9.9 water pump HELP !!!

[Bign71]

howdy all, i have a evinrude 1975 9.9 i am changing the water pump on.... got the lower unit off no problem put new impeller (impelar, empelur, impodentpeller) how ever you spell it... everything went great but the dumb @#$@ that replaced the last one (when ever that was) messed it up.... my engine has a exaust releif tube has no water coming out.... on my water pump houseing there is a small brass tube that runs from the exaust releif to the water pump on the water pump end the tube fits into the housing through a rubber gromet lookin think ... well the dumb @$!% that did the impelar (here we go with that again) missed the gromet with the tube this is why i didnt have water coming out of pee tube on the back of the motor.... everything is perfect housing is in GREAT shape, all looks great except that little rubber gromet it is destroyed and wont seal around the brass tube goin up so the water just leaks into the area around the water pump...

do i have to buy a whole new housing or can i get this gromet seperate ?

what is it called ? where can i get it ?

thanks in advance guys

 

[tashasdaddy]

Re: 9.9 water pump HELP !!!

dealer part # 0302497 GROMMET, Water tube lower 1 $2.20 USD Legend Available

 

[Bign71]

Re: 9.9 water pump HELP !!!

YOU DA MAN BRO !!! WHOOO HOOOOO ... thanks outboard GOD lol

 

[Bign71]

Re: 9.9 water pump HELP !!!

The guy i got the new impellar from today said he has everything i need to fix my water pump.... is this a common part, i meen would this be something my guy should have in stock or should i order it from Iboats ?

Also the smaller of the o rings that are in this water pump Where does it go when i pulled the lower unit it just fell on the ground at my feet i have no idea where it went lol.... Chances are the moron that did the pump last time didnt know where it went either i think he just threw it in the lower unit and told it to find its way home lol... Thanks again

 

[ezeke]

Re: 9.9 water pump HELP !!!

The smallest o-ring in the waterpump kit goes in the groove near the top of the driveshaft, just under the splines. It keeps water away from the crank. Be sure to lightly grease the splines with moly lube or equivalent.

LeeRoy Wisner's thread on the water pump might help you: http://www.sschapterpsa.com/ramblings/Lower_unit.htm

 

[James R]

Re: 9.9 water pump HELP !!!

Ezeke is correct but be carefull to avoid any grease on the very top of the drive shaft. This will pressurize the crankshaft and possibly damage the bearings etc.

 

[Bign71]

Re: 9.9 water pump HELP !!!

Thanks for the link that was very informative !! lol atleast by me goin behind the last guy i have an advantage every part just falls out in my hand lol...no fighting frozen bolts or old grease ... i dont think this motor was EVER run in salt water the inside of the lower unit looks brand new no ware on the water pump housing the cavity in the front of the unit has no dirt oil sand tanks hand grenades or left over bait chunks lol... i was goin to take out the gear box and redo that but im not sure i need to she is as slick as snail snot no grinding noises or anything ... so should i leave well enough alone i think YES lol

the only reason i changed the water pump is that it had no water coming from the pee hole... now i know why the tube wasnt hooked up lol....thanks for all of your help guys !! HAPPY BOATING WHOOOO HOOOO

ps The exaust relief on the upper back side of the engine, or pee hole if you preffer lol... is that just a dummy light that lets you know the water pump is working ? i know the intake and output on her are below the water so is the pee hole just a way to tell the pump is workin or if no pee no cooling ?

 

[Mas]

Re: 9.9 water pump HELP !!!

I think it's there just to make us feel good, because it does not indicate proper cooling...only maybe that the pump is pushing some water. You still can have a motor overheat with the tell-talk streaming. You gotta be one with your motor and recognize what it's trying to tell you with its subtle changes...kinda like a women if you know what I mean.

MAS

 

[Rick.]

Re: 9.9 water pump HELP !!!

bign71: There is a tell tale (pee hole) and an exhaust relief. They both have a role to play. The exhaust relief is on the back side of the leg above the water line. When the motor is at idle the water creates a bit of back pressure at the prop so the purpose of the vent in the leg is to allow the exhaust free passage to the atmosphere. The tell tale ( attached to the lower cowl, back starboard) does indicate your pumping properly and gives you a level of confidence that all is well with your motors cooling. If you see it stop peeing or see steam coming out you know you need to address a problem. I don't know who worked on the water pump last but lets give him the benefit of a doubt. I would imagine he did the best he could and just made a mistake. We all do from time to time. Imagine that you were working on this motor before the internet was up and had no one to consult with on any of these issues. I know the dealer where I live wouldn't give me the time of day so there is no one there to ask advice. We are very fortunate to have this forum for all our benefit. Loads of competent, heart felt, free advice at our finger tips. I know I would not of had the confidence, or the knowledge the members of this forum have given freely to me. Lighten up a bit about the fellow who had the motor before you. By you own admission it sounds like you got a good motor and that is of the utmost importance. Good luck with it. Rick.

 

[tashasdaddy]

Re: 9.9 water pump HELP !!!

remember the tale tell, only tells you the impeller is suppling water, not that the thermostat is opening and closing, cooling the block.

 

[Bign71]

Re: 9.9 water pump HELP !!!

Dont worry im not Down on the ol boy that i got the motor from, he admitted he was an idiot lol... i happy to have this old beast !! yup yup

quick question and i do meen quick cause i doin it right now lol...

the exaust relief tube ( copper or brass) that fits in the gromet on the water pump and runs up to the power head, does that just fit into another gromet on the top side ? Can i just pull that out or do i need to take something else apart ?

i have the new pump kit and it came with the gromet i needed and 2 others one looks like it would go on the power head end of the tube can i get to that easy... i should use all the new parts right not just the one i need ?

 

[ezeke]

Re: 9.9 water pump HELP !!!

Don't pull the water tube unless you want to disassemble the motor.

The water tube is not the exhaust relief; it is primarily the source of cooling water going through the engine.

The excess water and exhaust builds up inside the midsection and outside of the inner exhaust and is relieved though the exhaust relief holes.

The water pump kit does not have parts for the top of the water tube.

 

[Bign71]

Re: 9.9 water pump HELP !!!

lol im glad i decided to check the computer real quick... i was fixin to rip that beast out of there lol... thanks brother you saved me a headache.

1 more question... the kit came with a washer kinda thing but i dont see any place it goes... i didnt take one of these off when i pulled the old pump... its a washer with a lip it does fit on the shaft but i dont see where like i say i didnt take one of these off lol

 

[ezeke]

Re: 9.9 water pump HELP !!!

The seal, part number 318972, fits flat side up in the top of the plastic water pump housing. It prevents water from passing up the driveshaft. There should also be a large o-ring that forms the outer seal for the driveshaft tube.

 

[Bign71]

Re: 9.9 water pump HELP !!!

lol thats what threw me off.. the housing had one in it.. .do they send an extra ?

also... ive got it all back together runs great fires first pull but... still no water coming from the exaust relief... i have only let the motor run for 1.5 to 2 mins because i was scared the pump isnt working.... does this thing have a thermostat like a car... is it only goin to spit water when it warms up?


i read the owners manual and it said something about a fine mist of water will dispell from the exaust relief when engine reachs running temp... am i just no lettin it warm up ?

 

[ezeke]

Re: 9.9 water pump HELP !!!

If you are running in a bucket, try getting the mid-section deeper in the water. If you are using muffs, increase the pressure a little.

Do you have a tell-tale?

 

[Bign71]

Re: 9.9 water pump HELP !!!

im using a 200 gallon container ive got water about 3 inchs past the intake ill add more and see what happens

 

[ezeke]

Re: 9.9 water pump HELP !!!

The thermostat is behind the water cover on the cylinder head at the lower end. It is a real PITA to service, so for now use your fingers on the cylinder head to check for cooling.

You should be able to keep your fingers on the cylinder heads for three seconds any time the motor is running. The thermostat is 143 degrees so don't keep your fingers there too long or you can get third degree burns.

 

[npd4432]

Re: 9.9 water pump HELP !!!

lol thats what threw me off.. the housing had one in it.. .do they send an extra ?

Yes they do, I just did one on my 15 HP and I was perplexed when I saw the extra seal. I did not know where it went and after some looking around I figured it out.

Also if you did not buy the BRP kit, my aftermarket kit did not have the "raised" front for the bolts which requires the longer bolts in the front and the shorter bolts in the rear. I used the supplied bolts which were equal legnth due to the housing not being "raised" on the front end.

 

[Bign71]

Re: 9.9 water pump HELP !!!

is the thermostat just hard to get too?

i can blow threw the exaust tube , i hear air blowing but i dont feel the air boming out of the exaust relief...

where can i get a pic of the thermostat so i can see what im lookin for?

could it just be stuck or something...i dont even know what it looks like lol