2015 at the Hammond Barn

[Bob Carriere]

OK Time for a break....maybe even a beer........

Will try again later when my nerves are less frazzelled.....


Let try again a picture of the tranny with the cover removed showing the grimmy but complete gear cluster.

...needed resizing.....arghhh!!
So far so good....not so good the limit of 5 pictures still applies no matter where they are inserted or they all become invalid.

Next the whole top shaft has to be removed using a 9 in, brass drift tap the front of the shaft where the input gear came out and the rear bearing should come off the rear of the tranny..... the whole gears assembly will slide off the shaft and can be lifted out of the tranny case.

IMG_0233resozed.jpg

IMG_0235crop.jpg



Next we need to remove the reverse gear to access the countershaft.


The hardest part is working up the nerve to hammer out the countershaft.

Again with a sturdy brass drift pin you need to hammer out towards the front of the case the whole assembly taking care to hit on the centre of the shaft and not on the bearing.

Here is the complete counter shaft.


You can see the counter shaft OD measurements of 43.99 calls for a bearing at 44.0mm showing a bit of wear or accuracy of the caliper. The overall OD size is 72mm for the 1207 bearing.

Hyatt no longer exists as a brand but sourced NTN 207 which SHOULD fit.... will know later this week when the new bearing come in.

The problem child is the front bearing. Now replaced by NTN #NJ206. Now this bearing comes with a center race which is removed by hand and should result in a perfect fit on the front of the shaft.




The outside OD is 62MM, which is correct, the inside has to be measured from the OD of the insert which read as per the photo.

When you measure the OD of the shaft .. calls for 38mm new.



and the OD of the insert.....





you are short approx 0.45 mm.....whcih results in a very loose bearing.

I am now awaiting a NTN #NJ 206E which mayve a getter fit will know later this week.

Meanwhile who can contribute to solving this problem......

Is there a better fitting bearing that you may have used in your past tranny rebuild....????

It is nice to be able to insert pictures at the right place in the text BUT it takes a lot of twealing around from croppng to resizing to adding text than managing the individual attachments AND taking care to DELETE the ones previously inserted.....

...but I think I did it. What else can you do on a cold day!!!

Cheers

PS.... what happened this time......??? I am going back to the stone tablets....