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Forward Look Technical Discussions -> Transmission and Rear Axle | Message format |
Myke![]() |
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Elite Veteran Posts: 1110 ![]() ![]() Location: Tulare Ca | Hey All! So my 58 Torqueflite has recently developed some strange symptoms that I'm trying to chase down. So when I fire up the car and the Trans is cold, It shifts fine albeit a little late. But as the fluid warms upit starts to develop shift issues. As it's warming it will slowly start to hesitate on shifting into 3rd, then second, then eventually D becomes almost neutral. However reverse and "1" and "2" work just fine even when warmed up. My first inclination is maybe I put the wrong fuild in and it's slipping? I had dex merc 3 in it but due to a emergency leak I had to put a universal dex merc in ass well as a quart of cheap general "ATF". I have yet to adjust the bands (though I did adjust them some years ago). I'm trying to figure out what might be causing this. I also have noticed a ticking noise that only happens in forward gears, only when the car is pulling away from a stop that doesn't happen in reverse or neutral, I'm not certain yet if it's Trans or just something else as it's RPM dependant and goes away once I've hit 10 mph and was happening before these other issues. Any ideas? Thanks! | ||
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57chizler![]() |
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Expert Posts: 3801 ![]() ![]() ![]() ![]() ![]() ![]() Location: NorCal | The late shifts when cold are probably related to the fluid thickness when cold, causing higher fluid pressure. The problems when warmed up are also fluid thickness related, as the fluid warms up it becomes thinner and will leak from seals that are questionable. The 3rd gear clutch has rubber seals that shrink and harden with age. An additive like Trans-X will help the seals and is a cheap alternative to removal/overhaul. Adjusting the bands is always a good idea and might help the 2nd gear shift. | ||
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Shep![]() |
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Expert Posts: 3431 ![]() ![]() ![]() ![]() ![]() ![]() ![]() Location: Chestertown, NY ( near Lake George) | Good info 57chizler, gotta say failure to move in drive hot says big pressure loss in the forward clutch pak, in low the pressure is at max, that may help , but not fix it of course. | ||
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Myke![]() |
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Elite Veteran Posts: 1110 ![]() ![]() Location: Tulare Ca | 57chizler - 2022-12-26 11:26 AM The late shifts when cold are probably related to the fluid thickness when cold, causing higher fluid pressure. The problems when warmed up are also fluid thickness related, as the fluid warms up it becomes thinner and will leak from seals that are questionable. The 3rd gear clutch has rubber seals that shrink and harden with age. An additive like Trans-X will help the seals and is a cheap alternative to removal/overhaul. Adjusting the bands is always a good idea and might help the 2nd gear shift. So then what would be the best bet other than adjusting the bands? Ive considered draining the trans and filling it back up with Type F and ill certainly try some of that Trans X if it might help. | ||
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Shep![]() |
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Expert Posts: 3431 ![]() ![]() ![]() ![]() ![]() ![]() ![]() Location: Chestertown, NY ( near Lake George) | The bands have no effect on 1st gear, only second and reverse. Slippage in drive break away is internal. | ||
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Mr. Bob![]() |
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Regular Posts: 70 ![]() ![]() Location: Ferndale, WA 98248 | As 57chizler suggested, try a bottle or two to Trans X. It softens the old rubber seals in your trans, and works wonders. It cured all the shifting / no engagement issues I was having with a 57 Dodge TF. | ||
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Powerflite![]() |
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Expert 5K+ Posts: 9849 ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Location: So. Cal | Yep, and if it doesn't work, it's rebuild time. Sometimes it better to bite the bullet and just get it done. | ||
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Myke![]() |
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Elite Veteran Posts: 1110 ![]() ![]() Location: Tulare Ca | Powerflite - 2022-12-31 3:05 PM Yep, and if it doesn't work, it's rebuild time. Sometimes it better to bite the bullet and just get it done. HOw difficult is it to rebuild one of these torqueflites? Ive rebuilt plenty of engines before but never done an Automatic Trans | ||
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Shep![]() |
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Expert Posts: 3431 ![]() ![]() ![]() ![]() ![]() ![]() ![]() Location: Chestertown, NY ( near Lake George) | You will need the shop manual and some of the special tools. This is not really a task for a first timer, not saying you aren't capable, but this unit is not good trans to "learn" on. Edited by Shep 2023-01-01 8:02 PM | ||
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wizard![]() |
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Board Moderator & Exner Expert 10K+ Posts: 13065 ![]() ![]() ![]() ![]() ![]() ![]() Location: Southern Sweden - Sturkö island | The work is not really difficult, as Shep informs, you'll need a shop manual. The most needed tool is the fixature for the sprag clutch - in the old days, I used nails on a wooden plank, works good enough. Since then I made all the needed tools. Respect the given tolerances and inspect all parts for wear, especially the front clutch and the valve body. You could fire away questions here, there are experienced guys here. | ||
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