Nissan 5HP NS5B Stuck Prop Thrust Bearing

[M. Golden]

Bought a used 1998 Nissan NS5B that had seen salt water, bought the prop and hardware kit to replace it and I cant get the old thrust bearing out, seems almost welded to the shaft with corrosion. Soaked it with WD-40, etc, no luck. How do I get this out?

 

[pvanv]

Re: Nissan 5HP NS5B Stuck Prop Thrust Bearing

If you are talking about the "Thrust Holder" which sits on the shaft ahead of the prop, you can use a 2- or 3-arm gear puller, but the arms will need to be fairly small. If it isn't super-corroded, you can pry it off, by using a large, flat screwdriver, and alternate the prying in different locations around the thrust holder. In really severe cases, you will be forced to cut (split) the old thrust holder off of the shaft, using a sharp chisel, or a "nut cracker" tool. If you do that, be careful not to damage the prop shaft. If you can pull the prop shaft housing out of the LU (not sure, depends on how much corrosion there is on yours), you can support the prop shaft housing on the jaws of a vise, and drive the prop shaft down and out of the housing, leaving the thrust holder behind. In the future, keep that area well-greased.

 

[Sea Rider]

Re: Nissan 5HP NS5B Stuck Prop Thrust Bearing

Apply a generous amount of brake fluid to troubled area , let soak, re apply, let soak, remove as recommended, sometimes brake fluid does wonders...hope it helps!!

Happy Boating

 

[M. Golden]

Re: Nissan 5HP NS5B Stuck Prop Thrust Bearing

If you are talking about the "Thrust Holder" which sits on the shaft ahead of the prop, you can use a 2- or 3-arm gear puller, but the arms will need to be fairly small. If it isn't super-corroded, you can pry it off, by using a large, flat screwdriver, and alternate the prying in different locations around the thrust holder. In really severe cases, you will be forced to cut (split) the old thrust holder off of the shaft, using a sharp chisel, or a "nut cracker" tool. If you do that, be careful not to damage the prop shaft. If you can pull the prop shaft housing out of the LU (not sure, depends on how much corrosion there is on yours), you can support the prop shaft housing on the jaws of a vise, and drive the prop shaft down and out of the housing, leaving the thrust holder behind. In the future, keep that area well-greased.

Ended up having to take it to the Nissan dealer, that piece was completely welded on by corrosion, there was no prying it off. I do know to grease that whole prop shaft at least once a year as I do on my 115 but the guy that I bought the Nissan from must have missed that class. Thanks for the reply!