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  1. kghost

    Re-assemble Alpha One lower unit...

    Oops... 3/8-16 threaded fitting as used on the little manual gear lube pumps that are sold at any marine store.
  2. kghost

    Re-assemble Alpha One lower unit...

    To the best of my knowlege, there is no spec from Mercury regarding outdrive pressure testing. When I went to Mercruiser training I ask what the running pressure of an outdrive was. I was told ~7 PSI. When I went to OMC Cobra and King Cobra outdrive training, OMC had a pressure test...
  3. kghost

    Re-assemble Alpha One lower unit...

    Do not over pressurize the drive. Absolutely no more than 15 psi for your testing.
  4. kghost

    Re-assemble Alpha One lower unit...

    Here is a picture
  5. kghost

    Re-assemble Alpha One lower unit...

    A bycicle pump with a guage and a 3/-16 fitting to screw into drive WHEN EMPTY ONLY. I will attach a pic of a professional pump tester from Stevens Instruments
  6. kghost

    Re-assemble Alpha One lower unit...

    These are the parts needed by Mercruiser Part # (which now is called QuickSilver vs Mercruiser Alpha One Gen 1 Water pump impeller kit and base. When ordering from Amazon--Must Be Quicksilver Brand specifically. Not "Replacement for" Quicksilver 44292A3 Water Pump Base Repair Kit for Select...
  7. kghost

    Re-assemble Alpha One lower unit...

    Virtually NO ONE can determine a leak from a keyboard. Especially one that cannot be seen from the outside. It will only be a guess. This issue of the water pump kit is unclear. There are two components to doing a water pump impeller replacement. 1. Water pump impeller Kit (housing, impeller...
  8. kghost

    Re-assemble Alpha One lower unit...

    """It seems like the drive shaft's splines aren't messing up inside. I pull it down a bit and turn the prop just a hair but still no go.""" When you install lower to upper and the splines are not aligned, Turn the prop C'Clockwise until they do. Then you will be able to push it higher to get...
  9. kghost

    Alpha 1 forward gear needle bearing working out

    In the end, We dont know where SEI sources their gears from. So there is no way to understand the quality of the gear (tolerances or hardness or assembly method). """Thought about taking it apart (just waiting for carrier bearing) and put gear in oven @ 275F and then see if I can get the...
  10. kghost

    mercruiser gear ratio

    Due to the size of the boat, the original suggestion of 1.50:1 ratio may not be correct. The easier way to determine the ration is to pull the drive off boat, Put in forward gear by turning shift lever sticking up from lower part of drive fully clockwise, Rotate the u-joint drive shaft and...
  11. kghost

    Alpha 1 forward gear needle bearing working out

    Most interference dimentions rarely go more then .0015". Fairly standard for interference/press fit. It would be impossible with a .010" interference.
  12. kghost

    mercruiser gear ratio

    Most Small V8's use 1.50 : 1 Or 1.47 : 1. ratio's. On the passenger side of drive (near top of drive) where the decal is, the serial number and ratio are stamped into the casting under the decal.
  13. kghost

    Alpha 1 forward gear needle bearing working out

    SEI is a very affordable replacement drive with a 3 year warranty. I know several who have gone that route. They are around $1800 ish for a complete drive. That being said, There is no way to determine who or where the parts come from or the quality of said parts used. When I said I have...
  14. kghost

    Alpha 1 forward gear needle bearing working out

  15. kghost

    Alpha 1 forward gear needle bearing working out

    I am using my cell so dont want to look at parts diagram now. But, the forward gear bearing comes pre-assembled with needle bearing correct? Its been many years since a bearing, seal only refurb so I forget if that bearing is sold sperately???
  16. kghost

    Alpha 1 forward gear needle bearing working out

    I have never seen this issue in over 30+ years. I have worked on drives with well over 1000+ hrs. Can you post any pics? One of the needle bearing out as you described One of prop shaft area/surface that goes into bearing
  17. kghost

    Considering DIY rebuild on 5.7 2bbl Mercruiser - thoughts?

    Here is One example. Plug and Play. https://www.facebook.com/marketplace/item/1286920319360138/?ref=search&referral_code=null&referral_story_type=post&tracking=browse_serp%3A5bf08c63-5454-4750-9603-d209f4aa37ca
  18. kghost

    Considering DIY rebuild on 5.7 2bbl Mercruiser - thoughts?

    If you look hard on Facebook Market place there are always good deals on drop in 305's and 350's. Plug and play no real swapping any parts. I have seen $2500-$4000. For complete engines. Drop in and connect, align, start engine and go.....
  19. kghost

    Considering DIY rebuild on 5.7 2bbl Mercruiser - thoughts?

    Clarify replacement. What work are you capable of? You can purchase a new or refurbished long block that comes with ( block, heads, oil pump and oil pan, timing chain and cover. What is your engine? Carbed, TBI or EFI? Mechanical fuel pump or electric if carbed??? I Then swap all the...
  20. kghost

    1986 Quicksilver Alpha One throttle control problems

    What do you have and whats your issue?
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