John's Old Mercury Q&A Board
Mark 75 endurance video
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Mark 75 endurance video
by FingerlakesKid » Mon Jan 25, 2010 4:32 am
I'm sure that most of you have seen this video about Mercury's famous 50,000 mile endurance test but in case you haven't here's the link. What a great piece of outboard history. http://vimeo.com/5370345 Enjoy! Stan
"Better to remain silent and be thought a fool than to speak out and remove all doubt. " Mark Twain
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Re: Mark 75 endurance video
by Fastjeff » Mon Jan 25, 2010 2:00 pm
Note the burnt and blackened driveshaft housing/towers? Interesting. Per "Iron Fist" old Carl cheated like crazy, taking the USAC dupes to supper wile his guys changed out entire power heads. Also noted where, in the second 25K run, they made (unshown) pit stops to "adjust the distributors" (change points?) and regap/ change plugs.
Still, a really neat video! Note that none of the drivers or crewmen wore a life preserver doing those hazardous transfers.
Jeff
Still, a really neat video! Note that none of the drivers or crewmen wore a life preserver doing those hazardous transfers.
Jeff
Sign on a drag boat: "Hold my beer and watch this!"
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Re: Mark 75 endurance video
by AllanF » Mon Jan 25, 2010 3:38 pm
Great stuff! The pistons are all black as well - coulda used a shot of engine cleaner 
AllanF
AllanF
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Re: Mark 75 endurance video
by Toby Hall » Mon Jan 25, 2010 4:40 pm
That looks like Bob Walwork eating breakfast and driving some during the second 25000 miles. He ended up building the Raveau boats a little later on. I wonder what ever became of those boats anyway? hmmmm....I'm going to need a new project pretty soon! Long live Mercurys...Long live Raveau! 
"Outside of a dog - a book is man's best friend. Inside of a dog - it's too dark to read." Groucho
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Re: Mark 75 endurance video
by LarryR » Mon Jan 25, 2010 7:12 pm
The pistons are all black as well - coulda used a shot of engine cleaner
Power Tune wasn't out yet.
likta know what they used for fuel.
likta know what the oil mix ratio was.
Charlie, where are you??
Power Tune wasn't out yet.
likta know what they used for fuel.
likta know what the oil mix ratio was.
Charlie, where are you??
LarryR
Lake Horace, NH & Merrymeeting Bay, ME
Lake Horace, NH & Merrymeeting Bay, ME
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Re: Mark 75 endurance video
by AllanF » Mon Jan 25, 2010 9:29 pm
Power Tune wasn't out yet.
I was thinking Quicksilver Engine Cleaner. It was available in the 60's - not sure about in 1957. Great stuff for carbon removal/carb cleaning and after "baptizing a motor"(not that it ever happened to me...)
. Too bad they stopped making it 
AllanF
I was thinking Quicksilver Engine Cleaner. It was available in the 60's - not sure about in 1957. Great stuff for carbon removal/carb cleaning and after "baptizing a motor"(not that it ever happened to me...)
. Too bad they stopped making it AllanF
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Re: Mark 75 endurance video
by Conrad » Tue Feb 16, 2010 12:36 am
Larry,
In the vid somewhre they mention unleaded amaco gas with 20-1 quicksilver oil.
nearly 8 mpg at 30 mph.
Conrad
In the vid somewhre they mention unleaded amaco gas with 20-1 quicksilver oil.
nearly 8 mpg at 30 mph.
Conrad
1974 1500L, 1975 1500SJ, 1969 1250S, 1966 1100S, 1965 900S, 1960 700DRS, 1958 MK78, 1957 MK 75, 1965 650, 1961 500S, 1957 MK 55, 1955 MK55, MK5, MK6a, K1
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Re: Mark 75 endurance video
by LarryR » Tue Feb 16, 2010 12:34 pm
I used Amoco high test in my early outboarding days, from 1960 to 1965.
At the first of this I would have to hitch hike with two 5-gal pails 4-miles & back to pay $.379/gallon ($1.90/pail)
Shell was .299 and .339 in town - I don't the think prices varied at all during that timeframe.
It would be interesting to know what Amoco used for knock-inhibitors at that time.
It was obviosly something a lot more stable than the early lead substitute of the 70s.
I bellieve that Texaco sold a similar product in different parts of th US, but not in Maine.
At the first of this I would have to hitch hike with two 5-gal pails 4-miles & back to pay $.379/gallon ($1.90/pail)
Shell was .299 and .339 in town - I don't the think prices varied at all during that timeframe.
It would be interesting to know what Amoco used for knock-inhibitors at that time.
It was obviosly something a lot more stable than the early lead substitute of the 70s.
I bellieve that Texaco sold a similar product in different parts of th US, but not in Maine.
LarryR
Lake Horace, NH & Merrymeeting Bay, ME
Lake Horace, NH & Merrymeeting Bay, ME
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