Transmission

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appetite
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Re: Transmission

Post by appetite » Thu Jul 13, 2017 4:29 pm

Latest post of the previous page:

Robbie asked:

"Do the shifting issues persist when the engine is off?"

So the answer is... sometimes. Very frustrating. Does that rule something out? With the engine off, see below:





Robbie said:

"Also check the grub screw on the front shift rod, just before the shift rod assembly goes into the chassis tunnel."

Grub screw is tight. But there's an enormous glob of beige grease (?) between the boot and the heater tube. I was aghast. See:
IMG_2300.JPG
Crazy, right? I'm going to clean out all that grease. But I don't think that's the culprit. It didn't impede shifting on the previous transmission.

I don't think it is the shifter coupling. It doesn't appear to be faulty based on Robbie's example.

sgkent and hambone: I'm going to check out the stop plate next. What should I be looking for?

Thanks,

James
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Amskeptic
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Re: Transmission

Post by Amskeptic » Thu Jul 13, 2017 6:28 pm

appetite wrote:
Thu Jul 13, 2017 4:29 pm
I'm going to check out the stop plate next. What should I be looking for?



Shift into 2nd gear.
Loosen the two 13mm bolts that hold the shifter to the floor. Loosen only a turn each.

Look CLOSELY at the stop plate ear sticking out of the middle of the black shift housing on the right side of the assembly, i.e. passenger side.

You have been having a difficult time getting into 1st/2nd, so we are going to open up the "gate" just a tad. When we adjusted the stop plate, we moved the ear on the right side of the stop plate towards the driver's door to make sure that you could never accidentally engage reverse from 3rd gear.

With loose bolts as per above, move/rap the gearshift-that-is-in-2nd gear towards the drivers door just a bit. You WILL SEE the stop plate move sideways towards the passenger door hopefully no more than a mm.
Test for gears after you snug the 13mm bolts.

Pleeeeze report back.
Your Appetite Commemorative Three Arm 1600 Pressure Plate says "hi, I have 8,184 additional miles and am loving the rural west."
Colin
BobD - 1978 Bus . . . . . . . . . . .111,130 miles
Chloe - 1970 bus . . . . . . . . . . . 206,787 miles
Naranja - 1977 Westfalia . . . . . 84,400 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 72,113 miles

appetite
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Re: Transmission

Post by appetite » Thu Jul 13, 2017 7:42 pm

Thanks Colin. I will try that this weekend.

You mentioned: "When we adjusted the stop plate, we moved the ear on the right side of the stop plate towards the driver's door to make sure that you could never accidentally engage reverse from 3rd gear."

I don't remember doing this procedure when we installed the transmission. Did we?

Tell the pressure plate to have a good trip around the country.

appetite
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Re: Transmission

Post by appetite » Tue Jul 18, 2017 10:03 am

OK, Robbie, Hambone and sgkent's advice, with Colin's procedure has yielded some positive results.

I can get the bus into 2nd without a problem, even on the downshift. The issue with 1st slipping into 3rd is eliminated. Thee is still some difficulty getting into 1st from a hard stop. I'm going to feel it out for a few days and if it persists, I'll attempt the same procedure, only this time, moving the gearshift in 1st gear towards the drivers door just a bit.

Should I put some grease down into the shifter now that it is open? DuraBlend?

Thanks,

James

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Re: Transmission

Post by Amskeptic » Sat Jul 22, 2017 10:05 am

appetite wrote:
Tue Jul 18, 2017 10:03 am
OK, Robbie, Hambone and sgkent's advice, with Colin's procedure has yielded some positive results.

I can get the bus into 2nd without a problem, even on the downshift. The issue with 1st slipping into 3rd is eliminated. Thee is still some difficulty getting into 1st from a hard stop. I'm going to feel it out for a few days and if it persists, I'll attempt the same procedure, only this time, moving the gearshift in 1st gear towards the drivers door just a bit.

Should I put some grease down into the shifter now that it is open? DuraBlend?

Thanks,

James

Remember too, that a fresh transmission is happy to block your shifts when you get too harried at the green light.
Colin
BobD - 1978 Bus . . . . . . . . . . .111,130 miles
Chloe - 1970 bus . . . . . . . . . . . 206,787 miles
Naranja - 1977 Westfalia . . . . . 84,400 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 72,113 miles

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hambone
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Re: Transmission

Post by hambone » Sun Jul 23, 2017 6:25 pm

That's usually when mine gets fussy. Still needs adjusting though, I have been preoccupied lately with love and heartbreak.
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sgkent
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Re: Transmission

Post by sgkent » Sun Jul 23, 2017 6:50 pm

in a rebuilt trans, 1st seems to be the one that is "notchy." If you have trouble finding the gear that is an adjustment. But, if you find the gear but have trouble getting it to engage, that is usually the hub and syncro. My 091 when I rebuilt it did the same but about 1000 miles later 1st is now almost as smooth as the other gears. The professional trans builders told me that is pretty normal on these. One thing you can do that may help when it hangs is this - Come to a complete stop. Put it in neutral. Let out the clutch. Push the clutch in and now try to engage 1st. That spins the gear and gives the synchro and hub a chance to align.
Thank You -

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hambone
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Re: Transmission

Post by hambone » Mon Jul 24, 2017 5:02 pm

Thanks I'll try that.
http://greencascadia.blogspot.com
http://pdxvolksfolks.blogspot.com
it balances on your head just like a mattress balances on a bottle of wine
your brand new leopard skin pillbox hat

appetite
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Re: Transmission

Post by appetite » Mon Jun 25, 2018 3:14 pm

OK, so revisiting this thread from a year ago re: shifting issues. They persist.

To recap:

Newly rebuild transmission. Less than 200 miles. Difficulty getting into 1st and 2nd, with the engine both running and not running. Sometimes, the shift is two finger smooth. Other times it is impossible to get into gear. Sometimes, it will go into gear only after moving the shifter through 4th and 3rd.

I will check the shift coupler again. I will try the shift plate procedure again.

Are there other elements I can explore? Should i adjust the clutch?

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Re: Transmission

Post by Amskeptic » Mon Jun 25, 2018 10:55 pm

appetite wrote:
Mon Jun 25, 2018 3:14 pm
OK, so revisiting this thread from a year ago re: shifting issues. They persist.

To recap:

Newly rebuild transmission. Less than 200 miles. Difficulty getting into 1st and 2nd, with the engine both running and not running. Sometimes, the shift is two finger smooth. Other times it is impossible to get into gear. Sometimes, it will go into gear only after moving the shifter through 4th and 3rd.

I will check the shift coupler again. I will try the shift plate procedure again.

Are there other elements I can explore? Should i adjust the clutch?

If there is no change between engine off/engine on, then we can rule out the clutch.
Drive it. That is the cure. Less than 200 miles? Drive it. It is feeling "notchy" until you knock off the edges.
Colin
BobD - 1978 Bus . . . . . . . . . . .111,130 miles
Chloe - 1970 bus . . . . . . . . . . . 206,787 miles
Naranja - 1977 Westfalia . . . . . 84,400 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 72,113 miles

appetite
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Re: Transmission

Post by appetite » Tue Jun 26, 2018 6:05 am

That's the best cure I've ever heard!

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