Another reverse solenoid question for Spicer 4-speed. - Page 3
 

Another reverse solenoid question for Spicer 4-speed.

Started by lou432, May 28, 2016, 03:24:33 PM

Previous topic - Next topic

busfan

Thx Chessie I'll check those!  Trying to get my buddy to help me tonight, coach is about half an hour away at my sisters..

On my fishbowl 4 speed the tunnel spot you speak of is accessible from the rear top access, where I stare down at the other 3 cyl's. 

I started about making sure the measurements were correct for the clutch from the front, working to the back but wow are those spaces fun to work in! Where the 'firewall' is the clutch shaft steps up and goes just back to the right of the drivers arm.  Anyone know what / how interior part to start disassembling to perform the necessary measurements and adjustments..Looks like it is drivers side of the galley way, but how does this come up?  Hate to tear it up if I do not have to. Thanks, George

chessie4905

The front pivot levers on mine are vertical mounted on a horizontal shaft. The rear ones are horizontal mounted on a vertical shaft.
GMC h8h 649#028 (4905)
Pennsylvania-central

busfan

So thru the top engine access I found the clevis point's that should be aligned,  Although I was looking for needle bearings ;)  on the transmission (I thought thats where the control tower was, geez its the big stick shifting thing up front dummy!) Yes the Clevis points are a little sloppy..Are these things common at fastner stores?  Guessing they probably are.. Well going to try and get them aligned today..

Some materials I dug up.. on fishbowls the clevis center should be 1.78in away from firewall and here is the part I am confused about.."center of clevis pin's must be in line with each other and centered on a line thru the two shaft assemblies..Adjust then tighten lock nuts..(dont think I saw any lock nuts)

So first of all it describes aligning the center of clevis pins which would make me think that the Pass side control rods should be aligned vertically so you could drop a nail thru them... Then I picture no.. they are talking about the horizontal line 1.78in from the bulkhead on a horizontal pane intersecting each side of the bus at 90 degree angles.. Additionally where one of the rods meet the transmission there is very little clearance to the firewall infact It looks like sometimes it does contact the firewall lightly. Hmm..

busfan

So..I am trying to 'reset' my transmission to it's default state, I had just started the process of extracting pins when I noticed my 1962 manual differs from what I am looking at in my 1968..In 1962 the process was to measure the distance to the firewall 1.78" from the center of the Clovis pin hole..As described in Section 'transmission control and maintenance'..

I looks like they changed things up a little as in my 68 s6m one of the rods the 62' manual denotes for gear shifting is used for the clutch(.. So dunno if this throws the 1.78" everything out the window?  

Probably just go 1.78" on the both and see where it get's me even though the rod holes and positions changed in the 6 years.  Included a video link of the clearance in neutral, need about .7 inches.

https://www.youtube.com/watch?v=QCFa1Zjv_dw&feature=youtu.be