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Thread: MFI drive shaft seal | pulley hub stuck

  1. 05-23-2024, 07:55 PM #1
    PatHidden
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    MFI drive shaft seal | pulley hub stuck

    Hello,

    As the title states, the pulley hub on my MFI pump seems stuck. I ordered a new drive shaft seal and in the meantime I thought I would remove the pulley hub so the seal is ready to change once it arrives. However, it seems stuck. I removed the shaft nut and pump gear that is held on with three socket head allen bolts. The hub wouldn't pull off by hand so I tried a pulley puller. It gets too tight for comfort and it wouldn't budge. Am I missing something here? I don't want to crank on this pulley puller and risk damaging something.

    Any insights are appreciated.
    1969 Porsche 912 Hot rod w/ 2.2 911e drivetrain
    Track 2002 Honda S2000
    Period Correct track 1990 civic si (nasa tt6)
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  2. 05-24-2024, 02:43 PM #2
    edmayo
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    Its a taper fit, try a little heat along with a puller pressure.
    Early S Registry member #90
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    Fort Worth Tx.
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  3. 05-24-2024, 06:41 PM #3
    Richy
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    Yes , propane torch or heat gun , it should pop off the shaft . Do not over tighten when replacing , 18 ft / lbs .
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  4. 05-24-2024, 08:20 PM #4
    PatHidden
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    Great. Thanks guys.

    I'm pretty cautious when comes to MFI so thanks for the confidence boost. I heated it up and put just a little more effort on the puller. It worked, and popped right off.
    Last edited by PatHidden; 05-24-2024 at 08:30 PM.
    1969 Porsche 912 Hot rod w/ 2.2 911e drivetrain
    Track 2002 Honda S2000
    Period Correct track 1990 civic si (nasa tt6)
    Reply With Quote Reply With Quote
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