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    MC-1 Shift Lever

    Should there be some sort of bushing for the shift lever to pivot in in an MC-1? My housing has what appears to be a stainless steel sleeve for the shaft to pivot in but there is a whole lot of slop in it. It doesn't appear to be worn, nor does the shaft itself. Looking through the manuals it...
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    Upper Unit Drive Shaft Seal Replacement, MC-1

    Gradually, I'm getting to the bottom of my MC-1's issues. The next one I need to sort out is an oil leak from the upper unit drive shaft seal. Reading through the manual it looks like there are two seals together which I would be replacing? The manual goes on to say that the entire top box has...
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    MC-1 No Reverse

    Today when I was coming into the wharf after a mornings boating I was attempting to maneuver in to tie up when all of a sudden I was unable to select reverse. As I shifted the lever rearwards all I got was more throttle, while the drive stayed in forward gear. A few very anxious moments...
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    Anodes on trim tabs?

    Hi My boat is fiberglass with a Mercruiser outdrive and stainless steel trim tabs. Along with the anodes on the outdrive, I was wondering whether I should install zinc anodes on the trim tabs as well? I've seen this on some other boats, yet most don't. Interestingly, the hinge pin of the tabs...
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    MC-1 to Alpha 1 Conversion

    In pursuit to fix my woes with my leaking MC1, and as a general upgrade I have the opportunity to buy a 1996 model Alpha 1 which was mated to a 5.7 Liter engine. Questions: is this an easy swap? I understand that the transom assemblies are similar enough to allow the Alpha to be bolted to the...
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    Remote drive oil tank- MC1

    I would like to install a remote gear oil tank in my MC-1 drive. Can this be done? With one of these? Alpha SEI Mercruiser Oil Tank Reservoir Kit | eBay Any 'gotcha's' with installing one of these, or a similar system? Thanks.
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    Gear oil leak, MC-1

    A week or so ago I discovered a small puddle of gear oil on the ground under my MC-1, appearing from around the prop exhaust area. In the twenty engine hours prior it has had the pump and associated seals replaced, as well as the lower shift shaft seal. Local mechanic suspected a leak from the...
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    MC-1 to Alpha upper / lower compatibility

    Hi I have a 1982 MC-1 drive with 1.5 ratio gearing. Can an Alpha 1 Gen 1 or Gen 2 lower gear box be mated to the MC-1 upper? Is there anything that needs to be considered with regards to gear ratio campatability, ie I understand that the final ratio of 1.5 is achieved through both the top AND...
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    305ci / 228hp hard starting

    Hi all My 1982 Mercruiser 228 has developed a tendency to be hard starting between useages. It starts absolutely fine all day once the initial start has made, but if the boat as not been used for a day of more I find that I have to keep it cranking for a good 15-20 seconds before it will fire...
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    Increasing MC-1 trim range

    Hi I would like to increase the amount of 'in' trim range on my MC1, ie get the leg to tuck in more to get increased nose down force. Currently, at full down trim the leg is still in an almost vertical position. The trim rams appear to be going to their normal position, ie stopping at the paint...
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    Swapping GM petrol engine for a diesel

    Just considering future options here, but if I were to swap my Mercruiser 228 engine for a marinized Toyota diesel engine (or similar), how would I get on with shifting gear on my MC1 drive assuming that the shift interrupt will no longer function? Any other "gotcha's" when it comes to swapping...
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    Adjusting throttle / shift play

    1982(ish) Mercruiser 228 / MC-1 I've done about eight hours now on my boat since installing a new lower shift cable. There seems to be what I consider an excessive amount of throw required in the throttle lever once the gear in engaged (either forwards or backwards), before the throttle picks...
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    Mercruiser R anodes and bonding straps

    Looking through my Mercruiser service manual there is reference to there being a replaceable anode attached on, or under the hydraulic manifold on the gimbal housing. My out drive currently does not have one of these anodes installed and I'm wondering whether the early ones never ad these, and /...
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    Unleaded fuel, and fuel additives in a 305

    Ok, here's a question which two mechanics have given me contradicting answers to; I have a 1983 Mercruiser 228 (GM 305) and I am wondering whether or not I should be using some sort of fuel additive with unleaded fuel to guard against such things as valve seat recession, etc? Would this engine...
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    Lower gear case tick in neutral

    While flushing my Mercruiser 228 / R out drive today I noticed an occasional clicking noise which seemed to be coming from the lower gear box. This is only the second time I've used the boat since buying it a few months ago and working on it since.The drive has just been off to replace shift...
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    Lower gearbox oil leak - Merc 'R'

    Hi Having just got my new-to-me boat up and running after being inactive for over twelve years I have discovered an oil leak from what appears to be from around the prop shaft leading from the lower gear case (Mercruiser R leg). Since getting the boat going a couple of weeks ago I have only...
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    Flushing raw-water cooling system while still in water

    Hi Is there some relatively simple way to flush a raw water cooled Mercruiser 228 / R leg while the boat is still on the water? I guess one way would be to perform some level of acrobatics and lean over the back and try and slip on a set of flush muffs and hose but that would be extremely...
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    Mercruiser 228 running too cold

    Hi I have just finished replacing the manifolds and risers on my newly acquired boat which has a 305 small block 228hp Mercruiser. When I bought the boat, the engine had the original 'log style' manifolds with rear exit risers. I was advised to replace these due their age with newer style center...
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    Mercruiser 228 / Chev 305 Oil Capacity

    Hi. I have a simple question, but one which I don't seem to be able to find the answer to... After draining the oil through the dipstick and changing the filter how much oil would normally be required to refil the sump?
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    Tanaka / TAS / TOB 2.5 Manuals

    Hi Does anyone have a link to a downloadable owners manual or service manual for these outboards? I've just acquired one of these motors to use on my tender and would like to give it a bit of a tune up. Thanks
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