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  • #1

    oil cooler question

    I guess this is my day for odd questions so here goes:
    today I went to look at an xs1100 standard advertised as a "rough" parts bike for sale here in the phoenix area. "rough" is the understatement of the century. talk about a clapped out roach I wouldn't have hauled it away if the seller paid me. anyway, I did see that it had some sort of oil cooler installed but the oil lines did not go down to the special plate at the oil filter housing. instead, they were routed up over the top of the motor and were spliced into the stock external steel oil line that feeds oil to the head. anybody seen this before? wouldn't this drastically lower oil pressure to the head? just curious...
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  • #2
    Originally posted by 650mark View Post
    ... instead, they were routed up over the top of the motor and were spliced into the stock external steel oil line that feeds oil to the head. anybody seen this before? wouldn't this drastically lower oil pressure to the head? just curious...
    Idk how restrictive the coolers are but I cant imagine they are that bad. It would help the head well.
    '79 XS11 F
    Stock except K&N

    '79 XS11 SF
    Stock, no title.

    '84 Chevy K-10 "Big Blue"
    GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

    "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

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    • #3
      Pressure

      Oil pressure would be the same. Flow numbers may change to the head, but maybe not enough to be detrimental.

      In the later model factory coolers, the oil going through them was being filtered. Not so in the add-on cooler on the parts bike.

      MP
      1981 XS1100H Venturer
      K&N Air Filter
      ACCT
      Custom Paint by Deitz
      Geezer Rectifier/Regulator
      Chacal Stainless Steel Braided Brake Lines
      Chrome Front Rotor & Caliper Covers
      Stebel Nautilus Horn
      EBC Front Rotors
      Limie Accent Moves On In 2015

      Mike

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      • #4
        I've seen a couple of parts bikes plumbed that way but never a running scoot.

        A clue?
        Greg

        Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

        ― Albert Einstein

        80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

        The list changes.

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        • #5
          hey greg, I think you may be right could be why this one hasn't run in decades.

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