Metal Flakes in Rodchester

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  • SGS714
    Low Range
    • Jan 2007
    • 83
    #1

    Metal Flakes in Rodchester

    We have a Rodchester carb that must be peeling small aluminum flakes that end up in the bowl and then get sucked up into the needle and causes engine to miss. This is over time...2 tanks of gas getting better. New tank, lines, filter, and pump so it must be comming off the carb somewhere...could just be funk of sometype. Very tiny 1/32 or so flat illregular shapes, in a light color that are intact but break apart when you try to isolate one to remove. This carb was soaked in a parts cleaning tank for hours and fully rebuilt by very capable mechanic..(I don't do carb work)..he has never seen this before. We are almost to the point of buying new carb.

    Any thoughts are appreciated.
    ________________________
    67 Series II
    71 Series IIa 88" ACR 2.8 Power Plus
    89 RRC SWB 2-Door 2.4L tdi Spanish
    93 D110 NAS 327
    94 2x D90 NAS #'s 1076, 1181
    95 3x RRC 2-SWB, 1-LWB
    Tags: None
    • LaneRover
      Overdrive
      • Oct 2006
      • 1743
      #2
      Originally posted by SGS714
      We have a Rodchester carb that must be peeling small aluminum flakes that end up in the bowl and then get sucked up into the needle and causes engine to miss. This is over time...2 tanks of gas getting better. New tank, lines, filter, and pump so it must be comming off the carb somewhere...could just be funk of sometype. Very tiny 1/32 or so flat illregular shapes, in a light color that are intact but break apart when you try to isolate one to remove. This carb was soaked in a parts cleaning tank for hours and fully rebuilt by very capable mechanic..(I don't do carb work)..he has never seen this before. We are almost to the point of buying new carb.

      Any thoughts are appreciated.
      Any chance it is from the fuel pump?

      I find it strange that the small pieces are breaking up when you try to remove it. Are you sure it is aluminum?
      1958 107 SW - Sold to a better home
      1965 109 SW - nearly running well
      1966 88 SW - running but needing attention
      1969 109 P-UP

      http://www.facebook.com/album.php?ai...2&l=64cfe23aa2

        Comment

        • SafeAirOne
          Overdrive
          • Apr 2008
          • 3435
          #3
          Is there a fuel filter between the pump and the carb? This is a pretty good way to eliminate everything upstream.
          --Mark

          1973 SIII 109 RHD 2.5NA Diesel

          0-54mph in just under 11.5 minutes
          (9.7 minutes now that she's a 3-door).

            Comment

            • SGS714
              Low Range
              • Jan 2007
              • 83
              #4
              Originally posted by LaneRover
              Any chance it is from the fuel pump?

              I find it strange that the small pieces are breaking up when you try to remove it. Are you sure it is aluminum?
              I am on my 3rd fuel pump. First one replaced because of issue mentioned, 2nd one lasted 4.5mi, 3rd one currently in truck. No not sure it is aluminum...just can't tell....might be light grey looking build up of some type.

              Originally posted by SafeAirOne
              Is there a fuel filter between the pump and the carb? This is a pretty good way to eliminate everything upstream.
              Yes, on 2nd one.

              I might add...installled new KN Filter and thing that attatches it to the carb.

              Appreciate it....Keep your thoughts comming.
              ________________________
              67 Series II
              71 Series IIa 88" ACR 2.8 Power Plus
              89 RRC SWB 2-Door 2.4L tdi Spanish
              93 D110 NAS 327
              94 2x D90 NAS #'s 1076, 1181
              95 3x RRC 2-SWB, 1-LWB

                Comment

                • Tim Smith
                  Overdrive
                  • Nov 2006
                  • 1504
                  #5
                  Crazy thought here but has the truck had lead additive added to the tank and then sat for some time? I wonder if lead or some other additive can congeal in the lines with these new fuels.

                    Comment

                    • SGS714
                      Low Range
                      • Jan 2007
                      • 83
                      #6
                      Originally posted by Tim Smith
                      Crazy thought here but has the truck had lead additive added to the tank and then sat for some time? I wonder if lead or some other additive can congeal in the lines with these new fuels.
                      Not that crazy....makes sense. I have cleaned the bowl again and drove about 100mi and the engine only bogged a couple of times on the highway last weekend, but not bad enough to hinder the trip or warrant taking to top of the carb off yet to check. Now this morning it didn't want to start, ussually just turn the key and it fires right up, but gave it choke and it sputtered and started and ran fine.

                      Hopefully the issue has ran it's course.
                      ________________________
                      67 Series II
                      71 Series IIa 88" ACR 2.8 Power Plus
                      89 RRC SWB 2-Door 2.4L tdi Spanish
                      93 D110 NAS 327
                      94 2x D90 NAS #'s 1076, 1181
                      95 3x RRC 2-SWB, 1-LWB

                        Comment

                        • Tim Smith
                          Overdrive
                          • Nov 2006
                          • 1504
                          #7
                          Using the choke *might* be helping to suck junk through the jets.

                          If you get stuck out on the road with it running poorly, you might try
                          the farmers trick of revving the motor and then putting your hand over
                          the top of the carb quickly. The vacuum created should help suck some
                          dirt through the jets if that is the problem. Of course it could also
                          wedge the dirt even tighter into the jets so YMMV.

                            Comment

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