UOP
Well-Known Member
I'm hoping this is a simple fix, but my 904 (999 actually) isn't quite what I expected after installing a TF-2 kit. Two issues: one that I consider a real problem, and the other is just a little annoying.
Ok, so the first issue I'm having is a flare-up at the 2-3 shift. It happens whether it shifts on its own, or if shifted manually, at moderate to full throttle. When cruising at low rpm the flare is very minimal, if not unnoticeable, but when I go wot and shift at 5500 it'll flare so much it'll almost make the motor hit the rev limiter set at 6000. Here is some additional info to help:
1.) The trans kickdown (trans pressure lever) is adjusted so that when I go wot it's at it's max. I read somewhere that it could be too much pressure, so I tried adjusting it to where the kickdown wouldn't be maxed out, but I really couldn't tell a difference. Maybe a little bit, but not a definite improvement.
2.) The trans fluid level is full. Valvoline ATF+4 is what I'm using.
3.) When I installed the kit I followed the instructions for modifying the valve body exactly, but I didn't quite understand the part on adjusting the bands. I am the kind of person who needs exact instructions, and "tighten until snug" doesn't work for me. If someone were to tell me how to bake a cake using a pinch or this, or a dash of that, it'll be the worst cake ever. Sooo, I did adjust the rear band the best I could, but didn't touch the front.
4.) As far as I know, the trans was in perfect working order when I installed the kit. I was pretty easy on it until I was able to install the shift kit so I didn't get on it much, but as far as I could tell it was just fine. The 2-3 shift wasn't crisp at all, just sliding into gear it seemed, but it never slipped. Also the fluid and pan was clean when I pulled it apart to modify the valve body.
Ok, now for the other issue. Not so much a problem(I think), just annoying, but it may have something to do with the flare-up issue so I'm including it. Well, I knew the trans would shift much firmer after installing the shift kit, but I didn't expect it to be so harsh all the time. In first gear, it won't shift until I reach ~2250 rpm, and is harsh, pretty much chirping the tires every time not matter how easy I am on the gas pedal. The same for the 2-3 shift, but not quite as harsh. I can't tell you what mph is is since the speedo has never worked (need to have a cable made). I driver around town on crappy touring tires that are easy to spin, but I keep thinking I'm going to get pulled over one of these day for it. In regards to this problem, here is some additional info:
1.) When I initially installed the shift kit I intended to buy a higher stall converter, so when I drilled the holes in the plate they were drilled to maximum diameter. I'm sure this has something to do with it, but I don't know how much.
2.) For the 1-2 shift, I originally left the check ball out and the shift from first gear was ridiculously harsh, so I went back and reinstalled the check ball. That helped, but it's still not great.
3.) Just to see what it would do, I disconnected the kickdowncable from the carb and drove it around to see if it would help the 1-2 shift. It did, but the absolute lowest rpm it would shift would be just under 2k. I remember before the shift kit, if I disconnected the kickdown cable it would almost instantly shift to 2nd as soon as the car started to move.
Well, I hope that is enough info, but I can definitely answer almost any question since I've done all the work on the car myself. Crossing my finders, I hope this an easy fix. :?
Ok, so the first issue I'm having is a flare-up at the 2-3 shift. It happens whether it shifts on its own, or if shifted manually, at moderate to full throttle. When cruising at low rpm the flare is very minimal, if not unnoticeable, but when I go wot and shift at 5500 it'll flare so much it'll almost make the motor hit the rev limiter set at 6000. Here is some additional info to help:
1.) The trans kickdown (trans pressure lever) is adjusted so that when I go wot it's at it's max. I read somewhere that it could be too much pressure, so I tried adjusting it to where the kickdown wouldn't be maxed out, but I really couldn't tell a difference. Maybe a little bit, but not a definite improvement.
2.) The trans fluid level is full. Valvoline ATF+4 is what I'm using.
3.) When I installed the kit I followed the instructions for modifying the valve body exactly, but I didn't quite understand the part on adjusting the bands. I am the kind of person who needs exact instructions, and "tighten until snug" doesn't work for me. If someone were to tell me how to bake a cake using a pinch or this, or a dash of that, it'll be the worst cake ever. Sooo, I did adjust the rear band the best I could, but didn't touch the front.
4.) As far as I know, the trans was in perfect working order when I installed the kit. I was pretty easy on it until I was able to install the shift kit so I didn't get on it much, but as far as I could tell it was just fine. The 2-3 shift wasn't crisp at all, just sliding into gear it seemed, but it never slipped. Also the fluid and pan was clean when I pulled it apart to modify the valve body.
Ok, now for the other issue. Not so much a problem(I think), just annoying, but it may have something to do with the flare-up issue so I'm including it. Well, I knew the trans would shift much firmer after installing the shift kit, but I didn't expect it to be so harsh all the time. In first gear, it won't shift until I reach ~2250 rpm, and is harsh, pretty much chirping the tires every time not matter how easy I am on the gas pedal. The same for the 2-3 shift, but not quite as harsh. I can't tell you what mph is is since the speedo has never worked (need to have a cable made). I driver around town on crappy touring tires that are easy to spin, but I keep thinking I'm going to get pulled over one of these day for it. In regards to this problem, here is some additional info:
1.) When I initially installed the shift kit I intended to buy a higher stall converter, so when I drilled the holes in the plate they were drilled to maximum diameter. I'm sure this has something to do with it, but I don't know how much.
2.) For the 1-2 shift, I originally left the check ball out and the shift from first gear was ridiculously harsh, so I went back and reinstalled the check ball. That helped, but it's still not great.
3.) Just to see what it would do, I disconnected the kickdowncable from the carb and drove it around to see if it would help the 1-2 shift. It did, but the absolute lowest rpm it would shift would be just under 2k. I remember before the shift kit, if I disconnected the kickdown cable it would almost instantly shift to 2nd as soon as the car started to move.
Well, I hope that is enough info, but I can definitely answer almost any question since I've done all the work on the car myself. Crossing my finders, I hope this an easy fix. :?
