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Thread: Machine marks on 142 rotors?

  1. #1

    Default Machine marks on 142 rotors?

    Hello! I acquired a 142/144 supercharger a few years back in a trade. I recently took some time to look at the rotors a little better, and noticed what appears to be, factory machine marks. Is this normal?

    Attachment 2977

  2. #2
    Join Date
    Dec 2009
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    Connecticut
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    Contact Weiand Tech Service (LINK).
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  3. #3

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    Do you know the actual email address for Weiand Tech? The link on Holley's website WILL NOT let me add any photos to my email.

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
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    22,452

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    No, I don't. You'll probably have to call them for an email address, or use Holley's Technical Services E-Mail System (EMAIL).
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  5. #5

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    My 142 had machine marks in the rotors as well. Check the clearance around the case and look for corresponding marks to see if it has contacted. If the blower is used, possible it was over-torque. If it's only the rotors and if the machine marks don't extend into the tips of the rotors, it's most likely negligible to performance. If it's new, I would peruse warranty. If it's used, you could try to blend out the damage. I was able to salvage my rotors, but the marks were very minor.

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