64 Merc 350


Old 10-10-00, 05:55 PM
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motor runs good,after about 2 minutes at half or better throttle it starts to ping.if I throttle back to under half the pinging stops. I use texaco prem and lubrimatic oil at 50:1. boat is 14ft alum,load is about 700# Thanks, J W
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Old 10-11-00, 07:10 PM
BoatMech's Avatar
Join Date: Dec 1999
Location: Los angeles
Posts: 592

Wow, a 1964 35 hp merc ob.
Well it could be a ping.
lets put a timing light on it and
see where your base timing is.
give me the # and ill ck the book.

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