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ContinuousWave: Whaler Performance
Old Mercury What year? S/N?
|Author||Topic: Old Mercury What year? S/N?|
posted 05-14-2003 12:28 AM ET (US)
Would like to know what year and find the serial number before I turn it over to a pro to work on. 70HP with blue lettering. i think late 70's to early 80's ...just a guess. Anybody know where the vital markings are on this motor ? Any help appreciated.
posted 05-14-2003 09:28 AM ET (US)
Not an expert opinion, but my 1976 Mercury has blue trim and lettering.
posted 05-14-2003 11:47 PM ET (US)
I've got a '78 Mercury 700...70hp measured at the powerhead back then. I'm certainly no authority on any of this, but maybe something I offer will help you.
1. In my owners manual, it states "Serial Number: The serial number is stamped into the serial number plate on swivel bracket..." The swivel bracket is located just above the Tilt Tube. So, if you stand in the stern of your boat and look where the engine clamps onto the transom, you'll see the swivel tube that allows the engine to "tilt." Just above that should be the serial number plate.
2. Once you have the serial number, you can go to http://www.marineparts.com/partspages/techhelp/TECH15.HTM to cross reference the serial number to the year of your engine.
2. Go to the Reference section of your local library once you determine the engine's year and you should find outboard maintenance and repair manuals (Clymer??)that cover it; mine did and I live in a small town of about 6,000 albeit known as a "fishing villiage" on Puget Sound.
ALSO: I'll be happy to scan whatever materials I have on hand regarding my engine and email them to you if you determine your engine is a 3 Cyl 1978 Mercury 700.
BY THE WAY: My marine mechanic tells me this 25 year old engine "runs like a clock" and "...as well as anything new." I thank the previous owners for the preventive maintenance they gave her.
posted 05-16-2003 02:38 AM ET (US)
Thanks. I'll try looking again. Whalertown told me it was back somewhere near the mounting plate. Didn't see it. Maybe this time. i saw a 50Hp that looked like it on one of those video shows (about pets turning on humans) and it looked just like mine not an old clip either.
posted 05-16-2003 09:33 AM ET (US)
posted 05-16-2003 12:41 PM ET (US)
if it does not say 700 then it is a 79-83 with blue decals.....assuming it is a 3 cyl.
posted 05-17-2003 03:06 PM ET (US)
I don't think it is a 700 because I don't see it anywhere. Where would that be marked ?
posted 05-17-2003 07:09 PM ET (US)
Never left...check in about once a week or so. Just don't usually have anything intelligent or useful to add to the dialogue.
Hope all is well with you.
posted 05-17-2003 07:16 PM ET (US)
Stand 5 feet behind your boat. Look at the engine cowlingeng. You would see
running down the center of the cowling.
posted 05-17-2003 07:18 PM ET (US)
Uhhh, "cowlingeng" would be a variation of the word cowling...at least according to my nimble fingers.
posted 03-19-2006 07:54 PM ET (US)
Hi, I know this is an old post, but I was going through the same thing as the original poster. Using everyones advice I determined my boat's engine to be a Merc 700 1978. This is my first boat and it was the best i could afford for the time being. The engine however is in need of some work.
I noticed NWflyfisher, that you have the same motor! I was wondering if your offer to scan the information you have on the motor is still on the table? Again, i know this is an old post, but I figured i'd atleast try....
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