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Guest Message by DevFuse

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3AT transmission


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6 replies to this topic

#1 54Bravo



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Posted 28 May 2014 - 11:19 AM

When my transmission is in low, it's in low. When it's in second it'll shift from 1st to 2nd. In drive it's in low. Could it be the kick down switch on the pedal? Because it doesn't have one, the throttle is on the handlebars attached to a Kawasaki front end. Or could it be something internal. This is not in a car it's in a trike. Any help will be appreciated. The radiator is out of an MGB.

#2 MilesFox


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Posted 28 May 2014 - 11:53 AM

If it won't engage into D, inspect the governor shaft. this is a circular cup on the side of the trans with 3 bolts. remove the cover and pull the hsaft out. inspect the gear for 'apple core' condition where the teeth are sheared off. The valve body is on this shaft, operates centrifugally, make sure the oil passages are not blocked.

#3 doughildreth


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Posted 19 December 2014 - 11:47 AM

Did you figure out your Transmission problem? I'm having the same issue?

#4 doughildreth


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Posted 19 December 2014 - 02:46 PM

Pulled my Governor gear out and it is in shot. I have looked and called around and can't locate one. Any suggestions? Anyone have a new or used one they can part with? The following just sold On Ebay but I missed it.

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#5 Brett!


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Posted 19 December 2014 - 08:09 PM

Sorry, I snagged that to fix my DL

#6 moosens


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Posted 20 December 2014 - 12:19 AM

They show up infrequently.
Ask your dealer to check west coast supply. They can and should but often won't.

#7 Datsunrides


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Posted 20 December 2014 - 05:27 AM

IIRC, the 3AT is a Jatco 3N71B variant. If it is, it was used in all automatic Datsun cars from 71' up until the early 80's and in early Mazdas. Since the Datsuns are still sorta common in wreckers, may want to pull one out and see if it's the same?



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