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can bad throttle kill a 3spd. Manul trans? |
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1958 rambler super
AMC Addicted Joined: Dec/10/2020 Location: Victoria BC can Status: Offline Points: 1204 |
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Posted: Oct/17/2021 at 11:00am |
Ok, thanks for the reply wittsend!
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wittsend
AMC Nut Joined: Apr/15/2020 Location: California Status: Offline Points: 430 |
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In simple terms the more throttle you use the more pressure is needed to hold the transmission clutch packs and bands from slipping. The reason the pressure is variable is it takes power to supply the pressure. The other is that the shift characteristics are harsh when the pressure is high but the need is low.
The goal is to provide enough pressure to keep the slippage in check but supply a smooth shift and not use excessive pressure that can effect mileage to some extent. Older transmissions like the Rambler's has its characteristics "built in". More modern cars control the transmission pressure and shifting with computers and solenoids as opposed to older cars that have the "built in" characteristics decided be permanent springs in the valve body. The throttle valve is the one of the few variables the older transmissions have to do what computers and solenoids do today. I'll stop here because I've gone beyond simple at this point. Update: I just noticed that you state MANUAL 3 speed. Since the shift point of manual is selected by the driver and their foot on the cutch dictates the abruptness, no I can't see a throttle adjustment burning up a manual transmission. That said, what I stated does apply to Automatic transmissions. They can be burned up if the throttle valve is misadjusted and there is internal slippage.
Edited by wittsend - Oct/14/2021 at 10:54am |
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'63 American Hardtop
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1958 rambler super
AMC Addicted Joined: Dec/10/2020 Location: Victoria BC can Status: Offline Points: 1204 |
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So the answer is no.
Got it! Thanks!
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nickleone
AMC Addicted Joined: Oct/04/2008 Location: westminster co Status: Offline Points: 1446 |
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AUTOMATIC TRANS and throttle rod.
Nick
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nick
401 71 Gremlin pro rally car sold 390 V8 SX/4 pro rally car sold 1962 Classic SW T5 4 wheel disc brakes |
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1958 rambler super
AMC Addicted Joined: Dec/10/2020 Location: Victoria BC can Status: Offline Points: 1204 |
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Ok, I remember reading a thread in which someone was having problems with setting up throttle, and another member replied saying whatever you do don't go driving it or you will need to look for a new trans.
Why would bad throttle position kill a transmission? I've done some research online and heard it's because the trans will jump gears from 2 to 3 ect too fast.. but I still don't get it... Also, would this same concept of danger be a reality for the 3speed manual trans I have? Borg Warner t96.
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