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Thread: Delorean Performance Industries Spec 1 Stainless Steel Exhaust

  1. #11
    EFI'd Member dn010's Avatar
    Join Date:  Jul 2011

    Location:  Florida: Pinellas County

    Posts:    1,045

    My VIN:    5003

    Club(s):   (DCF)

    I've added lock washers on my bolts as well after losing a few. The heat shield is warped as expected from the heating/cooling - should I remove the lock washers now that the shield is set? I'd hate to have a bracket break...
    -----Dan B.

  2. #12
    President, DeLorean Industries Delorean Industries's Avatar
    Join Date:  May 2011

    Location:  CLE/PHX

    Posts:    2,185

    My VIN:    5646,5080, 5880, 10234, 3639, 2518, 10586, 1538

    Yes the shield needs to be able to deflect under different heat loads. The lock washers will force it to bind on the slots.

  3. #13
    EFI'd Member dn010's Avatar
    Join Date:  Jul 2011

    Location:  Florida: Pinellas County

    Posts:    1,045

    My VIN:    5003

    Club(s):   (DCF)

    Thanks for the fast reply, I'll remove them before any damage is done!
    -----Dan B.

  4. #14
    President, DeLorean Industries Delorean Industries's Avatar
    Join Date:  May 2011

    Location:  CLE/PHX

    Posts:    2,185

    My VIN:    5646,5080, 5880, 10234, 3639, 2518, 10586, 1538

    Its actually not the lock washer but the orientation of it. If it is installed where the cut on the washer can bind in the shield hole there will be a problem. If you want to use a concave tension washer this is safe to do as long as there isn't a serration pattern stamped. We install just the 1/4 -20 bolts and use the machined underside of the head for seating on the z bracket. This give the proper tension.

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