lower unit seals

[realtree280]

i have a 1980 johnson 15 horse J15rcsd<br /><br />wondering how hard it is to replace the seals in lower unit i have seals already, just finsihed putting new head and water cover on. looks like all i need is a puller, any advice ?

 

[MCM]

Re: lower unit seals

This artcle shoud cover it.<br /><br /> http://www.pugetsoundanglers.org/Fishing Info/Johnson_9.9_powerhead.htm

 

[realtree280]

Re: lower unit seals

it helps but seals in kit look nothing like seals in kit except for one maybe they changed them over the years can anyone help i have digital pics if you give me your email

 

[itstippy]

Re: lower unit seals

Make sure you have the right seal kit for your motor - double-check the parts numbers. I've never changed the seals in a 1980 15HP, but my first iBoats post ever was when I was replacing seals in a 1967 20HP. A shop manual for your motor would help you a great deal, if you haven't got one get one. Here's my experience with the 20HP, might help you some:<br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=28;t=027083#000000 <br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=28;t=028684#000001 <br />I've since learned that the two bronze-colored seals should go one facing down, one facing up, stacked like poker chips. The lips in the seals face up, so the bottom seal keeps oil in and the top seal keeps water out. I doubt your gearcase differs much from mine despite the HP and age difference, but if they do you'll figure it out. Post for help as you need it. Work slow, cleaning everything as you go, and you'll be fine.

 

[realtree280]

Re: lower unit seals

seal kit part numbers look correct on 2 different sites they are p/n 396350 johnson parts , but i have no seals like the two i took out that go back to back on prop shaft all others look the same

 

[Walker]

Re: lower unit seals

Yes, sometimes the seals have been upgraded or changed. Look for a single seal with double lips to replace the 2 seals on the prop shaft.

 

[itstippy]

Re: lower unit seals

Part #2 on the pic?<br /> http://ishopmarine.com/ishop/jsp/As...~A0000022~M0016527~M0016538~M0016541~C0247449 <br /><br />Strange. I can see your dillema. From iBoats I get this, Sierra part # 18-2656:<br /> http://www.boatmotors.com/mall/part...gd_poid.110548/gd_row.9/**********.256210194/ <br /><br />But put same part # 18-2656 in at iShop Marine<br /> http://ishopmarine.com/ishop/jsp/AsplIsmSearchResults.jsp?reqFor=26 <br /><br />And you get something different. Anyone know how to work these parts finders better than me?

 

[realtree280]

Re: lower unit seals

yes the parts on iboats looks like what i need , but parts thru johnson is what they tell me i need can you guys give me your email ill send pics to you

 

[MCM]

Re: lower unit seals

Realtree, can you see a p/n stamped anywhere on the seal you have in ?

 

[realtree280]

Re: lower unit seals

i do have a single seal that would fit prop shaft but i am not going to install til you guys have looked at them

 

[realtree280]

Re: lower unit seals

no p/n they are all rusted and gunky guess they have been in for 25 years

 

[itstippy]

Re: lower unit seals

Does what Walker said make sense - i.e. your new kit has a single seal that's as big as the two original smaller seals placed together? That bigger single seal should have two rubber lips inside. If this is so, then use it.

 

[MCM]

Re: lower unit seals

I meant on the part they sent you, the one you don't want to install, might be able to cross reference it

 

[realtree280]

Re: lower unit seals

ok new parts have no numbers on them

 

[realtree280]

Re: lower unit seals

ok can i email you the pictures

 

[MCM]

Re: lower unit seals

Make them small jpg's I've only got dialup<br />mcmcbride1@netzero.com

 

[realtree280]

Re: lower unit seals

do you or anyone have an omc book to see what seal kit part number they list

 

[MCM]

Re: lower unit seals

Called my dealer its a new replacement for the 2 seals, either one works

 

[realtree280]

Re: lower unit seals

great thanks so much off to the shop i go ill let everyone know what its like when finished