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Reunited with my TR6 after 13 months in storage

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  • Reunited with my TR6 after 13 months in storage

    I finally got my 74 to Virginia after being stored in a hot garage in Texas for 13+ months after my move. She ran like a top before, but now, needless to say, I have issues. The biggest concern is the gas pouring out of the bottom of the ZS carbs. They were freshly rebuilt not long before the move, but I’m guessing the internals are gummed up now. Is a rebuild in my future...or maybe just a cleaning? The second big issue is the lack of clutch pressure. I have the HVDA conversion. I’ll crawl underneath tomorrow and do an assessment of that situation. That very hot garage was certainly not the best storage environment, but my choices were limited. I’m afraid I may have to replace some dry seals before I get her back on the road. I’d appreciate the group’s advice on how best to,proceed. Thanks guys.

  • #2
    I saw Poolboy’s previous post with guidance about cleaning the needle valves - perhaps that’s a good place to start?

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    • #3
      This is speculation on my part, but IF the rebuild was a only little over 13 months ago and IF the seal around the float chamber plug was changed at that time, the gas you see pouring out the bottom may not have come from that location due to the failure of the O-ring seal...gravity may have caused the gas from a float chamber vent to end up on the very bottom of the carb. ....so you might want to check that out.
      But either way, it is likely as 'mdpic' suggested the needle valve, the culprit.
      That scenario can happen in a short period of time if the car isn't driven regularly.
      As an example, I maintain a true 71 TR6 survivor for a widow down in Louisiana. About 6 months ago I rebuilt the carbs. Since that time she put less than 200 miles on the car, finally leaving it undisturbed for several weeks while she was away.
      When she returned a couple weeks ago, she found that gas poured out of one of the carbs after she started the engine and then called me.
      I went down there this past Wednesday and discovered the needle valve in the front carb, frozen in an open position....flushing would have been futile in this instance. The needle valve's plunger was really stuck and took some effort to free up. Regardless I replaced it with another new one.
      So..I guess it goes back to ".. don't trust needle valves". Admittedly, it may not be entirely the needle valve's fault for the malfunctions; it may be the fuel or the fuel residue or the residual fuel pressure that are contributing factors, but I still don't trust them.
      Last edited by poolboy; 11-03-2018, 03:19 PM.
      Driving a 1973 TR6
      Doing ZS carb repairs
      email kencorsaw"at"aol.com

      Comment


      • #4
        Originally posted by mdpic View Post
        I finally got my 74 to Virginia after being stored in a hot garage in Texas for 13+ months after my move. She ran like a top before, but now, needless to say, I have issues. The biggest concern is the gas pouring out of the bottom of the ZS carbs. They were freshly rebuilt not long before the move, but I’m guessing the internals are gummed up now. Is a rebuild in my future...or maybe just a cleaning? The second big issue is the lack of clutch pressure. I have the HVDA conversion. I’ll crawl underneath tomorrow and do an assessment of that situation. That very hot garage was certainly not the best storage environment, but my choices were limited. I’m afraid I may have to replace some dry seals before I get her back on the road. I’d appreciate the group’s advice on how best to,proceed. Thanks guys.
        mdpic --- There is an O-ring around the plug at the bottom of these ZS carbs that may have dried out during storage. Replacement is straightforward. Could be that the fuel level control needle(s) are stuck in the open position?

        On the HVDA lack of clutch pressure...There's not much that can be determined by looking underneath the car, as the throwout bearing and hydraulic lines are inside the bell housing. The first thing I'd do here is to bleed the system. This may get the feel of pressure back and clutch disengagement will be good again.

        Dick

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        • #5
          Thanks for the replies. I plan to jump into the carbs tomorrow and I’ll provide a progress report when I’m done. The clutch will have to wait.

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          • #6
            Yeah, Id take some O-rings for those float bowl plugs with me.
            '74 TR6 CF13007U aka "Mr. T"
            Custom Blue (Delft-Like) and New Tan (Formerly Mallard and New Tan)
            Points, Ballast Bypassed, Bosch Blue Coil, Moss Cobalt Wires, Champion RN12YC plugs.
            Peaks and tweaks, but the spirit of Original
            Redlines always.
            My wife is the Driver, I'm just the Mechanic....

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            • #7
              The o-rings are not looking good -dry and brittle. I’ll oder new ones tonight since I can’t find anything after the move. Thanks.

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              • #8
                If that's the only problem, which I doubt if it was as you say 'gas pouring out', then if it's not too late send your mailing address to my email address below and I'll give you some good O-rings that will last a lot longer than those 2 years before drying out and getting brittle.
                Driving a 1973 TR6
                Doing ZS carb repairs
                email kencorsaw"at"aol.com

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                • #9
                  Thank you. I sent you a note.

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                  • poolboy
                    poolboy commented
                    Editing a comment
                    Got it...you're welcome, no problem.

                Reunited with my TR6 after 13 months in storage

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