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Oil overspray in driver’s front wheel well

Discussion in 'Generation 1 Prius Discussion' started by tada, May 13, 2018.

  1. tada

    tada Member

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    Today I went to perform my service at 120,000 miles. I changed the oil, rotated the tires, checked the thickness of the brakes, and checked the inverter coolant pump. Everything was ok.

    But when I bought the car, all of the front wheel well liners we’re missing, along with the plastic “skid” plates. So I acquired some aftermarket wheel well liners to the install during the tire rotation.

    When I went to install the driver’s side liner, I found oil overspray all over the wheel well. At least it looks like used dirty motor oil. Not thick like grease. That made me immediately thing that maybe the CV boot was cracked or leaking. But upon inspection, the boot looks dry and intact. I took it out for a spin, and checked the CV joint, and it sounds good.

    Now I do log a lot of highway miles weekly and they are repaving sections of it between here and Phoenix. I cleaned it up as much as I could and installed the liner. I’ll monitor it for overspray.

    What do you all think? The CV boot is dry and intact. But the ball joint (new) right below it was covered with this oil. Any help would be appreciated.
     
  2. Dxta

    Dxta Senior Member

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    New ball joint covered with this oil? Depends on what kind of oil you meant here. Engine oil, or lubricating oil of the CV joint?

    If it's engine oil, there must be leaks from the oil filter, or the drain bolt.


    Dxta
     
  3. tada

    tada Member

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    I can’t determine the kind of oil or the source. As I posted, I did an oil change at the same time. The oil filter and drain plug are not leaking. The appearance of the oil if you swipe it with your finger looks like dirty engine oil. I’ve check for leaks all over the underside and there are non. That’s why I suspect fresh oil from highway repaving. Just trying to cover all my bases and keep an expensive repair from happening. I’m also very wary about that CV boot now.

    If it comes down to the CV boot are there any options available without disassembling the whole wheel to replace the boot?
     
  4. Brian in Tucson

    Brian in Tucson Active Member

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    clean the boot with brake cleaner and paper towels. Get it really clean. Then inspect it for cracks/checking.
    If it's badly checked, start planning for a weekend to remove the half shaft and clean, regrease, and put on new boots. Better to do it before the boot disintegrates which will contaminate the grease with our lovely AZ dust.
    I did the ones on my Porsche, during the engine swap. All in all, a fairly satisfying and pleasant task!

    Oh, and I'd clean up whatever kind of oil is spewed all over the under side of the car. Previously mentioned brake cleaner (cheap at Walmart) is one of my favorites. With all my old rigs, I pretty much buy it by the case. The other degreaser which works remarkably well is orange degreaser at Dollar Tree--a buck for a half gallon, water clean up--like a pressure washer.

    Since you are local, you could borrow my little pressure washer. And, if you rebuild the CV joints (grease and boots) you could clean the half shafts in my parts washer. I'll have to clear it off, it makes such a nice workbench.
     
    #4 Brian in Tucson, May 13, 2018
    Last edited: May 13, 2018
    Raytheeagle likes this.
  5. tada

    tada Member

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    Thanks Brian! I’ve got it clean and back together. I’ll check it for the next few days. If it’s slinging oil, I’ll do the half shafts. I appreciate the offer of your parts washer and will contact you.
    With the age of the car, is it ok just to clean everything up and replace the boots or do I need to replace the half shafts completely? Right now I have no clicking.
     
  6. tada

    tada Member

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    One more thing, is this an option?

    Enjoy the Starsky and Hutch music!
     
  7. Brian in Tucson

    Brian in Tucson Active Member

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    I would think that on a Prius, the way most people drive 'em, the half shafts would respond well to good maintenance and fresh grease. Basically they should last the life of the car or longer. If the boots are in good shape, there's no hurry to do the maintenance.

    I didn't watch the video, my way is to take them all the way out, discard the old boot and get the guts of the CV really clean, then regrease them and put new boots on. The Beck-Arnley kits that Rockauto sells includes new grease.
     
    tada likes this.
  8. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    That's commendable. I doubt any dealership would do that; they'd just replace. On the face of it it's cheaper I guess, with the high labour charges, but there's something wrong with that picture.

    If the steel components are completely serviceable, and the only problem is boot failure and grease loss, to just toss it, just to avoid the chore of replacing the grease and installing a new boot, seems absurd.
     
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  9. Brian in Tucson

    Brian in Tucson Active Member

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    The difference between cleaning, grease, and new boots vs new aftermarket half shafts is about $60. I guess Mendel that from a financial point of view, it's better to just buy the two half shafts for about $100. (Rock Auto) Part of the reason I drive even an old Prius is because it has a smaller carbon footprint. For me, I'd rather rebuild the old half shafts than recycle them as scrap--smaller carbon foot print, Eh? But also, it's satisfying to see the nice clean rebuilt half shaft and know that it was me that did it. And no half shafts fit quite as well as the originals.

    On my other car, it was financially wise to do the rebuild myself.
     
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