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  1. #1
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    2.5L XRi Oil Pump Driven Gear Removal

    I read the some of the posts on removing oil pump, looking for tips on how to remove the driven gear from the hole once the pump has been removed. I'm stuck at this point of the procedure. can't seem to get the coupler out. Any advice?

  2. #2
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    are you referring to the shaft that drives the pump?

  3. #3
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    I believe most leave it in to take up volume JMO

  4. #4
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    Just yank the shaft out and put a factory plug in. There is nothing holding the shaft in place and the factory plug is used to make sure the bushing pressed in the block does not come out.
    Go Time
    2003XS GS 225 Promax/ 260 / 280
    26 Regulator twin 250 EFI

  5. #5
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  6. #6
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    Be sure and take the plastic grank gear out i didnt from advice on hear and 80 hrs later i had a block full of aluminum lost a crank and a rods gear got into the block ..... Lot of work and money later i put the gear in the trash can off the new crank

  7. #7
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    Quote Originally Posted by ivlakeman View Post
    Be sure and take the plastic grank gear out i didnt from advice on hear and 80 hrs later i had a block full of aluminum lost a crank and a rods gear got into the block ..... Lot of work and money later i put the gear in the trash can off the new crank
    Sumthin not rite with that , if screw in plastic crank gear was loctited it shouldn't had come apart , I've been runnin with gear on crank well over 100 hrs at 7k rpm , maybe it comes apart round 8 or 9k? That gear helps even they cyl stuffing

  8. #8
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    1992 2.5.... it didnt come apart it was n tack the two screws was was tight it was not tight on the crank and running it that way with no drive gear on it guess it wore it more and it was into the block i should have took a picture of it but the crank i put back in it the gear was floppy lose on it so i took it off the motor did not have the drive gear in it and it was plug off before i got it but i never run it over 6 grand and fish out of it 5 days a week but new crank with no plastic gear all new bearings and rods and the plastic gear on the way to the dump and back to fishing should be fine Click image for larger version. 

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    Last edited by ivlakeman; 05-23-2020 at 02:06 AM.

  9. #9
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    thats strange cause there are probably 1000's out there that still have gear on it after tha pump has been removed???

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  11. #10
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    Lot of them never take the drive gear out just plug the hole the drive was removed from this motor and the gear being sloppy lose I,m sure it wear starts to work on the plastic gear Click image for larger version. 

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ID:	466280 look at one of the two aluminum nuts that was rubbing the block it will put a load of metal in the block if the metal drive gear is removed be leave it are not
    Last edited by ivlakeman; 05-23-2020 at 07:00 AM.

  12. #11
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    ???.. i've looked inside way more motors than you and all your friends combined will ever look at and have never seen any problems with tha unused gear causing any problems.. don't know or even heard of anyone ever havin' such a problem either.. yours is tha first i know of but there is always a chance that it will... its a merc... soooooooooooooooooo.

    glad ya got it fixed ta your satisfaction.............

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  14. #12
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    Ya that's y I questioned it also, every motor that gets a oil injection delete, has a gear in it for rest of it's life , u mite had put it back together wrong? Forgot loctite? Put that metal nut back in and had it flipped wrong to where it sticks out? That's bout all I can think of off top my noggin

  15. #13
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    Its been on the crank 28 years i have a 1992 title on the motor.... If anything was wrong bad nuts on upside down running back wards no locktite ......lol you could be on something their

  16. #14
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    Quote Originally Posted by Merc 2.5 View Post
    Sumthin not rite with that , if screw in plastic crank gear was loctited it shouldn't had come apart , I've been runnin with gear on crank well over 100 hrs at 7k rpm , maybe it comes apart round 8 or 9k? That gear helps even they cyl stuffing
    I can tell you from experience it doesn't come apart at 8500. Been running it that way on the Euro for over 4 years.

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  18. #15
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    One more time .....the gear did not come apart its been on the crank 28 years ..... It was the motor that came apart from all the metal that the gear took off rubbing the block...... I ran the new REBUILD motor 80 hrs with no drive gear just the main crank gear by its self and if u will look at the picture you can see that it had got into the block running it with out the drive gear and all the metal took out a rod from all the metal floating around in the block ....... I put a new crank in the motor new rods and bearing with out the crank gear on it and its running fine with no.... Crank oil pump plastic gear in it now
    Last edited by ivlakeman; 05-24-2020 at 03:00 AM.

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