Replace Lower Crank Seal on 1957 Johnson 35HP?

[The red boat]

that is extremely helpful.
I’ve never split the case on one of these motors. Is there anything I should be wary of or any tricks I need to know?

[Buccaneer]

You need to take the reed cover off to access the two big 3/8″ hex (allen) head center bolts.
There’s one small machine bolt in the center of the reed plate that must be removed.
The two dowel alignment pins in the case “tap out” forward…. toward the front of the
engine that is.

Prepare to be boarded!

• This reply was modified 5 years, 9 months ago by Buccaneer.

[olcah]

I don’t know if you have a shop manual for this motor. I use the “Johnson Manual to 1964.” It is about 600 pages and covers a lot of 1940s and especially 1950s motors. I got mine by copying one I borrowed. If I had to do it again I would look for a complete printed copy. Not inexpensive but very very useful if you plan to enjoy this hobby I think EDE in the Club offered some for sale awhile back. There are online copies too but I think they are difficult to read. Other Members can steer you to one.

• This reply was modified 5 years, 9 months ago by olcah. Reason: Dowel pins are already described in post above

[Ghost_n_the_shell]

Bob Wight wrote:

As Frank noted, you will also have to change the lower crank bearing for this swap. You can find all of these parts at Marineengine.com or search on Ebay for NOS or used parts. You should probably try to find a new crank bearing but a used carbon seal, spring, washers, retaining clip should be OK, but install a new quad ring in the carbon seal.

Hey sorry to bump this again, I am looking to order parts in somewhat of a time deadline.

What part number from the diagram is the lower main bearing?

[Bob Wight]

In the attached parts diagram, the lower crank bearing is #11.   OMC part #375763.  You can find this bearing at a much lower price than here on Marine Engine – lots of new old stock bearings available on Ebay.

https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1957&hp=35&model=RD-19&manufacturer=Johnson&section=CRANKSHAFT+GROUP

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."

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Ghost_n_the_shell

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