Reply To: Winter Project 1957 Johnson Javelin

[Jeff Barsch]

Don wrote:

Replacing just one half of the gear housing is a big risk, especially on a higher HP engine like this one…

Great news!!  I was able to source a new lower unit locally today.  On to the reseal!

David Stanton wrote:

My Sierra catalog shows a new impeller beginning in 1958.  Your golden javelin is a 1957. 1951-1957 is Sierra 18-3006, OMC 378891, superceded by 775521 1958 -1970 is 18-3083 OMC 377230, superceded by 777213

Thanks for the part numbers Dave!

I guess I am still wondering if anyone has experienced the loss of seal mentioned in the service bulletin that resulted in them revising the pump housing design.  If it happens, I suspect the motor may overheat?  When I look on marine engine you can still buy the old style pump housing but there is no mention of the new style nor is it listed as a superseded part number so I wonder if the new pump design didn’t actually work better?

1954 Evinrude 7.5 HP
1954 Evinrude 15 HP
1954 Gale 12 HP
1955 Johnson 10 HP
1956 Johnson 10 HP
1956 Gale 12 HP
1956 Evinrude 5.5 HP
1957 Johnson Golden Javelin 35
1958 Johnson 7.5
1960 Evinrude 18 HP
1973 Johnson 6 HP