time the later cable (not sure how else to say it) so it may either be catching or just has higher friction on that initial pull.
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