Johnson F5-B raw water pump leaking...

[V1701]

Hi all,

I have a slight leak from behind the impeller housing on my engine's raw water pump (where there's a gap where you can see the crankshaft spinning), so looks like it's the bearing/seal between the impeller housing and crankshaft that needs replacing. Can anyone point me to the correct service/repair kit please, it's a Johnson F5-B (10-24230-5). Parts are interchangeable with 10-24230-1, 2, 3 & 4. Found this one that looks right, can anyone confirm or advise please? I've removed the impeller, nothing looks obviously amiss. Pics below...

Thanks,
David.

 

[trevorr]

According to my information, the Lip seal for that pump has a part number 05-29-515.
These are available individually or as part of a service kit with part number 09-45808.

Trev

 

[V1701]

According to my information, the Lip seal for that pump has a part number 05-29-515.
These are available individually or as part of a service kit with part number 09-45808.

Trev

Thanks Trev, any idea where in UK I can buy either the kit or lip seal, the one I linked to I don't think has the lip seal included. This one I think does - would it be the part between the O ring & gasket in the image?

 

[Poignard]

I buy Johnson parts, and once a complete pump, from ASAP Ltd

 

[ChromeDome]

Drawing (larger, zoomable) attached for you.

 

[Poey50]

I refurbished our Johnson pump FSB-9 as follows:

2 x SKF 6202 - 2RSH bearings

Double lipped seal with stainless spring 16 x 28 x 7 (Viton). I got this from Amazon, of all places.

I refurbished the shaft with a Speedi-sleeve although I don't have the number for that.

These parts are fairly widely available at no great cost. (Make sure you get a stainless spring for the seal.) There's a video showing how to refurbish. You have to get a bit creative to find suitable drifts and presses and I think I used sockets. It wasn't too difficult.

 

[V1701]

Thanks all for the useful tips and info,

ASAP price £24 for lip seal, full kit inc. lip seal, 2 x bearings, 4 x cover screws, O ring, gasket & impeller inc. postage (from Germany) for £43, no contest. I've also found a video of somebody doing the same pump on Youtube...