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  1. #41
    Established Member Two Rings climb4hope's Avatar
    Join Date
    Jan 16 2017
    AZ Member #
    390861
    My Garage
    01 Allroad 2.7T manual, 02 Allroad 2.7T auto, 01 S4 6sp (building)
    Location
    Seattle/WA

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    Does anybody know the factory specs for the radial rotor and driven rotor tip clearances for the oil pump?
    I have two pumps. One is worn visually more than the other and the rotor is scored, another seems to be in a bit better shape but I want to ensure that the clearances are right and I don't have to spend another ~280 on a new pump.

    This is a photo of the driven rotor (the worse out of two).


    Toyota specs their pumps for 0.10-0.16mm, max 0.2mm radial and 0.04-0.16mm, max 0.2mm for the tip clearances. ELSA does not seem to have any info on that and couldn't find anything in google. If I can't find audi factory specs, will probably use the the toyota's numbers at least for the reference.

  2. #42
    Veteran Member Four Rings SleeperAvant's Avatar
    Join Date
    Jun 21 2005
    AZ Member #
    6966
    Location
    Milton, Ontario

    Good work in saving this B5 S4. Looks like the previous owner didn't give a rat's ass about it and just thought regular oil changes would do the trick.
    Steve

    2005 A4 Avant 1.8T Quattro MT
    Comp Turbo Billet T3/T4 4756 SPA clone manifold Turbosmart ultragate Forge 007 DV 034 SPA 3" downpipe, B6 S4 exhaust AEB head & intake manifold EV14 750cc @ 4bar Snow Performance Meth injection Eurodyne Maestro Bilstein PSS9 OZ ultraleggera matte bronze w/Conti Extreme Contact Sport B5 S4 front brakes 034 street density engine mounts JHM B7 RS4 LWFW + clutch

  3. #43
    Established Member Two Rings climb4hope's Avatar
    Join Date
    Jan 16 2017
    AZ Member #
    390861
    My Garage
    01 Allroad 2.7T manual, 02 Allroad 2.7T auto, 01 S4 6sp (building)
    Location
    Seattle/WA

    Ok, I measured the spacing and the numbers were 0.102 for radial and 0.05 for tip clearances. Seems like there is some good margin so I decided to polish the driven gear.

    For that I printed a plastic gear for the driven gear on 3d printer to be able to put it on a bolt an hook up to the drill:


    That actually worked quite well with 400 and then 800 grit sandpaper.
    The clearances were still within the "toyota" specs :) Since I don't have audi numbers had to make some assumptions.

    The pump is cleaned, primed with oil and ready to be used again.

  4. #44
    Established Member Two Rings climb4hope's Avatar
    Join Date
    Jan 16 2017
    AZ Member #
    390861
    My Garage
    01 Allroad 2.7T manual, 02 Allroad 2.7T auto, 01 S4 6sp (building)
    Location
    Seattle/WA

    Now the block time.
    It took full 3 long evening, 2 or 3 different paint strippers, rust solvent, 25 pounds of soda in the blaster, a bunch of manual brushing and a "hot tub" for the engine block to clean it.

    Here's my home made purple power hot tank:


    Now the painting job.

    Priming:


    Finished:


    Pistons are cleaned as well and ready for the new rings and to be put into the block. Just need to resurface it tomorrow after the paint fully dries.

  5. #45
    Veteran Member Three Rings A4_PimP's Avatar
    Join Date
    Jan 18 2012
    AZ Member #
    86834
    Location
    Waterdown/Ontario/Canada

    Wow I had trouble doing an oil change and then I come into this thread lol jealous in a good way


    Sent from my iPhone using Tapatalk

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