18 20 or 25 Hp Johnson Evinrude Lower Unit Reseal - Part 1/2

This video shows you how to reseal your leaking or leaky 18 Hp 20 Hp or 25 Hp Johnson / Evinrude Lower Unit Gearbox by disassembling it and reassembling installing new seals and gaskets. If you have water in your Lower Unit oil then you need to repair the gear case by replacing the seals. This video will also show you help you with a johnson evinrude water pump replacement.
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*** SEAL KITS on AMAZON ****
HP YEAR PART NUMBERS
5.5 (1*) 1955-1967 amzn.to/2vkdfRB 18-2679
6 (1*) 1955-1967 amzn.to/2wrMACh 18-2679
6 (2*) 1967-1968 amzn.to/2vkAD0Y 18-2680
6 (3*) 1968-1979 amzn.to/2vhLkmH 18-2681
7.5 (1*) 1955-1967 amzn.to/2wrMKtn 18-2679
9.5 (M Suffix) 1958-1967 amzn.to/2vMWT77 18-2682
9.5 (B Suffix) 1967-1973 amzn.to/2vk2FtG 18-2683
9.9 1974-Up amzn.to/2l9sMPK 18-2656
15 1974-Up amzn.to/2l9sMPK 18-2656
9.9 (2 Stroke)1974-Up amzn.to/2l9sMPK 18-2656
15 (2 Stroke) 1974-Up amzn.to/2l9sMPK 18-2656
10 1958-1967 amzn.to/2vCF8XB 18-2682
18 1958-1973 amzn.to/2frfJJH 18-2684
20 1966-1973 amzn.to/2frfJJH 18-2684
20 1979-1982 amzn.to/2frfJJH 18-2684
20 1985-Up amzn.to/2sX16C0 18-2658
25 1955-1959 amzn.to/2vklNI9 18-2686
25 1968-1978 amzn.to/2frfJJH 18-2684
25 1979-1982 amzn.to/2vhKGpx 18-2685
25 1983-1984 amzn.to/2JEEEIf 18-2657
25 1985 - up amzn.to/2sX16C0 18-2658
25 (4*) 1990-1995 amzn.to/2JFdAIG 18-2694
25 (Comm) 1985-Up amzn.to/2JQiUF9 18-2657
28 1962-1970 amzn.to/2sWUjrW 18-2686
28 1985-1998 amzn.to/2JQiUF9 18-2657
30 1955-1959 amzn.to/2sWUjrW 18-2686
30 1976-1995 amzn.to/2sX16C0 18-2658
33 1962-1970 amzn.to/2sWUjrW 18-2686
35 1955-1959 amzn.to/2sWUjrW 18-2686
35 1977-1992 amzn.to/2sX16C0 18-2658
*** SEAL KITS on EBAY ****
thisoldoutboard.com/johnson-ev...
NOTES
(1*) : 1967 D Suffix Only
(2*) : 1967 S Suffix Only, 1968 C Suffix Only
(3*) : 1968 A & R Suffixes Only
***** IMPELLER / WATER PUMP PART NUMBERS ***
3 Hp -- 1957 - 1961 -- amzn.to/2xWqLiT
4 Hp -- 1981 - 1982 -- amzn.to/2xWqLiT
4 Hp -- 1983 - 1988 -- amzn.to/2gWpA8w
5 Hp -- 1965 - 1968 -- amzn.to/2xWqLiT
5.5 Hp -- 1958 - 1964 -- amzn.to/2xWqLiT
6 Hp -- 1965 - 1978 -- amzn.to/2xWqLiT
6 Hp -- 1979 -- amzn.to/2xVzpxS
6 Hp - 1984 2004 -- amzn.to/2gWpA8w
7.5 Hp -- 1957 -- 1amzn.to/2xWqLiT
7.5 Hp -- 1980 - 1984 -- amzn.to/2gWpA8w
8 Hp -- 1985 - 2004 -- amzn.to/2gWpA8w
9.5 Hp -- 1964 - 1973 -- amzn.to/2gWwLO3
9.9 Hp -- 1974 - 1999 -- amzn.to/2yEMPwV
10 Hp -- 1959 - 1963 -- amzn.to/2gWwLO3
15 Hp -- 1974 - 2007 -- amzn.to/2yEMPwV
18 Hp -- 1960 - 1973 -- amzn.to/2gxPGBF
20 Hp -- 1966 - 1973 -- amzn.to/2gxPGBF
25 Hp -- 1969 - 1978 -- amzn.to/2gxPGBF
25 Hp -- 1979 - 1984 -- amzn.to/2yGxpc8
25 Hp -- 1985 - 2004 -- amzn.to/2xVjHxU
**************************************************
Link to Part 2 - • 18 20 or 25 Hp Johnson...
********* NEEDED TOOLS *********
8-4-C Lubricant - amzn.to/2CSnKgW
3M Gasket Adhesive - amzn.to/2vkl5ug
Thicker / Better Spaghetti Seal - amzn.to/2vhDTfw
Hand Impact Driver - amzn.to/2vhPGKK
Pick Set - amzn.to/2wrYCLZ
**** OMC SERVICE TOOLS ****
Brass Shift Rod Bushing Removal Tool - ebay.to/2PgeDPE
**** DISCLAIMER *********
Note these are Amazon and eBay associate links. I earn a small commission for my efforts at NO cost to you.

[@mikekmalick]

I have the same motor and getting ready to tear apart. Thank you for taking the time to make this how to video. It makes me more confident in the task now that I have seen it taken apart. I didn't know there was a gasket kit for the lower unit either. You saved me money by buying the kit instead of each part. Thanks again!!

[@salvadormendez1651]

This video saved me a big headache! My water pump screws We’re broken in the housing and it’s been months since I last worked on my engine . I decided to look into a new housing but didn’t know how to take apart the gear housing until I saw this video ! 196925hp evinrude

[@wg7644]

GREAT VIDEO!!!!!! GREAT LINKS TOO. Hard to find good vids like this - thanks

[@myfrsdrop7908]

used the link because these are great videos! Thanks!

[@pegisis02]

Great job and explanation of the work needed. Wish more tutorials were like this. Keep up the good work!

[@thisoldoutboard]

Thanks! I just snagged a couple of mint motors 1989 evinrude 25 and 1989 Mercury 20 hp. Hope to have more content soon

[@rockerneck]

Good stuff. I just bought one of these and need to do this.

[@jrharrison3]

Great video! Thanks

[@roadking6374]

Thank you very much for the link to buy that brass bearing removal tool ! I tried using a large punch I already had with no joy. Went ahead and bought that removal punch tool with the graduated steps and it came right out!

[@thisoldoutboard]

Easy peasy lemon squeezy

[@shad559100]

Purchase a 1/4" socket screw 4" long, grind the OS diameter of the head down to where is just slightly bigger than the ID of the brass bushing - insert in shift rod hole bottom to top, you then have the option of using a phillips head screw driver inserted in the head to DRIVE it out or pull it from top side with a drilled bar and a nut -you won't damage the bushing and it can be reused.

[@levi1669]

Can you add the part # for the driveshaft roller bearing removal tool? I haven’t had any luck finding it. Thanks for the vid. Great resource.

[@publicEnima]

Great Videos. Is the 1957 fd-11 18hp lower unit seal kit the same as the 1958 ones you have listed? I read somewhere the seal to the prop shaft is different on the older 57 models and Evinrude change size in the middle of the year.

[@kone2370]

Will the parts list and disassembly be the same for my 1970 johnson 25hp

[@The912brian24]

Do you have the link or part number for the needle bearing removal tool?

[@jeffreylietzke5956]

Just looked up the 2-4-C grease, it says in the description NOT for use in needle bearings, i see thats what you used on your needle bearings, any idea why they say that?

[@kx85isweet]

hey man do you have a carb rebuild for a early 80s 20?

[@jshenderson]

Did you pull the magnet out? if so can you show how it is installed?

[@Pysa700]

What is the part number or link to the driveshaft bearing tool?

[@kudalauthebat]

hi sir,can you tell what impellar repair kit part number that lower unit?what year is that lower unit.i have 25hp and mine lower unit look the same.

[@jacobtaylor6910]

Could you give me a link for the clutch dog?

[@dean7416]

Is a 1988 Johnson 28 SPL nearly the same as this model? I’ve heard that the Johnson/Evinrudes from 20-35hp are just about the same. Thanks in advance.

[@patspotpage]

Hi, where can I get the seal (309044)? The link you shared has been out of stock for over a year. Thanks!

[@gregoffenback6910]

Frequently I have trouble getting the driveshaft and prop shaft seals out. I usually bend the seal out of shape so bad using the screwdriver method, I have to end up cutting the seal out with a Dremel tool. I sure would like to find a better way to remove these seals. I have done probably 20 of the old OMC motors, and I always struggle to get the old seals out.

[@jimcatanzaro7808]

I use a big wrench and put the cylinder in a vice with rags and take a 3/4 wrench and pry it out with the claw comes right out most of the time

[@danharper6488]

Whats top and bottom of the drive shaft

[@donaldhaddix8473]

do i have to have dent spring in a 1975 25 HP evinrude

[@jeanfrancoeur]

What tool for bearing please

[@markgillespie8762]

I’m old. Can someone help access the links where I can purchase the necessary tools?

[@newpaintpro]

I’m looking to purchase a new needle bearing ( the one that the drive shaft goes into, not the gear case needle bearing ) 76 Johnson 25 HP, as well as the six screws that hold the skag on. Do you have a link to where I can purchase those ? Thanks and great video

[@thisoldoutboard]

www.marineengine.com/parts/johnson-evinrude-parts.php?year=1976&hp=25&model=25602E&manufacturer=Evinrude&section=Gearcase

[@Rockers1121]

I'm working on a 1981 25hp .. I got the seal kit and the impeller kit and 847 , just waiting on the spaghetti.. I bought the spaghetti you suggested.. figured I might as well, .. cost me like 40 bucks or so tho .. also waiting on the brass fitting removal tool. .... I have a question. I'm considering putting in a new thermostat as soon as I'm done with this bottom end... honestly I don't see where the thermostat is located tho ? Like I see where the water hose from the block goes .. but not sure how the thermostat is placed, or attached in this model? .. my last engine was a 72 6hp evinrude... this one is still fairly easy but .. just don't see the housing where a thermostat would go. .... not sure if it even needs replaced .. was gonna replace it even if it doesn't need it .. just so I know it's not a worry for awhile.

[@thisoldoutboard]

Find number 19 in the link below: www.marineengine.com/parts/johnson-evinrude-parts.php?year=1981&hp=25&model=J25ECIB&manufacturer=Johnson&section=Cylinder+And+Crankcase

[@stephenmetz2044]

Is this same for 1978 Johnson 25hp. I need to check forward gear and clutch dog. Probably need seal kit. ?

[@thisoldoutboard]

Yes it is

[@billpaden9423]

When removing the brass shift rod bushing. If you use a tap to remove the bushing with a thread rod can you reuse the bushing

[@thisoldoutboard]

Do not use the tap method. See my other videos

[@deerslayer303B]

The top seal (driveshaft) in the kit is much thinner than the original. But in the kit there are two of them. So do you install one on top of the other or just use one of them?? There is enough room to get both of them in there

[@sethmarshall5023]

What did you end up doing if you remember?😂

[@deerslayer303B]

@@sethmarshall5023 I just installed one of the seals. Worked out great.

[@deerslayer303B]

That thicker spaghetti seal is unavailable right now from Amazon. Do you have a source for it elsewhere. Or if you have the roll would you sell me enough to do two lower units?

[@thisoldoutboard]

You can find it on eBay too ebay.to/2m9GUwG

[@deerslayer303B]

@@thisoldoutboard awesome thank you

[@mr.necessary4562]

Do you have to take the whole lower unit off or can I keep engine upright and just unscrew bottom off or will the gears all fall out

[@thisoldoutboard]

You need to take the entire lower unit off

[@mr.necessary4562]

Ok thank you very much

[@robl6570]

Help the 6 screws will not come out even when tapping with screw driver and hammer. Can I heat the housing?

[@thisoldoutboard]

Do what you got to do but be carefull

[@craighall1547]

Try an impact screw driver

[@docholiday9786]

Is this the same process for a 72 evinrude fastwin 18hp?

[@thisoldoutboard]

Doc Holiday yes very similar.

[@docholiday9786]

@@thisoldoutboard thank you

[@timmypugh3850]

Would this be the same for a 1984 25 hp 2 stroke model?

[@thisoldoutboard]

Yes as long as you have the split case skeg style lower unit

[@timmypugh3850]

@@thisoldoutboard thanks for the reply

[@baclieustud]

I just Subscribed, I have the same exact Outboard, and will be doing it myself, Thanks,,btw,,wear gloves especially when prying things, your hand almost got hit by the screwdriver, safety first man.

[@thisoldoutboard]

Safety third! These videos need a little suspense

[@williampassero5917]

I can't seem to find my engine on your seal kit list.... 1983 25hp evinrude.

[@thisoldoutboard]

1983s are different. They don’t have the split case. They use a different procedure

[@thisoldoutboard]

I was wrong. In 85 they went away from the split gear case

[@thisoldoutboard]

Sierra Marine 18-2657 or BRP 396352 is what you need for your 83

[@theamateurangler6890]

That’s my gear head 76 25hp were do I get a gasket set I’m in the uk

[@thisoldoutboard]

eBay? Search marineengine.com to find the part number

[@GR82B1NG]

READ THIS!!! Buy the Brass Bushing Removal Tool using the ebay link "thisoldoutboard" provides on the video! Got a '75 25h.p. and even using the tool--it was a $#@%& to get out! If you have a brass bushing to remove that's as tough as mine was, there's no way around it! In the process I "mushroomed" the striking end of the tool before the bushing even started to move! Do not hammer on the small end! Use a center punch and two 4" sections of angle iron to go between the bushing and housing so you can tap the special tool out of the bushing! This one was a beast, but it's done! Thanks to "thisoldoutboard" for the help. Ultra fast shipping on special tool!

[@hajjihajji5423]

HOW TO CLEAN THE BREAKER OF AN EVINRUDE 25 HP 1975

[@luisz8362]

I know this is like a year old video.. but the removal tool ( 0304514) and install tool (0304515) are hard to find would you plz give the measurements for the tools the removal tool i know has 3 different sizes on the 1 rod and the install is 2 on 1 rod. If you could get those measurement it would be very helpful to get a set made. TIA.

[@thisoldoutboard]

I’ll get you the dimensions this weekend. If you don’t have them by Monday send me another comment as a reminder

[@luisz8362]

Awesome Thanks..

[@luisz8362]

Thanks This should help.. I'ma see if I can get this made by a local machine shop...

[@johnsain3117]

Did you ever get any made

[@luisz8362]

@@johnsain3117 No I didn't the shop around me was asking way to much to make so I ordered the removal tool frm website I think it was crowley marine.

[@kevinricardo7785]

How the hell did all that crap even get in there?