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  1. R

    inline 6 transplant from 1969 to 1982

    I'm getting ready to take my 1969 mc160 out of my '69 Thunderbird Formula 233, and replace the entire lock, stock and barrel from a 1982 donor mc165. I'm tired of seeing 'obsolete' beside everything on my shopping lists, and this seems like a logical next step. Please point out any concerns or...
  2. R

    Rootcausing Mercruiser 165 milkshake - What's to check first, and who's to blame???

    Hey- My 1969 (ok, so it's actually the MC160, not 165) inline 6 showed me a chocolate milkshake the other day after a ride on the lake. I changed the oil, and ran it again on the hose, and it's got a little bit of water showing, but not a really nasty leak. It's my understanding that...
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    collective list of lower end knock sounds in mc165 inline 6

    I think I'm gonna change my handle to inline_6_knocker. I have 3 inline 6s - all have or do knock at one time or another. Taking advantage of the fantastic collective experience on this forum, I'd like to make a short list of possibilities, and their troubleshooting steps. 1-fuel pump- it...
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    MC165 into MC200! How hard is this, REALLY?

    All, Allright, many of you have the deadnuts, super-reliable, torquey, but PERFOMANCE-PROOF(in marine form) 250CI, inline 6, stovebolt chevy MC165. Some of you know that the same motor came in another version- the venerable 292, and Mercruiser made it available for a single year in 1969...
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    Need WOT RPM, and recommended pitch prop for 1969 160 mercruiser in formula 233

    Hello, I have a 1969 Formula 233 with a single 160hp inline 6. I can't seem to bring it above 2900 RPM. Before I start blaming my tach or ignition, or something else-can someone tell me how to find what RPM I should be running at WOT? Also, what prop should I be using? Thanks. Paul
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    Intermittent "knock" in 1969 mercruiser 160 inline six

    Hello, I have a 1969 mercruiser 160. I took it out for the first time this year yesterday. The motor runs like a top. After about 40 minutes into a ride, at about 2500rpm the motor started making a "knocking" sound. I shut it down immediately. I looked at the oil for water or gas...
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