Radiator Hose used as Stuffing Box Hose

[chris95040]

Originally Posted by Scout 30

One trick to getting the coupling off the shaft is to break the coupling apart & then place a socket slightly smaller than the shaft diameter against the end of the shaft. Re-attach the coupling to the transmission & as you tighten it down the socket pushes the shaft out the back of the coupling.

Some folks claim that this can damage your engine-side coupling, particularly if your transmission outlet coupling is just separate ears for each bolt (hurth). Getting out the feeler gauges for alignment is pretty pointless if you've already pulled your coupling out of normal.

I just made a basic puller out of a thick square plate of steel, holes cut to match the coupling and a center hole tapped for a 1/2" fine thread bolt to drive the shaft out. Worked great despite very little room to work with between couplings.

[malbert73]

How do you all reinsert shaft into coupling if fit is tight? Assume usual low clearance. Obviously can't use transmission coupling to brave against the force...


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[Scout 30]

Good point Chris. On my Volvo it would be difficult to damage the transmission side of the coupling but with a less robust design this could be possible. Your puller idea sounds like a good one. Getting them on can be hard. They need to be a tight fit but if they're too tight it won't work. If you tap it on do not hit the coupling with a metal hammer!

[Stu Jackson]

A New Prop Shaft Photo Gallery by Compass Marine How To at pbase.com

[Scout 30]

Thanks to Stu for reminding me about the Compass Marine website. I previously use the info on servicing a tapered cone seacock & it was very helpful.

[Boatyarddog]

Place plywood between the flanges, it'll take the brunt of the strike and not damage bearings or coupler faces.
Use brass drift to tap the shaft end.


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