Transmission

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asiab3
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Re: Transmission

Post by asiab3 » Sat Aug 25, 2018 1:50 pm

Latest post of the previous page:

I am continuously aghast with wonder at the amount of service our cars will provide us while missing critical parts.

YES there should be a pin inserted into the front shift bushing!



I typically "massage" the parts into slightly less slop than this. But uhhhh, yeah you should probably have a complete and functioning chassis before you go adjusting the stop plate. :pirate:

If I remember correctly, you can drill the remnants of the old pin out, grind off all but the last few threads of an M8 or M10 bolt, and use a jam nut to hold the bolt in place and shift for the next 100 years without worry. Welding in a hardened steel pin would be ideal, but above my skill level.

Unreal, how you even drove that in the first place…
Robbie
1969 bus, "Buddy."
100k miles with me.
279k miles on Earth.

appetite
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Re: Transmission

Post by appetite » Sat Aug 25, 2018 2:47 pm

Thanks Robbie.

I have no idea when the pin fell off. Maybe as I was getting onto the on ramp; perhaps it was loose and fragile in the preceding months.

As for the fix: I suppose I would also have to grind off the head of the bolt as well.

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Amskeptic
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Re: Transmission

Post by Amskeptic » Sat Aug 25, 2018 6:03 pm

asiab3 wrote:
Sat Aug 25, 2018 1:50 pm
I am continuously aghast with wonder at the amount of service our cars will provide us while missing critical parts.

YES there should be a pin inserted into the front shift bushing!

I typically "massage" the parts into slightly less slop than this. But uhhhh, yeah you should probably have a complete and functioning chassis before you go adjusting the stop plate. :pirate:

If I remember correctly, you can drill the remnants of the old pin out, grind off all but the last few threads of an M8 or M10 bolt, and use a jam nut to hold the bolt in place and shift for the next 100 years without worry. Welding in a hardened steel pin would be ideal, but above my skill level.

Unreal, how you even drove that in the first place…
Robbie

Holey Katz. How on Earth? James, follow the above Air Schooled instructions . . .
Colin
BobD - 1978 Bus . . . . . . . . . . .111,130 miles
Chloe - 1970 bus . . . . . . . . . . . 206,787 miles
Naranja - 1977 Westfalia . . . . . 93,996 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 Aug 28, 2018 2:08 pm

Ok, apparently, I'm not the only person with this problem:

https://www.thesamba.com/vw/forum/viewt ... sc&start=0

This bus owner has come up with a pretty slick solution. I don't know how he fabricated the bolt, but maybe I can conjure something comparable.

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asiab3
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Re: Transmission

Post by asiab3 » Tue Aug 28, 2018 8:34 pm

appetite wrote:
Tue Aug 28, 2018 2:08 pm
Ok, apparently, I'm not the only person with this problem:

https://www.thesamba.com/vw/forum/viewt ... sc&start=0

This bus owner has come up with a pretty slick solution. I don't know how he fabricated the bolt, but maybe I can conjure something comparable.
Their solution looks like a custom machined part (lifted from thread:)

Image


I suspect you could use an M10 bolt with the head cut and rounded off, and two nuts instead of the machined-in collar.

Robbie
1969 bus, "Buddy."
100k miles with me.
279k miles on Earth.

appetite
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Re: Transmission

Post by appetite » Wed Aug 29, 2018 5:24 am

Robbie,

Yes, it looks very skillfully fabricated.

Questions, if anyone knows:

How far forward does the pipe bowl ride on the pin when going into 2nd or 4th? Will a nut on the back of the welded bracket interfere with that movement?

James

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Amskeptic
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Re: Transmission

Post by Amskeptic » Thu Aug 30, 2018 5:00 pm

appetite wrote:
Wed Aug 29, 2018 5:24 am

How far forward does the pipe bowl ride on the pin when going into 2nd or 4th? Will a nut on the back of the welded bracket interfere with that movement?
James
You have about 4mm in 2nd and 4th. The locknut can be ground down by half if interference occurs.
Colin
BobD - 1978 Bus . . . . . . . . . . .111,130 miles
Chloe - 1970 bus . . . . . . . . . . . 206,787 miles
Naranja - 1977 Westfalia . . . . . 93,996 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 72,113 miles

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asiab3
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Re: Transmission

Post by asiab3 » Fri Aug 31, 2018 4:37 pm

A jam nut (think valve adjuster lock nut) should be skinny enough.

Image
1969 bus, "Buddy."
100k miles with me.
279k miles on Earth.

appetite
Getting Hooked!
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Re: Transmission

Post by appetite » Mon Sep 10, 2018 10:16 am

So to follow-up and close this chapter of transmission drama...

The main event of my IAC visit this year was addressing the missing shift rod pin. Here's how it all panned out: M10 bolt, sans head, smooth shaft and 3 nuts to lock it all in place.
IMG_2622.jpg
IMG_2623.jpg
IMG_2624.jpg
The nut on the back of the welded bracket just kisses the bushing at the end of the pipe bowl when going into 2nd or 4th.

So far, so good. Still a little notchy in 1st and 2nd, which is perhaps attributable to the newer tranny. But here's hoping this is a permanent fix.

Thanks for all the good ideas!
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Amskeptic
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Re: Transmission

Post by Amskeptic » Mon Sep 10, 2018 4:13 pm

appetite wrote:
Mon Sep 10, 2018 10:16 am
So to follow-up and close this chapter of transmission drama...

The main event of my IAC visit this year was addressing the missing shift rod pin. Here's how it all panned out: M10 bolt, sans head, smooth shaft and 3 nuts to lock it all in place.


The nut on the back of the welded bracket just kisses the bushing at the end of the pipe bowl when going into 2nd or 4th.

So far, so good. Still a little notchy in 1st and 2nd, which is perhaps attributable to the newer tranny. But here's hoping this is a permanent fix.

Thanks for all the good ideas!

Your phone puts my myopic astigmatized camera to shame. Still shifting well? You may, at any time, check the security of our locknuts.
ColinInStJamesMO
BobD - 1978 Bus . . . . . . . . . . .111,130 miles
Chloe - 1970 bus . . . . . . . . . . . 206,787 miles
Naranja - 1977 Westfalia . . . . . 93,996 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 72,113 miles

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