Home › Forum › Ask A Member › 1956 Johnson 30hp, RD-18 › Reply To: 1956 Johnson 30hp, RD-18

#172077
Bob Wight
Participant

    US Member

    I’m not sure what range of compression figures this particular model might typically have, but 105 sounded low especially since the seller says the cylinders have been honed and new rings installed. Suppose it might get better after the new rings get seated better. I’d appreciate any other input anyone can offer on this.

    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."

    • This reply was modified 7 years, 7 months ago by Bob Wight.