I have just rebuild my D8K ter and will be fitting it tomorrow. I have never build a CAT unit before and have a few questions.
The converter didn't fail, I had the trans go and though I would do the converter at the same time.
Firstly, the spit cone ball bearing. On assembly after tightening the nut that pushes the tubine in to the bearing inner race, I can still get some movement between the turbine and the housing. I removed and checked it 3 times comming to the conclution it is just bearing clearance. Is this normal to have play, say 1/2 mm. By thje way, all parts going back in (Bearing etrc are new)
The second issue I am having is with the tapered roller bearing. Both the cup and cone are wedged between retainers but there is nothing to pre-load this bearing. The converer once back together has excessive float forward towards the prop shaft (Tran end of the housing), so much the gear that drives the scavange pump rubs the outer housing. Can I assume that when it gets oil, the prssure pushes the turbine set back into the tapered bearing that will pre-load it?
Any help would be appreciated.