oil seal replacement

[gsonnier]

I have a 25 HP '92 Mercury. Just pulled out the bearing carrier assembly to replace the 2 oil seals. I removed the old seals by tapping them out with a hammer and nail driver as the manual suggested. This took a little time as they did not come out easy. My question is how do I get the new seals in without damaging them?

 

[rodbolt]

Re: oil seal replacement

hello<br /> mmmm its tempting to say" using a suitible tool" lots of japenese manuals do that. it will refernce you to a speacial tool part number.<br /> now comes the bad news. did you measure how deep the seals were seated in the bore? some go flush and some recess. some installation tools have a stop to position the seal and some you have to measure. I usually can find a socket that will fit just try to use a press and not a hammer( also known as a swing press.)<br /> good luck and keep posting<br />PS that is why I have so much tied up in special tooling

 

[alcan]

Re: oil seal replacement

I agree with Rodbolt. Seals can be a pain. I allways enjoy it when the manual says to use special tool# so and so. I do the same thing, I will carefully choose a socket that closly fits. Even if you have the correct tool you can screw it up if your not careful.

 

[gsonnier]

Re: oil seal replacement

I did not measure although i did notice that there is a circular line on the inside of the carrier, towards the exterior. The outer seal sat flush to this line so I think that I am good there. I guess it'll just be a matter of not pushing it in too far. I'll see what I can do with the socket. I don't have or know what a press is so I'll have to do a litte research. I appreciate the help guys.

 

[DHPMARINE]

Re: oil seal replacement

For anyone doing enough seal replacing.....Harbor Freight has a fantastic hydraulic bench press!Rated at 10 ton,less than $150 delivered.I use it more than my 50ton unit.<br /><br />DHPMARINE<br />P.S. does lots more than seals

 

[alcan]

Re: oil seal replacement

A fellow couldn't build one for that price.

 

[DHPMARINE]

Re: oil seal replacement

ALCAN<br /><br />That's the only reason I brought it up.The average guy can finally have a press in his garage.AND it's hydraulic!<br />DHPMARINE

 

[Hairy_Vetch]

Re: oil seal replacement

I have read this as well as just about every oil seal post on these forums. I replaced my oil seals and lower unit is still taking on water. I know for a fact that I did not seat the shift shaft seal all the way down nor the water pump or prop shaft. I know the shift shaft seal seated flush but not sure about water pump and prop shaft. I was scared to put back like it was because I didn't want to damage seal. When they say use a socket where do you want the socket to sit on the seal? On the metal outer ring? These seals have a metal outer shell with rubber middle with a spring around it. 63 merc 650<br />I have not done a pressure test as of yet.