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Water impeller play

D

dpcub

Contributing Member
"E50TLEOD... 1995... I am inst

"E50TLEOD... 1995... I am installing a new impeller kit. I was getting a lot of play between the impeller and driveshaft, so I installed the new impeller with a new cam on the driveshaft without any other parts installed. I have about 45 degrees of play between the impeller and driveshaft. is this normal? I had about the same with the old cam, so I ordered a new cam, thinking the cam was worn. I am getting the same thing with a new cam."
 
"there r 2 keys--blk and wht--

"there r 2 keys--blk and wht--make sure imp fits shaft tight,and key is also a snug fit."
 
this had a black cam. the impe

this had a black cam. the impeller is loose on the shaft. the impeller and cam are new. how do I get it tight? the shaft doesn't look worn.
 
"I don't have the pump ass

"I don't have the pump assembled, but the impeller is really loose when I slide it on the driveshaft with the new cam (or key). I ordered the key new from the parts catalog for this engine."
 
"it is a 3 blade. the number o

"it is a 3 blade. the number of the kit is 18-3394, which says replaces 433548. this is what the parts book says I need. the cam is a # 334897 and is black"
 
you talked about a white key.

you talked about a white key. Is there a larger cam that would be tighter
 
"i dont think it would fit--fi

"i dont think it would fit--fits larger imps..
89 and later,use a blk key on your eng.,went to parts room and ck'ed on it."
 
"jwb...I see now how the taper

"jwb...I see now how the taper works. it gets tighter as it rotates in the direction of rotation. I have a question. there are several o-rings in this kit. which one is used between the impeller plate and impeller? one is about an inch in diameter. the other is about 3/4 inch in diameter. the larger slides over the driveshaft easily and the smaller has to stretch a little bit, but the larger is a lot thicker and seems to be a lot between the impeller and impeller plate."
 
"if u r using a factory kit,on

"if u r using a factory kit,one under imp,one under cup....if u r using sierra,under cup only."
 
"I don't know what I'm

"I don't know what I'm doing wrong. I ran this on the flusher and in a barrel of water. I'm not getting water out the hose from the top of engine. I'm not sure, but my understanding is this hose is to let you know the impeller is working.

I put a new impeller and seals when I had it apart to put gearcase seals in. then I had an electrical problem that turned out to be the powerpack just like jwb said (thanks jwb). I cranked the engine quite a bit while troubleshooting the electrical problem, but never started. when I got it running, I had no water coming from the hose.

gearcase came back off ( I'm getting good at this procedure). I ordered a sierra kit, thinking that all the cranking damaged the impeller. I put the sierra kit in, and still no water coming from the hose. I am only running this for a minute or two. I never let the temp gage rise before shutting it off.

I have put these in exactly like the shop manual (which I have) says. I did not put the o-ring under the impeller in the sierra kit, as per jwb. I grease the cup, plate, and impeller when I assemble it. when I dropped the gearcase this time, the impeller is moving and looks fine when I view it through the water outlet hole.

the only thing I have not replaced is the housing. could it be warped or cracked. I have to be missing something. It seems the pump is picking the water up, because when I dropped the gearcase, and the seal on top of the housing separates from the exhaust housing, water drains from the water intakes, which I believe means water must be in the pump.

I'm about to pull my hair out... please help"
 
"you are not getting water out

"you are not getting water out of the pee tube coming from the head or you are not seeing it come out the exost relife holes above the water line,make sure the pee hole is not clogged(take a small piece of wire and fish it out.
you will not see water coming from the exost relife holes they work on back pressure when the prop is in the water.
make sure the tube is going into the the pump housing when you bolt up ,it slides into the taperd hole in the pump housing. if you miss no water will go to the engine,is there warm water coming from the prop ?
welcome to the wonderful world of outboards,i to have been through problems like yours ,pulling the lower unit on and off only makes you smarter.
but it sucks just the same.
repost in about an hour thats about how long it should take . lets hear some good news"
 
"thanks... I'm glad I'

"thanks... I'm glad I'm not the only one with these problems. It's true, I am learning a lot about this little critter. I am used to working on my other boat. the engines in that are more what I'm used to. I've got the gearcase off now. when I blow in the pee tube, air is coming out the taper hole in the bottom of the exhaust housing. I have checked when installing, and the tapered rubber connector was going in this hole."
 
thanks for your help charles a

thanks for your help charles and jwb. I can't work on it anymore today. I have surgery scheduled tomorrow morning and have a lot to do before then. I severed the tendons on my left thumb. I will be back tuesday. maybe you two can give me some more ideas. are the exhaust relief holes the little ones on the back where the covers come together? I ran this in a tub of water and still saw no water. how long can I run this without damage? how long should it take see water out the pee tube? Could it be that the pump is not pulling the water up to it?
 
"pee tube almost immeaditly af

"pee tube almost immeaditly after starting
exhaust relife holes .yes.
do not run it long ,it will heat up faster than you think with no water.
do you have warm water coming from prop,
that is an indication there is water flowing through the engine,if its in a tub you cant tell
i understand that."
 
"u need to have the lower uni

"u need to have the lower unit,...in deep enuf water,to cover 5" --at least,above where it bolts on..in a tub,....wont get it.....then,my suggestion,would be to pull the lower unit cking direction of imp blades,they 'sweep'.also,u prob missed the water tube upon installation,if u r getting cold prop wtr discharge and no wtr to pwrhd."
 
"is the flusher with full wate

"is the flusher with full water flow ok? the water tube, that you talk about, is that the tapered rubber grommet on the impeller housing and there is a taper in the metal part of the exhaust housing?"
 
the water tube is the copper t

the water tube is the copper tube that fits into the output of the wp housing........can be a pain sometimes-------i use a flashlight and a long slim screwdriver to help align them when i do one.

have you checked for blockage below the water pump?......have you hooked the muffs to the lu while it was off the motor?

it sounds like you have everything right ..........from what ive read........

im curious to know what is going on.
 
"I have checked between the im

"I have checked between the impeller and water inlet screens with the gearcase removed and it is open. when I blow in the pee tube, air comes out the tapered hole in the bottom of the exhaust housing. It seems all the passageways are open. I have the impeller blades in a trailing position as JWB said. I believe, and correct me if I'm wrong, the driveshaft, as viewed from above, rotates in a clockwise direction, as shown in figure 10, page 6-7 of the repair manual.

This water tube is what I don't understand. in the repair manual, page 6-7, figures 8 and 9 show a tube. I don't see this in the parts manual, and I don't have that. my impeller housing doesn't have the threaded hole to attach the water tube bracket as the manual states in paragragh 7 and 8. I have a tapered rubber connector on top of the impeller housing, and on the bottom of the exhaust housing is a taper hole. I have measured from the parting lines of each and appears this grommet squashes into this hole. I may be wrong and maybe this is my problem."
 
"do you have any pics?

what

"do you have any pics?

what manual are you looking at?.........have you checked out the exploded diagrams at http://shop2.evinrude.com/ext/index.aspx?s1=21ec13d3db6c4b1ee16432779e36f92b ?

you should have a water pick up tube that has to be aligned with the water outlet from the water pump.........these can be difficult to align while the unit goes together because of the small space you have to work with.

what hp and model are we talking about?"
 
"1995 50hp E50TLEOD, in the p

"1995 50hp E50TLEOD, in the parts list for the gearcase, item # 60 is the grommet. where is the tube?
I'd also like to say, you guys are very helpful. We will figure this out. sorry for my ignorance when it comes to the terminology."
 
yes sorry about that i scrolle

yes sorry about that i scrolled back to the top and found where you had already posted the model.

i have searched the diags and cant find a water tube either.

ive never had one this new. so when you put the lower unit up to the exhaust housing does this #60 grommet seal against anything?.........im thinking maybe the tube is integrated with the ex housing.

are you replacing the whole pump or just the impeller?
 
"my water pick up tube is #27

"my water pick up tube is #27 on the same site----johnson 115tl79r....exhaust housing section.

the guts on mine are totally different from yours.......thats why im thinking maybe its a design change to make rep wp easier.

what is this #108 (braided sleeve) that shows up on your exhaust housing?.....probably have to wait for some of the gurus to answer that.

like i said everything youve posted looks right............you have blown through the passages and all are clear. if there isnt any tube to align , rather its integrated, im thinking your impeller isnt turning with the drive shaft."
 
"yes, there is a tapered hole

"yes, there is a tapered hole that seems to be part of the casting of the exhaust housing. with the gearcase removed and on a stand, I measured from the parting line of the gearcase (that seats on the exhaust housing) to the top of this tapered rubber grommet. then I measured from the lower parting line of the exhaust housing up to this tapered hole in the exhaust housing. I compared these measurements and indicates that this grommet tightly pushes against this tapered hole in the exhaust housing. I have installed a new impeller kit. The only thing that is not new is the black water pump housing."
 
"when I have the gearcase remo

"when I have the gearcase removed and sitting on a stand, I can, with a flashlight, see a little bit of the impeller down through the outlet hole. It is turning with the shaft and is trailing as JWB said. I wonder if I don't have the housing sealed properly and is pulling air somewhere."
 
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