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  1. Eric 3.7LX Alpha 1

    Mercruiser alpha one stern drive gear ratio loading issue

    Re: Mercruiser alpha one stern drive gear ratio loading issue That drive was wrong for the last motor you had as well:
  2. Eric 3.7LX Alpha 1

    Pre-load pin on driveshaft?

    Re: Pre-load pin on driveshaft?
  3. Eric 3.7LX Alpha 1

    Merc 470 oil in sump

    Re: Merc 470 oil in sump The engine pump circulates coolant. The drive impeller circulates seawater. Pic of the weep hole: Flow diagram for our engine: http://i777.photobucket.com/albums/yy59/solar7647_album/coolantflow.png
  4. Eric 3.7LX Alpha 1

    1989 Wellcraft 5.7L Was running......NOT NOW HELP GUYS

    Re: 1989 Wellcraft 5.7L Was running......NOT NOW HELP GUYS
  5. Eric 3.7LX Alpha 1

    Help outdrive question

    Re: Help outdrive question The drive ratio for your 898 is shown in the chart below: You can try and find a used one, there's always the possibility it will have issues. Or, you can go New: Mercruiser Stern Drive Complete Drive Assembly - iboats.com
  6. Eric 3.7LX Alpha 1

    Ordering upper shift cable

    Re: Ordering upper shift cable Yes you need to measure the length of the cable and also want to get the correct ends for it. The engine ends are the same I believe the helm ends may differ. Look at yours and the one I have a picture of... which I believe should be the style you need...
  7. Eric 3.7LX Alpha 1

    Mercruiser R drive question

    Re: Mercruiser R drive question No it doesn't belong there.... looks like the O-ring that Mercruiser omitted on later drives. The O-ring is installed in the groove on the shaft of the lower half, just below the splines at the top.... which runs thru those seals.. see attached photo of the...
  8. Eric 3.7LX Alpha 1

    170 Alternator conversion

    Re: 170 Alternator conversion Try this: I copied the brackets in this conversion for sale on Ebay..... Worked perfect, used a piece of string to get the belt length, and bought a spare. Sorry the picture is so small... here is the link to the one for sale...
  9. Eric 3.7LX Alpha 1

    Need help on how to back flush alpha one gen one

    Re: Need help on how to back flush alpha one gen one If that hose your referring to is a larger diameter, many times a spring is installed in the hose from the factory so the hose won't collapse when it gets hot. The spring doesn't effect flow at all. When you pull off your outdrive, you'll...
  10. Eric 3.7LX Alpha 1

    Help with wiring on a 170

    Re: Help with wiring on a 170
  11. Eric 3.7LX Alpha 1

    Alpha 1 Gen 1 Water Pump Problem!

    Re: Alpha 1 Gen 1 Water Pump Problem! Here are the two choices:
  12. Eric 3.7LX Alpha 1

    totally confused

    Re: totally confused If both purple wires went to the same terminal before, then yes they both need to go to the same terminal again. If you have screws on the switch can you put a ring terminal on each or both in one ring terminal and attach to the screw?
  13. Eric 3.7LX Alpha 1

    alpha one gen one leak question

    Re: alpha one gen one leak question I am not sure where you live, but you can pick up a pump at any marine store, Auto Zone, Wallmart, probably NAPA. With your method of filling, you have the vent cap off (top screw) and fill thru the bottom drain until gear lube comes out the top vent...
  14. Eric 3.7LX Alpha 1

    1978 Glastron SSV 175 with 470

    Re: 1978 Glastron SSV 175 with 470 This picture shows the weep hole. I think you unscrewed a drain plug. It is good to keep that passage clean.
  15. Eric 3.7LX Alpha 1

    NOT another oil debate!!

    Re: NOT another oil debate!! Mercruiser Service Manual #2 page 1 C-3 What changes your viscosity is the ambient air temperature your boating in. If your boating between 32?F and 90?F majority of the time, it's SAE 30.
  16. Eric 3.7LX Alpha 1

    1983 Mercruiser 470, No Spark

    Re: 1983 Mercruiser 470, No Spark Agree with Don, the points are 95% the issue in these cases. You can save your old coil as a spare, unless you tested resistance across the primary and secondary and it's outta spec. You shouldn't have 12-volts to the coil with the ignition on, it should be...
  17. Eric 3.7LX Alpha 1

    Big Congrats to DonS....

    Today DonS hit a milestone.... 60,000 posts. Wow! I will personally take this time to say THANK YOU for all your time on here and help you've given myself and so many other people over the years. I am a smarter boat owner because of you sir! Thanks Don!
  18. Eric 3.7LX Alpha 1

    What is this upper unit? Pre-Alpha Gen 1?

    Re: What is this upper unit? Pre-Alpha Gen 1? It's not a Mercruiser upper.... it's an aftermarket SEI 106, (Stern Drive Engineering) which is equivalent to the Alpha One. It's compatible with MC-1 to Alpha One. If original it would have been the MC-1 drive. see the chart below: And your ratio...
  19. Eric 3.7LX Alpha 1

    what could be leaking aroung the shift shaft on 85 3.0 mercruiser

    Re: what could be leaking aroung the shift shaft on 85 3.0 mercruiser [/B] The loop is to help keep water out of the tank from waves /side spray. You want to try and have the hose run up from the vent high as possible before running down to the tank. Any amount is better than none. There is a...
  20. Eric 3.7LX Alpha 1

    mercruiser sterndrive shift cable help

    Re: mercruiser sterndrive shift cable help [/B] No... the drive end of the shift cable has a permanent ball on the end which is under the allen screw, which is held in place with the safety wire.. You must remove the inner core shift wire completely out of the boat to remove the shift slide...
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