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Pistons and skimming

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    Pistons and skimming

    Hi everyone, looking for some advice, this is the first time I have worked on an engine really taking my time lots of photos and labelling up. It all started with seized engine which is now free, water had got into at least two cylinders. I have the heads off but would like to get them skimmed l live in Aldeburgh Suffolk and wondered if anyone knew of an engineering outfit near me that anyone have had dealings with. I also need to remove pistons I know at least two bores have some corrosion, any tips on this would be greatly appreciated, engine block still in car. I’m sure I wil be asking for more advice as I go along. To be honest this is all a bit overwhelming and new to me but cash is in short supply at the moment as I’m unable to work because of health issues. So determined to give it a good go. Many thanks Steve.

    #2
    PM sent
    "The UK,s 2nd Most Easterly Stag" Quad Exhaust- ZF 4 Speed BOX

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      #3
      Hi Martin - if it’s a positive recommendation why not post it here so others who might find themselves in the same position can search and find your valuable input?

      cheers
      paul
      Paul - 3 projects, 1 breaker - garage built and housing 2 white Stags. One runs, one doesn't

      Comment


        #4
        Before you go any further you need to try to determine how the water got into the two cylinders - most likely candidates head gasket failure or manifold gasket failure. Next determine if the heads really do need skimming, you don't want to do it just for the sake of it.

        The block will have to come out. and should be stripped down - not that hard to do but you will ideally need an engine stand to make the job easier - and safer

        At that point you may find out how deep your pockets need to be. To give you an idea I rebuilt my engine last year and spent £600 just on 4 pistons, main and big end shells and gaskets. I was lucky and got away with a light honing of the bores. If you need timing chains, water pump etc. then add another £300 ish. Can't comment on what a rebore will cost - and that depends on whether the block has already been rebored and to what size. Then you get to the heads, if lucky you can strip them down and skimmed if necessary and reuse the buckets, springs and valves, if not add another couple of hundred for more bits. Then once you have got that far you want to make sure the rest of the ancillaries are OK, carbs, distributor and radiator.

        So before you rush in getting heads skimmed, do a full assessment so you know what you are letting yourself in for. Nothing worse than having to stop a project because of an unexpected cost.

        All in I spent around £1500 on parts for my rebuild (included an new distributor & aldon ignitor ignition module) but no machining (skimming/rebores etc.) and I did all the work myself. - oh and that didn't include the cost of oil/filter/coolant or the parts to rebuild the carbs as I already had those.

        Plenty of help and advice on here as you you get deeper into it.
        Now Stagless but have numerous car projects
        So many cars, so little time!

        Comment


          #5
          Originally posted by Goldstar View Post
          Hi Martin - if it’s a positive recommendation why not post it here so others who might find themselves in the same position can search and find your valuable input?

          cheers
          paul
          I gave the details of Tm Hart Suffolk co-ordinator , who will have the phone number for the gentleman that has done a lot of engine work for Suffolk & Norfolk guys, I think he uses the same people I use in 2012 for my heads, but I'm not certain of that , hence the Pm. The gentleman in question may pay Steve a visit to help him?. hope that's ok?
          Last edited by MandM; 18 September 2024, 22:16.
          "The UK,s 2nd Most Easterly Stag" Quad Exhaust- ZF 4 Speed BOX

          Comment


            #6
            Thanks for all reply’s, I’m pretty sure the inlet manifold gasket was the culprit,it had been pretty bodged up using black sealant. I will check heads for flatness if that’s the right word, I will remove pistons to assess damage and go from there. I will also assess everything else as mentioned by marshman. I will report back with assessment and for plenty more help. Many thanks Steve.

            Comment


              #7
              Originally posted by stonedrive View Post
              Thanks for all reply’s, I’m pretty sure the inlet manifold gasket was the culprit,it had been pretty bodged up using black sealant. I will check heads for flatness if that’s the right word, I will remove pistons to assess damage and go from there. I will also assess everything else as mentioned by marshman. I will report back with assessment and for plenty more help. Many thanks Steve.
              I would also check the inlet manifold flanges for flatness

              Dave

              Comment


                #8
                Hi Dave, will do. Many thanks Steve.

                Comment

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