help with a 1975 johnson 65hp

[jparker70]

at idle the pee hole dribbles water. at high rpms it still just dribbles water. is that normal or not. and how hard is it to change the water pump?<br />also after you have been on the water for a few hours it is hard to crank but will after about the third time?? also has a problem idling after a run, but touch the throttle and it idles fine???<br /><br />any help would be appriacted.

 

[G DANE]

Re: help with a 1975 johnson 65hp

Hi Jparker<br /><br />It could sound like its heating up.<br /><br />Not to be rude, but it could sound like you are about to ruin your motor by lack of service. It has signs of getting hot/seizing which is very bad to pistons/cylinders, and probably needs a carb clean/rebuild. When was the last time water pump/impeller was changed, it should every other year ? If yo dont have a manual, i suggest you to buy one or get one from library, job isnt very difficult. I wouldnt advise you to run it before cooling problem is solved.

 

[G DANE]

Re: help with a 1975 johnson 65hp

Hi again Jparker 70<br /><br />I just gave your problem a couple of extra thoughts. The reasons for your problem can be several. <br />1: your cooling must work. If you dont know the impeller was changed within the last two years - do it. If it is the old cast pumphousing and its been in salt water, it will need a complete pump set. If the impeller should be fresh, try to clean the hose and pee-hole - maybe blocked by insects or so. <br />2:Has this motor sat ? If it has, it probably needs a carb clean, or better rebuild due to its age, jets can get a little varnished every year. Can you hold your hand on powerhead for 2-5 seconds without getting burned when it starts acting like it dies ? If you can it isnt heating up. If it does you have to check thermostat as well.<br />3:If above doesnt help, check compression. On a motor like your it should be around 120 - 150, but at least boyond 100 and within 10 PSI an all three. Do a little work and post back.

 

[jparker70]

Re: help with a 1975 johnson 65hp

water pump was rebuilt lst august. i bought the boat used in januaryof this year. i have cleaned the carbs. as for as it beng hot i have no clue i will test it tommorrow.

 

[jparker70]

Re: help with a 1975 johnson 65hp

I CARRIED TO THE SHOP TODAY THEY SAID EVERYTHING WAS FINE AND THAT MY PEE HOLE HAD BEEN ADDED TO THE CONNECTION TO A WATER PRESSUE GAGE?? DOES THAT SOUND RIGHT TO ANY BODY. THE WATER SPRAYS OUT BOTH SIDES OF THE CONNECTIO BETWEEN LOWER UNIT AND UPPER UNIT?? IS THAT NORMAL? PLEASE HELP

 

[jparker70]

Re: help with a 1975 johnson 65hp

the motor is 1970 b series if that helps <br />anybody and a 60hp not a 65

 

[DJ]

Re: help with a 1975 johnson 65hp

jparker,<br /><br />Water is not supposed to spray out the lower unit to mid section joint. I suspect whomever did your water pump did not do it right.