I got my transmission drum assembly rebushed and installed it this morning on the flywheel.
Reading the Ford manual again checking for the clearance procedure I noticed it says to set the clearance for the clutch drum .015-.022 thousandth. The 3 washers checked out around .043 each so they were OK.
I have built a few T transmissions in the last 50 plus years but when I come to this part I have to wonder if the clearance is simply attained by 'feel'. That's the way I've always done it anyway.
As the manual says, when the drums start to get tight on the trans shaft bump the shaft with a brass hammer to get a running fit.
Anyone have another method. Just curious.
During a rebuild, I set the clearance before installing the clutches and driving plate, after he flywheel, triple gears and drums are bolted up to the engine. I set a dial indicator on the brake drum and the pointer on the end of the transmission shaft and move the drums back and forth.
John ; I do it nearly the same as Richard.
Thanks for replying guys.
I had thought of setting up a dial indicator to get the .015-.022 spacing but thinking about it and taking into account the tightening up of the drum set screw it made me wonder.
Am I right in thinking that the hole in the transmission shaft determines what the distance will be anyway?
If the hole is not almost perfectly lined up to accept the drum set screw the screw cant be screwed in all the way to secure the drum.
Maybe Ford used the 'bump to fit' method in hoping there was enough play between the set screw and the hole in the transmission shaft.
Am I looking at this wrong? Any other ideas?