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    Hood Gasket

    Anyone replaced the gasket around the bottom of the hood on a late 70's 70HP? The original was held on with things that look like big staples. We have pried them off and removed the old gasket and have the new one on but wondered if it was best to try to duplicate the original means of holding...
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    ignition switch part number

    How do I find out what this is ? 87-63468A1 If I search the # I come up with an ignition switch but how do I tell what it is supposed to work with? IE - years, and I/O vs Outboard etc? If it will work with my old mid 70's 165 inline 6 then I will try to buy it. It is advertised locally. I...
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    165 6 cylinder closed cooling?

    Anyone out there have a 165 HP inline 6 with the closed cooling system that had the vertical cylinder heat exchanger mounted on the starboard side? Randy
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    Filling the hole on an OMC to Mercruiser conversion?

    Are there any threads on here dealing with rebuilding a transom to swap an OMC stringer to a Mercruiser? I have a boat that I would like to hang onto but do not wish to put money into the old OMC stringer. I have had quotes of $4K or $5K to do the job and I don't think I want to dig that deep so...
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    Prop theory?

    So, can a boat be properly set up with a propeller for whatever engine? As a theoretical example, what if one wanted to install a lower horsepower diesel engine into a boat that previously had a V8 gas motor? If we go from 200 HP to about 75 HP is it possible to change a propeller sufficiently...
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    old Volvos

    Is there a chart somewhere that gives some clue as to what model of Volvo was available in what year? I am going to try to go and look at a boat with an inline 6 Volvo engine and outdrive. The ad says dual carbs. Just wonder what I might be getting into? I don't really want the boat but I...
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    You have to see this

    Not sure if this is the right category but you have to see this. I have to say this is the ultimate "non-repair of an I/O". Randy http://winnipeg.kijiji.ca/c-cars-vehicles-boats-watercraft-powerboats-motorboats-18-ft-Glastron-Boat-W0QQAdIdZ317930060
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    Intermediate Housing Question 800 drive

    Is there any difference between the intermediate housings used on Ford vs GM V8 engines? Looking at the exploded view diagrams on the net would lead me to believe they are likely the same. Anyone know for sure? I have a boat with the 800 drive and a 305 Chevy engine that I am parting out. I...
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    OMC 800 drive?

    Is there any way one can check the outdrive to ensure it will shift into forward and reverse without it being on the boat and running? The manual suggests one should not shift the drive without the engine running. So, how would you tell if a used drive was good to buy? Would you have to install...
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    Oil filter?

    What are you folks using for oil filters? I was reading through the manual on the weekend and note that MerCruiser says NOT to use automotive filters. Do you all buy filters from Mercury? This relates to an old 165 HP inline 6.
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    Distributor?

    I just picked up another boat - 1981 with a small block Chevy engine and an OMC 800 outdrive. The engine has a GM HEI distributor with the coil in cap - and a vacuum advance diaphragm that is hooked up to the 2 bbl carb with a rubber hose. I am assuming this is automotive and not original and...
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    copper fuel line?

    A previous owner has installed a fuel tank in the bow of my old Lund with the 165 HP Mercruiser. It appears to have rubber fuel line all of the way back to a selector valve on the inside of the transom that switches between that tank and the two on either side at the stern. My feeling is that it...
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    1969 200 HP Inline 6 Mercruiser?

    Anyone have any experience with the 292 cid engine? I think that Mercruiser only used this engine for about one year. Not much difference between the 250 and the 292 blocks except the 292 has a taller deck height and the right side motor mount is in a different spot. Anyone tried a swap to an...
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    Manuals Question

    Are there add ons to the Mercruiser manuals with parts lists with numbers and exploded diagrams of assemblies? If so, are there any available for download? Momentarily, I am interested in the one that would go with Manual #2 relating to the 165 HP inline 6 Mercruiser with the I drive. Randy
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    Manual?

    So, how do I tell which Manual I need? Looking for serial numbers won't work as the boat is about 175 miles away buried in snow and waiting for spring. To the best of my knowledge it is a 1978 Lund with a 165 Mercruiser inline 6. Randy Edit - a bit of looking on iboats tells me it is likely...
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    Show Your Lund!!!!!!!!!!!!!

    Re: Show Your Lund!!!!!!!!!!!!! I picked this one up last fall. 20 footer with a 165 Mercruiser. Everything wooden is rotten but it appears to be fixable. Randy EDIT - based upon some quick online research here on iboats it is most likely a 1977 Tyee Offshore BR
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    2 stroke oil mixtures

    So, I guess I am getting old because I recall when outboard motors used a mixture of about 16 to 1. Now we are told that we can run 50 to 1 mixtures in the same engines. I assume that the quality of the oil is better and that is why we can reduce the quantity. Am I right? Anyone with opinions on...
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    Stringers

    OK, so I know most of you are not fans of the old OMC stringers but, I have 2 of them and have been offered a third. My existing ones are a 72 225Hp in a 22' Slickcraft glass boat and a 74 140HP in an 18' Starcraft aluminum boat. The one I have been offered is newer and not the electric shift...
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    Leaded vs Unleaded Fuel

    Just noticed a sticker on the side of Mercruiser 165 inline 6 that says to use leaded fuel. Anyone experience any issues with using unleaded fuel in these old engines? Randy
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    Mercruiser gauges

    How do I find out what a certain part # is intended for? 63780 A1 is the number - a gauge package for a Mercruiser but how do I tell if it is intended for a 4, 6, or 8 cylinder? Or - are they adjustable so that it should work with any # of cylinders? Randy
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