water pump

[oldboatguy]

when replacing the water pump on a 1971 evinrude outborad
does the impeller and cover go on from the top of the drive shafter
or do you pull the drive shaft out of the gear case and put in on from the
bottom.......

 

[F_R]

Re: water pump

Depends. What motor are you working on? Some have a pin through the top of the shaft. In that case is is easier to pull the shaft out of the gearcase.

 

[tashasdaddy]

Re: water pump

what 71 motor?

 

[oldboatguy]

Re: water pump

1971 evinrude 2 cylinder

 

[samo_ott]

Re: water pump

Most of them are 2 cylinder. What HP and model #?

 

[oldboatguy]

Re: water pump

it is a 1971 evinrude 71 hp
model number is not available at this moment
but it dose not have through prop exhaust

 

[F_R]

Re: water pump

No such animal.

 

[oldboatguy]

Re: water pump

sorry FR poor typing on my part
70 hp.

 

[F_R]

Re: water pump

The pump parts are assembled over the top end of the drive shaft. In fact, the shaft won't even come out without major work.

 

[oldboatguy]

Re: water pump

thanks,
i am still looking for the thermostat on this engine
1971 40 hp evinrude
i removed the waterjacket plate covering the heads and no
thermostat.....do you have to remove the head??????
or the exhaust cover plate ?????
thanks again for the info

 

[F_R]

Re: water pump

So, the 71 horsepower motor that was a 70 horsepower now is a 40 horsepower? There is no thermostat on a 1971 40hp.

 

[oldboatguy]

Re: water pump

DUH!!!!! thanks for the note on the thermostat...........
it is a 40 hp evinrude when i had the water jacket plate off of the
cyl. heads and i ran it at first no water moved then after 2-3 min
water shot came out really well..... i assumed there was a thermostat...
since i had taken one out of a 1966 eveinrude 40 hp Lark
i am going to replace the impeller just to be on the safe side..........
thanks again for the help
i am really not an idiot,,,, i am rebuilding and restoring 3 boats at the
same time,,,,,,glutton for punishment i guess... 2 are 40 hp one is 1966 and 1 is 1971 and ther other one is 70 hp..... i do have all of them running and am
close to taking for sea trial.........