1957 evinrude fleetwin 7.5 water pump

[xXA_HillbillyXx]

I am trying to change the water pump on my 1957 evinrude 7.5hp outboard and I cannot get the bottom part where the impeller is to come of for the life of me... i remove four screws just above the propeller and it will slide out some but then it hangs up... i am sure there is a screw i am not seeing somewhere any help would be greatly appreciated thanks

-nick

 

[floatingwoody2006]

Re: 1957 evinrude fleetwin 7.5 water pump

I am trying to change the water pump on my 1957 evinrude 7.5hp outboard and I cannot get the bottom part where the impeller is to come of for the life of me... i remove four screws just above the propeller and it will slide out some but then it hangs up... i am sure there is a screw i am not seeing somewhere any help would be greatly appreciated thanks

-nick

The powerhead on this model has to be removed to get the lower unit off..There are literally a hundred posts that will help you with this. Search for 1957 7.5 impeller change..

 

[xXA_HillbillyXx]

Re: 1957 evinrude fleetwin 7.5 water pump

i typed that into the search bar and no results came up

 

[Chinewalker]

Re: 1957 evinrude fleetwin 7.5 water pump

Try searching for evinrude fleetwin, you'll find a few.

As noted, you need to pull the powerhead to access the shift rod disconnect - should be two nuts at the top of the shift rod with a lock washer between them. Also, note the order in which the spring, seal and washers come off the driveshaft - they MUST go back the same way. If the o-ring in the carbon seal is cracked, replace that, and if the gasket on top of the washer is distorted, replace that, too. Grease the driveshaft splines before re-installing the powerhead.

- Scott

 

[xXA_HillbillyXx]

Re: 1957 evinrude fleetwin 7.5 water pump

Interesting i type that into the search bar on this site and nothing... i typed that same thing into google and got a very informative thread on this site...
This was made by someone on this forum... is it close enough for me to use as a guide? http://www.outboard-boat-motor-repair.com/Johnson%20%205.5%20HP%20Seahorse%20Outboard%20Boat%20Motor/Remove%20Lower%20Unit%20and%20Replace%20Impeller%20Water%20Pump.htm mine is a fleetwin his is a seahorse and mine is 7.5hp his is 5.5hp..

 

[F_R]

Re: 1957 evinrude fleetwin 7.5 water pump

Well, that's pretty good, but you do NOT have to remove the roll pin. Just pull the shaft out of the lower unit, it isn't going to fly apart or enything, and it WILL just slide right back in.

There is a guide hole that the shift rod goes through. Hunker down and look up in there and you will see it.

The seal assembly on the shaft is of the utmost importance. Make sure it is 100% good, and replace the 303347 o-ring and 303355 gasket. If the seal fails, it will destroy the powerhead over time.

Reading the word on the oil level plug, it says "Hypoid". Hypoid oil is 90 weight gear oil, not hydraulic oil.

Yes, 5.5 and 7.5 are the same.

 

[xXA_HillbillyXx]

Re: 1957 evinrude fleetwin 7.5 water pump

Ok I got to power head removed and all that good stuff but when i got the impeller housing off i noticed that the impeller I got from napa was way bigger than the one that was inside the assembly. the one in the assembly was a little bigger than a half dollar.. the one i got from napa was a lot bigger its part number is 18-3001 i am wondering if i was right that it is a 1957 7.5 hp evinrude its model number is 7522-02548.. any help in this area would be great. i have this thing all torn apart and would like to get it back together asap
Edit: the impeller that is inside my motor looks more like this one but i cannot tell if it is the right size. http://www.napaonline.com/Search/Detail.aspx?R=SME183091_0134662677

 

[Chinewalker]

Re: 1957 evinrude fleetwin 7.5 water pump

I'll bet someone at some point updated the waterpump housing and impeller on yours to the one they started offering in the 1980s. In that case, you'll need an impeller for a c. 1982 7.5 hp. They offered a housing that retrofitted the then new impeller to the old motors. I prefer the older impeller (18-3001 style) myself - seems to be more robust. You can also get an earlier style impeller housing to go with the impeller you have. I may have a seviceable used one if you need it...
- Scott

 

[xXA_HillbillyXx]

Re: 1957 evinrude fleetwin 7.5 water pump

What is a c. 1982 7.5? is this the right impeller? http://www.napaonline.com/Search/Detail.aspx?R=SME183091_0134662677

 

[Chinewalker]

Re: 1957 evinrude fleetwin 7.5 water pump

Your link doesn't take me to anything other than a search page.

c. 1982 means circa 1982. The 7.5hp models of the 1980s used a smaller waterpump impeller, but I think the diameter of the shaft was the same, hence the ability to use that impeller with a different housing on the older motors.

 

[xXA_HillbillyXx]

Re: 1957 evinrude fleetwin 7.5 water pump

ok i just got back from napa and he is ordering one that "might" work... if it is the wrong one does anyone know where i can get a new housing(that is for the 57) and everything i need to get this thing changed?... part numbers would be nice

EDIT: OK i found this in the description of this it says it will fit my motor
http://www.go2marine.com/product.do?no=156262F
it says "Water Pump Repair Kit Fits 5.5 & 6 HP 1954-79 and 7.5 HP 1954-58 Johnson or Evinrude outboard engines #763758."

 

[1946Zephyr]

Re: 1957 evinrude fleetwin 7.5 water pump

That is way more than you need to spend. If your original water pump housing looks good, then I would just buy an impeller. Those are a lot less than 69 bucks. Impellers are easily obtainable here at iBoats or your local yocal marine dealor. If not, go to Sea-Way.com and order one.

I wouldn't buy sierra parts. vintageoutboard.com has excellent oem quality parts for that motor too.

 

[Chinewalker]

Re: 1957 evinrude fleetwin 7.5 water pump

All you need is the impeller from that kit, although the picture they show will NOT work with your motor.

As I noted in my first post, I probably have a serviceable original style pump housing for your 7.5 if you do go that route...

 

[xXA_HillbillyXx]

Re: 1957 evinrude fleetwin 7.5 water pump

I would much rather just use the housing that is in it but the problem is that i am haveing trouble finding the right impeller for it the 18-3001 impeller is not the right one it uses the smaller one you were talking about earlier but we have no clue what the part number or anything is for it

 

[1946Zephyr]

Re: 1957 evinrude fleetwin 7.5 water pump

Call Doug at vintage outboard. They have parts that match OEM perfectly.

509-747-9960

 

[Chinewalker]

Re: 1957 evinrude fleetwin 7.5 water pump

I believe the Sierra number for the impeller you're looking for is 18-3050 (OEM #386084).

 

[xXA_HillbillyXx]

Re: 1957 evinrude fleetwin 7.5 water pump

I dunno why i didnt post this before but the part number (the only number i can find) on the housing i have that came out of my motor is 323596... i hope this can help get this resolved

 

[oxboat]

Re: 1957 evinrude fleetwin 7.5 water pump

Did you ever find that impeller, as I am looking for the same thing and think I have it coming in the mail.

 

[54fleetwin]

Re: 1957 evinrude fleetwin 7.5 water pump

That part # says its a '79
6RL79E 1979
Assembly: GEARCASE HOUSING, Impeller (SKU: 0323596)