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Where Does This Tube GO?

F

Fuddyduddy

Regular Contributor
In my parts kit for the water pump rebuild, I find a small tube that is about one and a half inches (1 1/2") long. I found nothing of the sort when I took it apart. I have a 1977 Merc 500 #4,79x,xxx. I find that it is on the parts diagram but I want to put it back on right. It fits over the main copper tube and fits inside the pump discharge . Just want to make sure before putting it all back on the motor. There is also a three inch(3") hard plastic tube that fits over that main tube. I don't see it in the parts diagram, however. Any help appreciated. Thanks
 
The seal goes in the discharge tube of the housing first, then the plastic tube your talking about goes in after that (push it in firmly), the tube is a guide for the copper water tube.
 
Thank you Jags. I found that I need help putting the lower unit back on so that is coming Monday. This explains why I never see one anyone putting the lower back up by themselves on all the U-tube videos. Most of us don't have three arms. Doesn't help when the garage is hitting 125 degrees, either.
 
I have a 150 and was able to get the lower unit back in by using the tilt. I have a switch at the back so not so bad. I used a step about 18 inches high, guessed the angle and put the unit in but not all the way, adjust the angle and when you close to getting the water tube in then have a nut ready. On mine it went like this. Water tube, drive shaft, then shift rod. If you have a speed tube on the lower unit make sure that that is in position before you get the drive shaft in. Hope this helps. sometimes hard to explain. 125 is definitely dangerous! Lots of water
 
fastjeff said:
Bungee card(s) holding the weight up helps tremendously.

Jeff
Click to expand...
Now that is a good idea. I am one of the fortunate folks that suffer from COPD, and I "run out of gas" trying to hold it up with one arm and fiddle with the drive shaft and water tube, with the other. I'm hoping to not have to go thru this again for a couple of years. Since I got zero bubbles coming up after testing, at 60 psi, I would hope there is no other way for gear oil to take on water. I will find out Monday morning. Thanks for the help guys. As Always.
 
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