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  1. M

    mercruiser 305 5.0

    ok fellas. just purchased a 89 Larson 215 sport cruiser. ive already fixed a few issues and onto the last one. the problem is according to tach. not sure how accurate once you get up to around 37 3800 rpm it just falls on its face. bogs down. you back out of her a hair runs smooth as a sewing...
  2. M

    fuel pump

    hey guys. have a 89 Larson dc 215. I need a fuel pump for it. has a v8 gm 305 with a 4bb on it. don't have old part off yet so I don't have any numbers yet. thinking a sierra brand or carter. does anybody have any part numbers for this
  3. M

    wiring diagram. 1989 larson 215 sport cruiser. freshwater 12 v pump

    hey guys just acquired this 1989 Larson 215 cruiser. I am trying to figure out the wiring for the freshwater pump. I know it just takes 12 v and a ground to make it run but trying to trace original wiring. I found that the switch above the faucet was bad so jumped it and now have 10 v to pump...
  4. M

    Bow wiring cuddy cabin

    Hey guys I got a question. I have a 1989 larson dc 215 sportcruiser. The trumpet horn on the bow took a crap. The thing is it's been replaced before and the wires are barely long enough coming out of bow. Can't see them from cuddy cause of carpet. Anybody have a idea on getting wires out from...
  5. M

    Alpha one bellows install

    Ok got my gimbal ring replaced and new gimbal bearing installed. Ready to install bellows and shift cable. Should I clamp bellows first on bellhousing or on transom. Should I hook water pickup hose up first then u joint bellows or bellows first then water pickup. Also on the shift cable do i...
  6. M

    Alpha 1 gimble ring pinch bolts

    So I replaced my gimble ring today. Of course I had to drill holes up top to get to steering shaft and stuff. Anyways I thought I put the pinch bolts in the right way with nut on inside but damn bolt hits gimbal housing. I wish I would have put bolt facing out. Guess I will try to find some...
  7. M

    Gimbal ring and steering arm

    Replacing gimbal ring. I have old one off but noticed two washers in cavity for steering pin. Not sure if one washer goes below arm and other washer goes above. Does anybody know where the washers go
  8. M

    84 mark twain 190 v sonic closed bow

    Hey guys. 2 years ago I bought this boat. She runs like a sewing machine. Anyways the rear of the deck is rotted out and I'm really thinking about redecking it. So my question is what type of quality are these boats from this era. Are the stringers all fiberglassed in good and etc. So I know...
  9. M

    Merccruiser 898 thermostat

    Ok so I went to replace my thermostat. Old one came out in pieces. I took the top cover off and there is a brass insert in there. My new thermostat would not fit down into the brass insert. The thermostat is suppose to fit in there isn't it.
  10. M

    Help impeller replacement

    Ok got my new impeller in the housing and dumb me turned the shaft without it bolted down and it popped out now I can't remember which way the fins were suppose to point. I think I have it right. With the housing flipped over I have all the fins pointing in a clockwise direction. Is this...
  11. M

    Control questions

    So my control box is worn out. My vessel is a 84 Mark Twain 305 cubic inch engine 898. I was wanting to put a dual lever control in her one for throttle and one for shift. Preferably one that even has trim switched on it. Anybody have any links to a control box like this or a link for a control
  12. M

    Just a few questions on my drive

    Ok guys got my lower unit pulled off my upper today. My upper is indeed a alpha and my lower unit is indeed a old r model. It has the preload pin on top of the shaft. Ok first question is is that preload pin on the shaft supposed to push in real easy. I can't push it in. Second question is on my...
  13. M

    Replacing impeller

    Hey fellows. Got my outdrive off for a engine alignment. Also ordered a new impeller kit. Question is should I pull the lower half of the drive off while it's off the boat or put it back on the boat then pull the lower half
  14. M

    Greasing gimbal bearing

    I was wondering how you guys grease your gimbal bearing before throwing your drive in
  15. M

    Parts needed

    Hey guys. Does anybody know what the part number would be for a thermostat for a 305. It is out of a 84 Mark Twain. Also need the alpha upper housing gasket kit. Had to pull drive off to make sure alignment was good
  16. M

    Starboard motor mount stud nut

    Hey guys. I noticed my Starboard motor mount nut was loose and backed off alot. Not sure if the bottom nut moved down or top nut moved up. I've been researching and they say you should check your alignment. How do you do that. Pull the drive and take that bar and stick in through the gimbal and...
  17. M

    Alpha one with older r model lower

    Ok I have confirmed my upper drive is a alpha. However I am not sure my lower is. Does a older pre alpha lower fit onto a alpha upper. My reason for this is my cavitation plate is definately rounded. Not squared. But on the shaft going to the prop it is definately stamped with a A. Amy ideas.
  18. M

    Merccruiser 898

    Hey guys. Bought a 1984 Mark Twain sonic. It's a 19 footer with a 305 Chevy 2bbl in it. I got a question about my drive. It says 898 on the drive. After looking and researching I believe it is supposed to have a alpha gen 1 drive. My question is is 898 my drive model number or is this a alpha drive.
  19. M

    restoration of 1956 16 ft sea king

    i was wondering if there was anyway to convert a outboard boat to a inboard. i would like to take a car engine and put in the boat. i will post pictures later. thanks
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