Raw Water Pump Seal

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   Hey Guys,

Do any of you have any experience replacing the rear seal on a Johnson Raw Water Pump?

Engine is an Indmar Marinization of a Ford 315W.  The pump is crank driven, and leaking pretty bad from the rear.  I'm ordering a seal from SkiDim tomorrow.

I'm looking for an overview of the process before I begin (so I don't screw anything up).  I can't find any info online so I thought I'd ask here.

Here's a few picks of the pump.

Thanks.

Joe

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joed Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: May-04-2006 Location: United States Status: Offline Points: 144	Post Options Post Reply Quote joed Report Post Thanks(0) Quote Reply Topic: Raw Water Pump Seal Posted: October-21-2007 at 1:37pm
	Hey Guys, Do any of you have any experience replacing the rear seal on a Johnson Raw Water Pump? Engine is an Indmar Marinization of a Ford 315W. The pump is crank driven, and leaking pretty bad from the rear. I'm ordering a seal from SkiDim tomorrow. I'm looking for an overview of the process before I begin (so I don't screw anything up). I can't find any info online so I thought I'd ask here. Here's a few picks of the pump. Thanks. Joe
	Joe D. 1986 Ski Eliminator

8122pbrainard Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045	Post Options Post Reply Quote 8122pbrainard Report Post Thanks(0) Quote Reply Posted: October-21-2007 at 6:35pm
	Joe, It would be the same as any seal. If you haven't done one before don't worry as it is simple. The old one is bad so you can just pry it out. Clean up the surface on the housing where the OD of the seal mates. I like to put some gasket compound on the OD such as Permatex or aviation gasket. Press the new seal in making sure it goes in straight. You don't need a press as a vice or even a block of wood and a hammer will work. Be fore putting the pump shaft back in, check the surface where it mates the seal. It should be smooth and no groves.
	54 Atom 77 Tique 64 X55 Dunphy Keep it original, Pete <

joed Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: May-04-2006 Location: United States Status: Offline Points: 144	Post Options Post Reply Quote joed Report Post Thanks(0) Quote Reply Posted: October-21-2007 at 7:05pm
	Thanks Pete, And no... I've never really replaced a seal like that. I figured it would be self evident when I dug into it, but it never hurts to ask. Thanks again. Joe
	Joe D. 1986 Ski Eliminator

Raw Water Pump Seal

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