Water pump kit no longer available? 1980 4hp Canadian.

[AEROCOOK]

I picked up a circa 1980 Mercury 4hp (Canadian edition serial # 7154888) as part of a package deal and I need a little help finding a water pump assembly.
The housing is melted so I will need the complete pump assembly, not just the impeller.
All of the online catalogs seem to be for US models and assuming the Canadian model parts are the same, it looks as though most of the pump components are no longer available!
What are my options? does someone make an aftermarket pump for my motor?
Thanks.

 

[carholme]

Re: Water pump kit no longer available? 1980 4hp Canadian.

Here is a link to the parts list for s/n 7143688 and above:

4 H.P./4.5 H.P. - Mercury, Mercruiser, Force, etc. Parts Lookup

See Waterpump kit at lower end of page or

here:

Water Pump Kit for Mercury, Mariner 46-70941A3 - Sierra 18-3446 - iboats

Gerry

 

[AEROCOOK]

Re: Water pump kit no longer available? 1980 4hp Canadian.

Thanks for the reply Gerry.
I reviewed the part schematic and the image of the Sierra pump and they don't look anything like the pump assembly that is in my motor.
Most notably, my pump doesn't have that L shaped hose coming out the side, item # 23 in the schematic.
I don't think it matters but my motor is a long shaft. I'll post some pictures of my pump tonight, hopefully that will help identify what I have.
Thanks again for your help,

Steve.

 

[carholme]

Re: Water pump kit no longer available? 1980 4hp Canadian.

Just checked your s/n and it appears to be a 1979 as seen here:

4 1979 GNAT M 9208837 - 9213880 7127139 1980 starts with a higher s/n than yours.

MERCURY OUTBOARD MODEL YEAR GUIDE 2.2 - 6 HP -- Mastertech Marine

Therefore this parts list would apply.

MERC 4 - Mercury, Mercruiser, Force, etc. Parts Lookup

It still shows the Iboats kit for yours. Have you looked at the picture here?

Water Pump Kit for Mercury, Mariner 46-70941A3 - Sierra 18-3446 - iboats

Gerry

 

[AEROCOOK]

Re: Water pump kit no longer available? 1980 4hp Canadian.

Thanks Gerry.
I suspect you are correct in that the pump in the 1979 parts schematic looks more like the one I have but I'm a little confused about the model year designation. My serial number is 7154888 and the 1980 / 1981 models begin with serial number 7146488. Doesn't that make mine a 1980 / 1981? Also, to add further confusion, the image for the Sierra kit that replaces the 1979 OE pump shows that horizontal port that the L shaped hose goes into?? Perhaps it's just a generic image? I guess at the end of the day, it really doesn't matter as long as I can find the correct parts.

 

[AEROCOOK]

Re: Water pump kit no longer available? 1980 4hp Canadian.

I think I found what I need on ebay, I just have to compare the picture in the ad to my pump to be 100% sure.

 

[carholme]

Re: Water pump kit no longer available? 1980 4hp Canadian.

Sorry about the s/n confusion, I was looking at the one in post #2.

Gerry

 

[AEROCOOK]

Re: Water pump kit no longer available? 1980 4hp Canadian.

Sorry about the s/n confusion, I was looking at the one in post #2.

Gerry

No worries, I appreciate your help.