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    Intermediate Shift Shaft

    Is it necessary to install the intermediate shift shaft in the Alpha series drives with the retaining split pin and washer? Once the drive is installed there really isn't any way for the shaft to fall out. The reason I ask is I'm wanting to swap the shafts between my SEI and MC1 drive and if the...
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    Rochester Quadrajet filter

    Looking at replacement carb filters on the net I see that there is an option for a filter with a built in check valve to stop the bowl from draining between uses, is this suitable for marine use or will it cause too much restriction at the higher RPM that marine engines run at? My engine does...
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    Refinishing oiled teak with a varnish?

    Re: Refinishing oiled teak with a varnish? Sorry its not the greatest photo but I'm away with work at the moment and this is the only one i have on my iPad which kinda shows some of the woodwork in my boat. The main area I want to refinish is the locker which goes the full width across the back...
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    Refinishing oiled teak with a varnish?

    My boat has a lot of teak cabinetry and trim, both interior and exterior, which is looking pretty weathered. It has previously been oiled but I'm wondering whether it would now be possible to somehow re-do it with some sort of varnish (using the very generic term:-) such as these new aliphatic...
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    another exhaust log to center riser question

    Re: another exhaust log to center riser question Thanks. Don't tell my wife but I swung by the boat on the way to picking her up from the hospital and took a photo :-) My manifolds are the regular non-dry joint style so I'm not sure how the plumbing will differ on your setup, but as you can...
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    Setting trim tab angle

    I understand that the purpose of the trim tab anode found on most sterndrives and outboards is, along with combatting corrosion, to offset torque generated by the turning prop. This was very evident on my fathers boat when he first bought it; the tab on the Yamaha 140 was set straight and the...
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    MC-1 Oil Seal Question

    I've just finished replacing the upper shaft seals and the oil seal on the drive shaft in the upper unit of my old MC-1 as they were leaking oil on the ground when on the boat, and confirmed by pressure test. When I disassembled the upper drive I discovered a surprising and disappointing amount...
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    Bell housing O-ring- glue or no glue?

    Should the large rubber O-ring that is inserted into the bell housing for the outdrive to seal up against ( not the water passage O-ring) be installed with bellows adhesive or left dry? If it should be glued, is there an alternative to bellows adhesive that can be used?
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    New SEI 106 outdrive; occasional difficulty coming out of gear.

    A few days ago I installed my new SE106 drive, replacing my MC-1. When I assembled the two halves together I found that the intermediate shift shaft could not be aligned exactly straight ahead on the lower shift shaft, ie the "foot" of the brass intermediate shaft was cocked off slightly in the...
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    MC-1 Shift Lever

    Re: MC-1 Shift Lever
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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

    Re: Increasing MC-1 trim range Ok, hopefully I have managed to successfully attach a photo of my transom and drive? As the photo clearly shows I was a little over zealous when i stated that my transom was vertical! Clearly it isnt :-). The drive is pictured fully down / in, which when i look...
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