Hey does anyone have info on the prop bolt on a BT50EI? I've got one that is loose in the threads, the tap diameter was too big when they tapped it. I need to re-drill and tap for a 3/8 - 24 bolt.
I was wondering if anyone has done this. If there are any issues with doing it. I'll be turning it on a lathe so centering isn't an issue and it should have plenty of meat left (hub diameter = .790') The bolt that is in there right now looks to be .310". I'm sure it's metric, at least it's not measuring with any of my SAE thread gauges.
The tap diameter for the 3/8 is .328 and it should just barely clean out the threads of the OEM bolt which is PN FJIG8360.
Does anyone have any other tricks for this?
And does anyone ever use anti-seize on their prop bolts?
The reason I'm asking is because the engine is turning the bolt about another 90 degrees after I tighten it and start the engine. I don't want to put any more torque than I'm putting on it with the threads the way they are. I'm tightening to the point where I can feel the aluminum wanting to bite (as in just about to gall)
I know I have one issue with the slipperiness of the hub flange, I roughened it up but it's still spinning. This is being used with a spinner BTW.
Thanks,
Darrell