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Old 08-13-2019, 06:08 PM   #21
Lt. JG
Join Date: Apr 2019
Posts: 27

OK.. Time to stop sobbing and get this fixed..

This is a mammoth spend and risk for me but at the same time I bought the boat for mental health reasons and to learn too... If the coupler needs replacing, I think I'll get a professional to do it.. but until then........

Could I please ask you to review my plan and shopping list? Is there is anything else I need that you can think of.. Please bear in mind I'm a complete novice with limited tools however the instructional videos on are great and feel confident enough to get this done.

When ordering the outleg it says "Ships in two boxes. Does not Include Complete Install Kit or Anode Kit. Please see related items below. Up to 300 HP Uses the latest style speedometer fitting - OE#860382. This part is not included and will be required to have a working speedometer."

Not too worried about speedometer can look at that another time unless you can see a reason to just get it done with the leg.

I can take the anodes and bits off the old leg if I need them however will replace the gasket and o-rings etc from a new set.

Shopping list
  • 1 x Alpha 1 Gen 2 Complete Sterndrive 1.81 Ratio. My current unit shows 1.80 on the side however it's slightly rubbed off. Can definitely see 1.8
  • 1 x Bell housing gasket set (1983 – present)
  • 1 x 3M 08002 Yellow 2 oz. Super Weather-Strip and Gasket Adhesive Tube
  • 1 x GEAR OIL PUMP fits Quicksilver & Sierra 946ml & 1 lt containers.
  • 3 x Quicksilver Lower unit high performance gear lube
  • 1 x tube of quicksilver extreme grease
  • 1 x Impeller replacement kit (don’t know if new complete drive comes with one)
  • 1 x Engine alignment tool for Mercruiser OMC Cobra OMC SX and Volvo SX stern drives
  • 1 x Solus Prop 1511-143-21

Install Plan
  1. Place impeller into new leg and assemble
  2. Put throttle into forward gear
  3. Remove trim arms
  4. Remove old leg using 6 bolts.
  5. Remove old gasket and O-Rings
  6. Grease alignment tool and check engine/coupler alinement
  7. If ok continue, if not adjust engine height
  8. Install O-Ring and grease drive shaft
  9. Install water passage o-ring with adhesive
  10. Install bell housing gasket
  11. Place new leg and screw into place.
  12. Fix anodes from old leg
  13. Fix trim arms
  14. Install propeller
  15. Pump gear lube from bottom inlet
  16. Pour rest of lube in gear lube container at engine
  17. Pray?


Thank you all once again!
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Old 08-13-2019, 08:23 PM   #22
mmwjr's Avatar
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 7,267

As stated before Iím not a fan of SEI based on others experiences. The new lower unit will come with a new impeller already installed. The Alpha only needs about 1.5 quarts of gear lube. All else sounds correct.

1997 2400 SCR
5.7 Vortec / Bravo 2
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