Announcement

Collapse
No announcement yet.

Wrong exhaust or wrong overdrive???

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Wrong exhaust or wrong overdrive???

    Morning all, I fear I may have made a slight faux-pas!!

    Recently I purchased a Stainless manifold and exhaust kit from some well known brothers who supply parts for British classic cars. I thought my early 1971 Stag had an A Type overdrive fitted, so this led my choice on which exhaust system to buy, but upon fitting I find that the brackets which are supposed to connect the down pipes to the overdrive support are no where to be seen. This led me to believe that the overdrive may have been a J Type instead. This has led me to ask many questions, which include:

    1. How can anyone like myself, who is capable of making such an error, easily tell the difference between the A and J Type overdrive units.

    2. Does anyone out there know of a way I can attach my exhaust to the car, or do I have to purchase the correct down pipes?

    3. Is my better half correct in her assumption that I am too stupid to be playing with real cars and should return to playing with corgi cars!!

    Any help or advice would be welcome please.

    #2
    1. A-type o/drive has a round, barrel-shaped casting with a large brass plug on the bottom. J-type o/drive has a ribbed sump underneath. Other differences, but these can be seen easily by kneeling down and looking under.

    2. Depends on what you find regarding o/drive type.

    3. Not my place to comment, sorry.
    Dave
    1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.

    Comment


      #3
      Thanks DJT, from your description it's a J type. Any thoughts of a way to connect the pipes to the o/drive? I don't think a straightforward bracket would work as the speedo drive is in the way!!

      Thanks again

      Comment


        #4
        My 73 Stag has a J type and when I was struggling to fit the poorly made (new) front pipes I took a pic of the bracket and fixing points for a STANDARD type exhaust. Right at the rear of the OD are 2 threaded holes, you can clearly see the bolt in the one hole that I used, but if you look carefully, you can just make out the unused one. Hope the pic helps............

        Cheers, Keith.

        Attached Files

        Comment


          #5
          there's a bracket that bolts to the gearbox,and then the down pipes bolt to that

          Dave
          73 mk 1/2 now gone to the dark side BLUE

          Comment


            #6
            Thanks Keith and Dave, I've got the bracket and located the threaded holes, my Saturday afternoon task will be to join them together

            Thanks again all for your help

            John

            Comment


              #7
              ....and the next obvious question is.... does anyone know the thread size in the J Type overdrive? It looks to be 5/16 or 3/8 but would be it be course or fine thread? I don't want to cross or strip the tapped hole in the OD!

              Thanks again

              Comment


                #8
                The ROM states "Rear Engine Mounting Bracket to Gearbox - 5/16" UNF" which wouldn't surprise me.

                Richard
                Mabel is a white 1972 Mk1˝, TV8, ZF 4HP-22 auto,
                2016 RBRR finisher. 400 mile C2C 21/22 April 2018!

                Comment

                canli bahis siteleri bahis siteleri ecebet.net
                antalya escort
                canli mac izle
                Working...
                X