Re: Slide Hammer Tips??? Lower Unit Off Drive Shaft Stuck in Crank Shaft
The only time I've seen it done is to carefully drill a hole in the end of the driveshaft and tap it for a bolt that will fit in the puller. Tricky to do on an upside down motor.....
Congrats on getting the motor fixed.
Just to follow up on this topic, tx191 is correct. A slide hammer is VERY effective and will not ruin the crank or bearings(unless they are already shot). Solid cobalt bits in 3 steps tap to 1/4-20, need about 5 turns with a grade 8 bolt.
If it doesn't come off with 4 or 5 pulls, then also hammer a few INTO crank. Your just trying break/shock the bond.
The slide hammer rod can also often be welded to the drive shaft(non seal area, then ground), but requires special welding techniques and materials.
ATF/Acetone is one of the few penetrating oils that sometimes works in a salt water marine environment...but Ketones don't get along with some seal materials. Probably, the saving grace here, is acetone tends to flash off fairly quickly.
