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  1. #1

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    93 SL 750 Oil Pump

    Hey all!

    I'm back to working on my SL 750 and I'm trying to take the oil pump off, but, I cannot figure a way to get the bottom bolt out. I got the top one out without a problem, I can find and see the bottom bolt but for the life of me cannot figure how to get a socket on it! I was thinking a thin wall 7MM socket would do, but anyone have helpful hints?

    Thank you


  2. #2

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    My issue is the bolt is not an Allen or hex. It's a standard bolt, an 8mm to be exact. I'm almost at the point of pulling the motor

  3. #3
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    Why are you removing it? Just use it and replace all of the lines.

  4. #4

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    The ski is 20 sum years old and I'm not trusting the pump. I have the block off plate with the allen head bolts set and ready, but cannot get it off. I'm about to just do as you said and replace the lines, this is insane how it's in there! Everyone has said it's an allen bolt, it's not. I'm not sure if the previous owner did something or not. But on that note then, what are the specs for the oil lines? I know the fuel you need one for Marine use, and I have done the lines for the fuel, advise for the oil would be gratefully appreciated.

  5. #5
    BlueFishCrisis's Avatar
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    Use 1/8" ID to replace the oil lines. Not sure if the OEM was standard bolts or allen for that year. The pumps are reliable, just the lines, filters, and connections that seem to cause issues.....

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  7. #6

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    Thank you BlueFrishChris, any style? Are the just normal clear lines? Or is there oil injection lines? I've hit that "Awww screw it! Oil injection it is." Also, from the pump to the intake, should I replace those "pipes" or just the line from the tank to pump? I really hadn't planned on keeping the inject, oh well, crap happens.
    Last edited by Octoarms; 03-27-2015 at 10:43 PM.

  8. #7
    BlueFishCrisis's Avatar
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    Replace all of the lines. Any 1/4" from the tank to the pump, 1/8" from the pump to the carbs. Any fuel rated lines should be fine. Make sure to leave enough slack to prevent kinks in the line. Replace the inline filter too.

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