Is this an Oberdorfer pump

[britinusa]

Working on my 'spares' list.

Is this an Oberdorfer pump ??

[KWKloeber]

Working on my 'spares' list.

Is this an Oberdorfer pump ??

Yes, it looks like a 3/8" (not 1/2") inlet/outlet.  A 202M-15 (cover has a gasket.) 
If the cover has an O-ring, then N202M-15

Ken

[Ron Hill]

Paul : Yes, it is an Oberdoffer.

[britinusa]

Any servicing tips?

I'll be on the boat in the morning, doing a 2nd oil change. I could take a closer look at the pump at that time.

Paul

[KWKloeber]

Any servicing tips?

I'll be on the boat in the morning, doing a 2nd oil change. I could take a closer look at the pump at that time.

Paul

"Inspecting" more than "servicing." 
Any leaks from the weep hole indicates a seal is leaking and needs replacing (possibly shaft also if worn/scored.)
Pull and inspect impeller, but then you might ruin gasket if not the o-ring style cover.  You can make a paper gasket by tracing cover/body.

I recommend that customers carry the following:

1) A NEW impeller (not an old one) for an emergency and for the next replacement.   
2) Replace the impeller every 2 years (depending of course on how much you motor.)  For under $20 a year it's great insurance. 
3) Carry the old one (in addition to a new one) for an emergency, emergency replacement.
4) A few paper cover gaskets (or one o-ring if the new style)
5) A spare engine mount gasket (I prefer the Kubota gasket p/n 15296-88130 over the Westerbeke gasket.)
6) If the mount happens to be bolts instead of studs/nuts, recommend installing stainless studs and stainless/nylock flange nuts (kit.)

It you ever need to change the pump, recommend the M-16 (1/2" inlet/outlet.)

Dumping the Universal/Westerbeke OEM hose barb elbows (goes for Sherwood pump also) if in salt water - they are cast brass, not bronze!!!  I use generic marleon fittings, because all the bronze hose barbs available are a POS.

Ken

[britinusa]

Thanks Ken.

[Stu Jackson]

Yes, it is.  Thank goodness!!!

Here's how to do what Ken suggests:

Oberdorfer Pump Rebuild 101 - http://c34.org/bbs/index.php/topic,6766.0.html [Link added to main page of C34 Tech wiki]