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    #1

    After getting rid of the smog pump...

    My smog pump pulley just quit and I removed the pump.(it isnt legally neccesary in Saudi anyway.) Can someone tell me the belt size in inches or its Motocraft part number to turn the A/C compressor only ? Can the existing belt be used by adjusting the position of the tensioner pulley?
    Thanks
    sigpic1988 Colony Park
    Tags: None
    #2
    Old belt is too long no matter what ... but you can always measure with a piece of string to get you close. Thankfully, when I did that a few years back the parts guys were pretty understanding about my need to try a couple different belts before calling it good. On my car I had issues with the wrong side of the belt contacting the tensioner pulley afterward, but guys here say you can either get a grooved pulley from something like a Cougar or else work it so the smooth side of the belt is still against the pulley.

    Now you can yank the rest of the smog system and plug the 5/8-11 holes on the back of the heads and cap off the air injection tube on the exhaust!
    2012 Mazda5 Touring | Finally working on the LTD again!

    Comment

      #3
      theres no motorcraft belt
      you need a 560k6 that means a 56" 6 rib belt

      1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
      2006 Lincoln Town Car Signature. Stock for now
      1989 Ford F-250 4x4 much much more to come, sefi converted so far.
      1986 Toyota pickup with LSC wheels and 225/60/16 tires.
      2008 Hyundai Elantra future Revcon toad
      1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

      please be patient, rebuilding an empire!

      Comment

        #4
        Scott, what brand is that belt? or is it universal for all

        Doesn't yanking the air pump cause the cats to clog.

        Tim
        2000 Ford Crown Victoria
        84 Lincoln Town car signature, R.I.P
        85 Ford LTD Crown Victoria 2 door performance project
        89 Lincoln town car: RIP
        89 Crown Victoria LX 2002 USACi sound quality world champion RIP
        1990 Mercury Grand Marquis LS
        1994 Mercury Grand Marquis (sold)
        2004 Mercury Marauder. owned for a week then got screwed by the dealer

        Comment

          #5
          It won't burn as hot or as clean with out the air pump. Which give enough time could clog your cats but thats just sounds an excuse to hollow out your cats if you ask me though. At least thats what I would do
          1984 CV tudor 351W, 4bbl, 5-speed best time in the 1/8 8.39 at 80 with 1.80 60ft time.
          2006 P71, 1988 Bronco II, 1986 Baby LTD(5.0 & T5 swap in progress), 1976 16' Hobie Cat, 12' AquaFinn
          http://www.cardomain.com/ride/2651997 UPDATED 20100826
          sigpic

          Comment

            #6
            The air pump's only purpose in life is to warm the cats up faster by injecting air. it makes the exhaust catch fire in the cats so it warms. Once the motor has been running for a while it dumps air back to atmosphere. Run the car 15 minutes and they're as warm as they're gonna get.

            The 560k6 is a general part number. 56" 6 rib belt. There are a couple numbering systems, I think 560k6 is the Dayco system. Goodyear uses a slightly different scheme but anyplace should be able to cross it over to whatever numbering system they use.
            86 Lincoln Town Car (Galactica).
            5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

            91 Lincoln Mark VII LSC grandpa spec white and cranberry

            1984 Lincoln Continental TurboDiesel - rolls coal

            Originally posted by phayzer5
            I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

            Everything looks like voodoo if you don't understand how it works

            Comment

              #7
              Originally posted by gadget73 View Post
              The air pump's only purpose in life is to warm the cats up faster by injecting air. it makes the exhaust catch fire in the cats so it warms. Once the motor has been running for a while it dumps air back to atmosphere. Run the car 15 minutes and they're as warm as they're gonna get.
              Weird! So that's seriously all the whole Thermactor system does, and it only really does anything for the first 15 minutes or so of engine operation? Seems to me that having the pump belt-operated with no clutch like the A/C pump has would be rather inefficient, then..........
              2012 Mazda5 Touring | Finally working on the LTD again!

              Comment

                #8
                Basically, yes. It starts off injecting air into the heads, then shuts that off in favor of air to the cats. It does flip a little air in there from time to time while the engine is running, but not much. Once the motor is hot it can't really pump air in because it'll cause combustion in the converter and overheat the cats. Its also a very small amount of drag, not enough to bother with installing a clutch on.
                86 Lincoln Town Car (Galactica).
                5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                91 Lincoln Mark VII LSC grandpa spec white and cranberry

                1984 Lincoln Continental TurboDiesel - rolls coal

                Originally posted by phayzer5
                I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                Everything looks like voodoo if you don't understand how it works

                Comment

                  #9
                  I assume each stage of its operation is dependent on engine temperature as monitored by the ECM?
                  2012 Mazda5 Touring | Finally working on the LTD again!

                  Comment

                    #10
                    yeah
                    86 Lincoln Town Car (Galactica).
                    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                    91 Lincoln Mark VII LSC grandpa spec white and cranberry

                    1984 Lincoln Continental TurboDiesel - rolls coal

                    Originally posted by phayzer5
                    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                    Everything looks like voodoo if you don't understand how it works

                    Comment

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