How-To: Rebuilding a Transmission
I figured since I was going to be doing it anyway and I haven't really been able to find anything about rebuilding a tranny I figured I would write a How-to on tranny rebuilding.
Here it goes:
You don't have to, but I found it easier to remove the clutch fork. Start by taking out this bolt.
Pull out the Clutch Lever.
When you start to pull out the Clutch Lever the Throw-out bearing and the fork assembly comes off.
You can replace this seal if it is bad.
Now we are going to tear into the transmission. Start by removing the Reverse Idler Gear Shaft bolt.
Remove the Spedometer Gear.
Next remove all of the case bolts and the two plugs pictured below.
Pry the metal tab up in the picture below.
Using Snap-Ring Plyers spread the Snap-Ring Pictured. The Intermediate Shaft should drop a bit if not start to separate the two halves of the case while spreading the ring.
When you get the case separated it should look like this.
Slide the pin pictured to start taking the shift linkage out.
Remove the shift linkage bolts to remove the rest of the shift linkage.
Remove these bolts to remove the Detent Ball/Spring and Shift Lever.
Remove these bolts to remove the Reverse Shifting Fork.
Remove this pin to remove the Reverse Idler Gear.
Slide this pin out to remove the 1st/2nd/Reverse Shift Fork.
Lift up on this tab to remove the rest of the shift forks.
The Intermediate Shaft and the Input Shaft will slide out next and have to be taken out together.
Next the Differential can come out and again it just slides out.
Intermediate Shaft on the left and the Input Shaft on the right.
If you were going to replace the Final Drive gear or if you are installing a new Differential you would remove these bolts to take off the Final Drive Gear. You would also need a press for the bearings and the Speedometer Ring Gear.
I'm going to start with the Input Shaft first.
Remove the bearing at the end.
Next Remove the 5th Gear Syncro Hub.
I found it easier to mark these when I took them out because they only line up one way.
Next take off the Input shaft 5th Gear and Syncro.
Between the Input Shaft 5th and 4th gears there are two bearings and a sleeve to separate the two.
Next comes the Input Shaft 4th gear and Syncro.
Finally the 3rd/4th gear Syncro Hub and the Inputshaft 3rd Gear, Synchro and bearing.
You are now left with a bare Input Shaft.
Make sure when you reassemble your transmission that the tabs on the Synchros fits into the grooves of the Synchro Hub as pictured.
Next is the Intermediate Shaft. First you will need to take a Flat Tip Screw Driver and bend out the indent in the nut at the end of the shaft. Then take the nut off.
Next take off the bearing.
Next comes 5th gear.
Followed by 4th gear.
After 4th is 3rd.
Now 2nd along with its Syncro bearing and sleeve.
Next is the 1st/2nd Syncro Hub/Reverse Gear.
Lastly is 1st gear and its Syncro.
If you notice the bearing for 1st gear is a split bearing. When reassembling, the two halves are put on the shaft and then 1st is slid over the bearing halves.
We are now left with a bare Intemediate Shaft.
Now for the speedometer assembly. Take out the two bolts on the bottom.
Next pull out the inner pump gear.
Take out the little pin on the Speedometer shaft.
Next pull out the outer pump gear.
Next comes this sleeve.
Pull out the Speedometer shaft.
Finally we are done!
I hope this will help anyone looking to rebuild their transmissions to replace Gears, Syncros, Diferentials or whatever other reason.
Lastly this is not from a factory manual. I do not have clearance specs so don't ask. Also by using this you understand that you do so at your own risk and I am not responsible for any dammage to your transmission.
I figured since I was going to be doing it anyway and I haven't really been able to find anything about rebuilding a tranny I figured I would write a How-to on tranny rebuilding.
Here it goes:
You don't have to, but I found it easier to remove the clutch fork. Start by taking out this bolt.
Pull out the Clutch Lever.
When you start to pull out the Clutch Lever the Throw-out bearing and the fork assembly comes off.
You can replace this seal if it is bad.
Now we are going to tear into the transmission. Start by removing the Reverse Idler Gear Shaft bolt.
Remove the Spedometer Gear.
Next remove all of the case bolts and the two plugs pictured below.
Pry the metal tab up in the picture below.
Using Snap-Ring Plyers spread the Snap-Ring Pictured. The Intermediate Shaft should drop a bit if not start to separate the two halves of the case while spreading the ring.
When you get the case separated it should look like this.
Slide the pin pictured to start taking the shift linkage out.
Remove the shift linkage bolts to remove the rest of the shift linkage.
Remove these bolts to remove the Detent Ball/Spring and Shift Lever.
Remove these bolts to remove the Reverse Shifting Fork.
Remove this pin to remove the Reverse Idler Gear.
Slide this pin out to remove the 1st/2nd/Reverse Shift Fork.
Lift up on this tab to remove the rest of the shift forks.
The Intermediate Shaft and the Input Shaft will slide out next and have to be taken out together.
Next the Differential can come out and again it just slides out.
Intermediate Shaft on the left and the Input Shaft on the right.
If you were going to replace the Final Drive gear or if you are installing a new Differential you would remove these bolts to take off the Final Drive Gear. You would also need a press for the bearings and the Speedometer Ring Gear.
I'm going to start with the Input Shaft first.
Remove the bearing at the end.
Next Remove the 5th Gear Syncro Hub.
I found it easier to mark these when I took them out because they only line up one way.
Next take off the Input shaft 5th Gear and Syncro.
Between the Input Shaft 5th and 4th gears there are two bearings and a sleeve to separate the two.
Next comes the Input Shaft 4th gear and Syncro.
Finally the 3rd/4th gear Syncro Hub and the Inputshaft 3rd Gear, Synchro and bearing.
You are now left with a bare Input Shaft.
Make sure when you reassemble your transmission that the tabs on the Synchros fits into the grooves of the Synchro Hub as pictured.
Next is the Intermediate Shaft. First you will need to take a Flat Tip Screw Driver and bend out the indent in the nut at the end of the shaft. Then take the nut off.
Next take off the bearing.
Next comes 5th gear.
Followed by 4th gear.
After 4th is 3rd.
Now 2nd along with its Syncro bearing and sleeve.
Next is the 1st/2nd Syncro Hub/Reverse Gear.
Lastly is 1st gear and its Syncro.
If you notice the bearing for 1st gear is a split bearing. When reassembling, the two halves are put on the shaft and then 1st is slid over the bearing halves.
We are now left with a bare Intemediate Shaft.
Now for the speedometer assembly. Take out the two bolts on the bottom.
Next pull out the inner pump gear.
Take out the little pin on the Speedometer shaft.
Next pull out the outer pump gear.
Next comes this sleeve.
Pull out the Speedometer shaft.
Finally we are done!
I hope this will help anyone looking to rebuild their transmissions to replace Gears, Syncros, Diferentials or whatever other reason.
Lastly this is not from a factory manual. I do not have clearance specs so don't ask. Also by using this you understand that you do so at your own risk and I am not responsible for any dammage to your transmission.
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