not outboard but collector item, help

[jeff-register]

1970 Toyoda Land Cruiser, Anyone know if the original straight 6 cylinder motor had hardened exhaust seats for unleaded fuel or were leaded fuel type?

The japanese WW-2  Zero fighter airplane was air cooled aluminum block & hardened seats for the exhaust valves. The Cruiser enging was designed after the Chevy 6 cylinder, but built light years better including redesigned cylinder head. I’ve never seen a head bolt untorquing sequence in any USA cars. The Cruiser shows that! Found a 1970 original ebgine manual. Very intersting to learn from.

P.S. I just aquiredd a 1970 Toyota cruiser, sat for 25 years. Correct spelling was ToyoDa, changed  to ToyoTa to be more western sounding & yes Toyota made outboards.

[Bob Wight]

The 1970 engine did not have hardened valve seats – I think they first came factory standard in 1975 when unleaded fuel was first mandated.

Bob

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

“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."

[jeff-register]

Bob,

Thanks so much. Another guy said in 73 in Japan. Time to pull the head. After 25 years it’s time anyway.

:>) !! This site has been so good to me, I hope I can give back with my elecctrical  & limited outboard knowledge.

[Author]

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