Yanmar Pump Rebuild

[sagablu]

Hello all,

So Johnson water pump">raw water pump from my 3GM30F was leaking quite a bit, so I purchased the rebuild kit from Depco. I called to inquire if the bearings require grease, but the reply I received did not sound 100% certain. They did say no, but is that correct? No grease for the bearings?

If anyone has any great tips to make this rebuild easier, please share.

[four winds]

Modern sealed ball bearings, so no grease can be added.

6200 or 6202 series if memory serves.

[sagablu]

Originally Posted by four winds

Modern sealed ball bearings, so no grease can be added.

6200 or 6202 series if memory serves.

Thank you!

[RaymondR]

Some of these pumps have brass screws which hold the plate onto the pump body. I have had problems with them corroding in and twisting off so now replace the screws with small SS bolts. I use overlong bolts onto which I put a nut and washer and then bottom out the bolts. I then tighten down the nuts. If the bolts corrode into the housing I cut their heads off using a Dremel and leave them in the housing as studs.