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  1. 1

    lower shift cable

    My 1977 470 needs a lower shift cable because it has been quitting when you go into reverse. I lubed the cable best i could and now it seems to work. My question is I thought I read somewhere on this forum that you should only use a genuine mercruiser cable, not an aftermarket one. Are there...
  2. 1

    trim won't go up

    Well I finally got my outdrive reinstalled on my old boat with a little motivation from a rubber mallet! Now I have a totally new issue that I have never had any troubles once so ever with. The trim will go down wite ease but it struggles and labors the pump pretty hard when I go up. The trim...
  3. 1

    mc1 outdrive install

    Tried to install my first mc1 outdrive tonight and I finally quit before I broke anything. I had it very close to going but it just wouldn't go. The splines were engaged and im very confident the shifter shaft was also engaged. I made sure everything was in forward and i could kinda feel the...
  4. 1

    shift shaft question

    I have another question on my mc1 outdrive. I replaced the shift shaft bushing assy. and i forgot to hold the shift shaft down when I removed the bushing and the shift shaft disconnected with the shift crank. I installed the shift shaft and it went back into place with the shift crank. Does...
  5. 1

    mc1 drive

    I am installing a seal kit in my 1977 470 outdrive and I was wondering what direction the springs on the seals should be for the upper drive shaft unit. The upper bigger seal part #26-32511 is installed with the spring facing up, but im not sure about the smaller lower seal part #26-965031 if...
  6. 1

    shifter shaft bushing

    I have my outdrive torn apart to fix a few problems and I discovered that my intermediate shifter shaft bushing seems quite worn. The odd part to me is that the shaft is not worn at all but it fits very loose in the bushing and I wouldn't think that the bushing would wear that much with no wear...
  7. 1

    keel protector

    I have a 1977 silverline nantucket and I was interested in a keel protector. It is a really nice old boat and I do beach it quite a bit on a river bottom lake that has quite a few small rocks on the beaches. Its a 17' v hull but i am worried about the rollers on the shorelander trailer ripping...
  8. 1

    1977 outdrive

    I removed my outdrive this winter to inspect the water pump in the lower unit and I discovered that the u-joint appear to be oily. I assume there is a seal for the input shaft for the drive that needs replaced. The boat has 487 hrs on it and i was wondering about preventative maintenance, like...
  9. 1

    vinyl seat repair

    I have a 1977 silverline nantucket and the vinyl seats are in really nice shape, but they are beginning to crack on the top from people sitting on the top of the seat to see over the windshield. I would love to find something to prevent the seats from getting worse and save the originality...
  10. 1

    aluminum head

    Has anyone ever replaced the stock 470 head with an aluminum 460 ford head. Is the 470 head special or will a ford head bolt right on without any modifications?
  11. 1

    service manual

    Ive got a 1977 merc outdrive serial #4680382 and was looking for the correct service manual for this drive. Thanks
  12. 1

    200 hp 470

    I wouldn't mind getting a little more power out of my 470 does anyone have any suggestions? The engine runs great so I don't want to bore it bigger, but i would consider a new cam or bolt on parts. Thanks
  13. 1

    470 short term freeze protection

    I have a 1977 470 merc with a closed cooling system. The weather man is predicting 29 degrees F tomorrow night. I plan on using the boat for at least 3 more weeks unless the weather turns real nasty on me. I have a good idea about winterizing for the entire winter, but I would like things not...
  14. 1

    2bbl to 4bbl

    Has anyone converted a 470 from a 2bbl and put on a 4bbl. Just curious i guess i think its supposed to add another 15 hp and use more fuel im sure.
  15. 1

    keel protector

    I was at cabellas checking out keel protectors which i would like because i beach my old boat and the keel is in really nice shape. The only problem I have is that my heavy hauler trailer is a roller type which can damage or remove the keel protector. I trailer my boat to the water so it gets...
  16. 1

    trim solenoid

    My 1977 mercruiser 470 needs a new trim solenoid. I was wondering if anyone had a Napa or carquest part # for a solenoid that would work. It looks like its a 4 wire solenoid 2 big wires and 2 little ones. Thanks
  17. 1

    trim

    The other day my 1977 470 merc would not trim up it would only trim down. I finally jumped two terminals on the trim solenoid and got it to go up to load it on the trailer. After I jumped the terminals on the soleniod than the trim switches worked. Im not sure how this system works...
  18. 1

    1977 silvereline fuel tank leak

    I have a 1977 silverline nantucket 17 foot boat with a closed bow. The fuel tank is under the bow. I was wondering if anyone has removed their tank or had theirs leak. One day it didn't leak and today it leaks pretty badly. Thanks
  19. 1

    fuel filter

    I have a 1977 470 with a fuel filter mounted on top of the fuel pump. It is a cartridge type filter with a metal canister surrounding it. I would like to get this filter locally at a NAPA store and was wondering if anyone had the NAPA part # handy. 30435S was stamped into the filter if this...
  20. 1

    vapor lock question

    My 470 is hard starting hot with the engine cover installed. If you run the boat with the cover removed I don't have much trouble with hot starting. The engine has a closed cooling system which looks like it runs coolant through the intake to cool it I am guessing. Does this sound like a...
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