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stuborn oil filter removal

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by lenjack, Mar 1, 2009.

  1. lenjack

    lenjack Active Member

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    I have searched and read the other posts on this. I've been doing oil changes for 30+ years, and this is the first time I couldn't remove the filter. it's an '07, and the filter has been changed 4 times, easily. The first one, of course was the OEM. The rest were Mobil 1's. I use a metal end cap, size F. Don't remember where I got it, but WM or Pep Boys would be my guess. This last filter wouldn't move, because the wrench was slipping .Obviously, I put this filter on too tightly, so it's my own fault, but it seems the the flutes in the wrench are too shallow, and the fit was not snug. The wrench wasn't coming off the filter, it would just slip. Is there a more aggresive end cap, or should I get one of those with the teeth that bite in upon removal? I know that would work.

    I dumped the oil first, so I had no choice but to finish the job with the old filter in place, with 3.5 quarts of Amsoil. Will changing the filter now, result in the oil being lost?
     
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Yes, I know the feeling. I have three oil filter wrenches of differing styles that fit the Prius filter, for this eventuality. One in particular is a band-type wrench that grips the filter body instead of the filter end.

    If you are desperate you could drive a long screwdriver into the case near the bottom of the filter, then use the screwdriver as a lever to rotate and remove the filter.

    If you change the filter after refilling the oil, you will only lose the oil within the filter and a little in the threaded mating assembly; maybe 1/2 quart total. So I would say this will not be a huge loss.
     
  3. dogfriend

    dogfriend Human - Animal Hybrid

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    I actually prefer the band type of wrench over the end cap type. The end cap I bought for the Prius works ok, but the one I bought for the Avalon is a POS. I gave up on it.

    The only advantage of the end cap type is that you can use a torque wrench to install to spec.
     
  4. andyprius

    andyprius Senior Member

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    It may, I'm not sure on that. I believe the filter section is basically a different chamber from the oil sump. But put a clean catch pan under just in case. You might take a coffee filter over the cap wrench to give better leverage. As you probably know there is no room for a band wrench. Last resort is the screwdriver, incredibly messy!
     
  5. jayman

    jayman Senior Member

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    Any luck trying one of those strap wrenches or band wrenches? I know there isn't a lot of room to try to get one of the traditional oil filter wrenches into the Prius engine bay, but they are worth a shot

    The dealership Toyota-branded oil filters appear to have what looks like vasoline smeared on the o-ring. On other oil filters, I like to smear grease on the gasket, it makes removal *much* easier

    I hand tighten only
     
  6. snead_c

    snead_c Jam Ma's Car

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    I had this experience on a 1990 VW factory install 19 years ago...spent forever and ended up going the messy screwdriver route.
    For future consideration...Pure One new model oil filters (yellow :eek: ) have a textured surface that might make changes a little easier.
    Good luck
     
  7. hobbit

    hobbit Senior Member

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    Line all or part of the inside surface of your end-cap wrench
    with tape, and wiggle it carefully onto the end of the filter,
    and that should tighten the clearance just enough to make it
    work. Also don't expect the thing to "crack" loose like a tight
    metal-to-metal bolt -- oil filters tend to start moving slowly
    with steady torque, as you're breaking the rubber gasket loose
    rather than metal parts.
    .
    It's also possible you have a too-oversize endcap tool...
    .
    _H*
     
  8. jayman

    jayman Senior Member

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    Any updates on the stuck oil filter?
     
  9. lenjack

    lenjack Active Member

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    Thanks guys for the responses. I haven't tried again, but will, with the shimming suggestion, If no joy, will get myself one of those claw types.
     
  10. lenjack

    lenjack Active Member

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    Anyone else on the probability of oil loss, changing the filter with oil in engine?
     
  11. jayman

    jayman Senior Member

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    No more than half a quart in the filter.
     
  12. dogfriend

    dogfriend Human - Animal Hybrid

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    I agree with Patrick, you will lose the volume in the filter plus a bit more that is in the passage that feeds the filter. The sump is below the level of the filter.

    [​IMG]
     
  13. JSH

    JSH Senior Member

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    I've done the screwdriver method and it works well. You have to be careful that you only pierce the filter and don't hit the engine side.

    Another trick is to take coarse grit sandpaper and wrap the oil filter. This works whether you are using a strap wrench or your hand.
     
  14. jayman

    jayman Senior Member

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    Sometimes I've had good luck with brute strength while screaming the F Bomb at the offending part
     
  15. dogfriend

    dogfriend Human - Animal Hybrid

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    Sometimes this works, but more often I end up losing the tool that is in my hand as I throw it somewhere where I can't find it again. :madgrin:
     
  16. jayman

    jayman Senior Member

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    Not me.

    What happens next, I usually snap and use whatever tool is in my hand to bludgeon the offending part until it dies a slow painful death

    I have to point out this form of automotive "repair" can actually cost you many times what the original part is worth, including collateral damage when I run amok and start working over the entire vehicle

    It sure feels good to blow off some steam though
     
  17. V8Cobrakid

    V8Cobrakid Green Handyman

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    use a screwdriver... as others have mentioned (it's hard to hit the engine with a screwdriver puncturing the filter...)

    worse comes to worse.. you rip the casing of the filter off.... then you're left with 1 solid piece in the center of the filter.. which you can use a wrench to grab.

    i've been through this a few times (my fault of course) with time any filter can be removed.

    i've had to use special wrenches a few times... the screwdriver twice.. once it ripped apart.. the other time i was able to fit the screwdriver between the casing and the filters inner tube.. that inner tube is strong... (which is why i say the casing may rip)

    i tend to buy stronger oil filters with grips on the end now.. instead of "sizes" on the end.. since they never work.

    try buying a band wrench.. they tighten as they turn.. you only have a few inches to use this type of wrench.. but it works well until the casing gives...
     
  18. dhancock

    dhancock 2 Prius Family

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    You mean one of these?
    Small Adj Clamp Filter Wrench - FocuzTech Performance
    I have one and it works well at removing stuck filters. Not so good for installing though.
     
  19. V8Cobrakid

    V8Cobrakid Green Handyman

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    right.. Never.. Ever.. Ever good for installation. WAY too tight...

    when putting your filters in.. remember.. finger tip tight. no more than that...
     
  20. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Toyota service instructions indicate that you should rotate the oil filter 3/4 turn after the gasket contacts the machined surface. However I find that 1/2 turn is adequate.

    You don't want the filter to be too loose, as that might encourage an oil leak under pressure which could result in engine failure.