Water in lower while hoooked to a hose

[Walter]

Re: Water in lower while hoooked to a hose

If I understand your question correctly...yes that's right. The pump base (diagram #24 ) does fit snuggly. You definitely want to insure the large O-ring on the bottom of the base is well greased. Otherwise it may roll up as you press the base into place. I used Vaseline...but just about any multi-purpose grease will work. Also, be sure to wrap the drive shaft slines with a piece of masking tape to prevent damaging the seals/o-rings as you install them onto the shaft. I used some liquid dish soap to lube up the impeller as I installed it in the base housing...some guys just use grease for that.<br /><br />Anyway...you know the drill. Just go back together by the book...<br /><br />Walt

 

[Trent]

Re: Water in lower while hoooked to a hose

Look at the bottom of this page (link) it should answer all your questions on parts. Go to NAPA with the 18- number and order them.<br /><br /> Pump kits

 

[deserttoad]

Re: Water in lower while hoooked to a hose

Thanks Trent. I bet I'll save a few bucks in the process. Is there a sure way to make sure I get the correct pump? My lower is a 1973.<br /><br />we're getting oh so close...<br /><br />Jim

 

[Trent]

Re: Water in lower while hoooked to a hose

Go back to the web page...<br /><br />S/N 2791957-4893634 <br />1970-1977 year models

 

[deserttoad]

Re: Water in lower while hoooked to a hose

Great!<br /><br />I will order one tomorrow, just hope the dumb kid at my local NAPA can figure it out.<br /><br />Thanks again!<br /><br />Jim

 

[MrBill]

Re: Water in lower while hoooked to a hose

Desert Toad:<br /><br />You may have gotten into a nasty little mess....note that the schematic that Trent posted specifically says that the gear housing type shown has an "A" or "M" stamped on the propeller shaft. This is critical !!! There is also a slightly different Alpha I type of lower unit. It is vertually identical, and the appropriate parts must be used, many are not interchangeable. I understand that Trent sent the schematic as a general guide, but you need to know the specific lower unit type and use the right part numbers (eye-balling seemingly similar parts is not close enough). Check out this site which shows schematics and lists the official Mercruiser part numers by engine and drive type. <br /><br /> http://www.mercruiserparts.com/ <br /><br />Unfortunately, lower unit work is generally not for the novice.

 

[deserttoad]

Re: Water in lower while hoooked to a hose

sheesh. Good news, bad news, good news, bad news. This could drive a man to drinkin.<br /><br />I couldn't get the parts lookup to work on that webpage, but I know I have a 1973 lower, isn't the water pump the same on 1970-1977 models?<br /><br />thanks.

 

[Trent]

Re: Water in lower while hoooked to a hose

If you got the orginal drive...Order P/N 18-3317 from NAPA...Its the whole kit.

 

[Walter]

Re: Water in lower while hoooked to a hose

Trent...<br /><br />Does that kit also include the base??<br /><br />Walt

 

[MrBill]

Re: Water in lower while hoooked to a hose

The 120/140/165 STERN DRIVE (1970 thru 1977) should bear a serial number between 2791957 THRU 4893634.<br /><br />Try this URL:<br /> http://www.mercruiserparts.com/Show...&bnbr=8&bdesc=GEAR+HOUSING+ASSEMBLY,+COMPLETE

 

[Trent]

Re: Water in lower while hoooked to a hose

Walter......Yes it does.

 

[chesire_catt]

Re: Water in lower while hoooked to a hose

Trent can I order any item through napa that is listed on that web site useing their numbers? Are their prices the same?

 

[deserttoad]

Re: Water in lower while hoooked to a hose

My local NAPA had the total kit for 64.00. But just for fun I called a boat store, they had one for $56.00, plus I didn't have to order it.<br /><br />Also, there is no letter on the end of the prop shaft. And I don't have a flush plug. Looks like the water pump on my unit has the flat spot for the flush plug, slightly the wrong pump. Boat store guy says the wrong will work most of the time, and you don't want to use the flush plug anyway....so I know for sure I'm getting the right unit now.<br /><br />But in the NAPA store I thumbed through their book on Mercruiser, they have ALL KINDS of stuff, all electrical items, complete engine overhall kits, gaskets, starters, you name it.<br /><br />Thanks a bunch, I'll get back to work on it in a couple of days.<br /><br />Desert Toad

 

[Trent]

Re: Water in lower while hoooked to a hose

Prices at NAPA are normally a couple of dollars higher than some online places. But you dont normally have to pay shipping and they are their the next day.

 

[Walter]

Re: Water in lower while hoooked to a hose

It's been my experience that Napa is generally much less expensive than my local Mercury dealer...but it certainly pays to compare prices. Napa charged me almost $2 per spark plug...I found another auto parts store down the street that sold them for half that. Not a lot of savings...but hey, it put another couple gallons of gas in the boat!!<br /><br />Toad...considering all you've been through...for crying out loud...PLEASE insure you buy the correct parts for your outdrive!! Summer's passing ya by!<br /><br />Walt

 

[deserttoad]

Re: Water in lower while hoooked to a hose

Yes, summer is passing me by. But our usual lake is almost dry due to a drought.<br /><br />But there is another one I'm eyeing about an hour and half away.<br /><br />soon I hope...soon.<br /><br />New water pump arrive tonight. The war begins again tomorrow.

 

[deserttoad]

Re: Water in lower while hoooked to a hose

ARGH!<br /><br />I just got set to attach my new water pump. And then I noticed there is no seal in the top half of the unit between the steel insert and the top half of the pump. (See attached photo).<br /><br />The seal in the picture is one that came with my rebuild kit, and I'm not sure if it's the right, if I need one, and if so how to get it in there.<br /><br />I think I will call the shop tomorrow and tell them I did get it.<br /><br />again - any help would be great!<br /><br />Jim

 

[deserttoad]

Re: Water in lower while hoooked to a hose

I suppose by now you're all thinking I'm a lost cause...but I called back my boat shop and they said there is no seal up there, seems a bit odd, looks like the old one did.<br /><br />So I shall commence with the attack soon.