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    More Q than A

    This maybe a little long. I need to pick the collective brains.
    Firstly while having an MOT last week, a comment was made that the front brakes were binding a bit. Not so much I "should worry about it" Brakes passed, no advisory for the bind. Car has been running fine lately, maybe the best it has been in a long time. Car has the Stagwebber header tank fitted. I checked the fluids before leaving for Berkshire, all good.
    Four miles approx down the road from the front door, there was a loss of power, followed by a chugging, engine running rough (thought had lost a couple of cylinders) temp gauge doing an impersonation of a Red Arrow in a climb, (thought head gasket). Stopped in a lay by open the bonnet, loads of heat, water coming out of the header tank overflow, also out of the tank filler neck (thought rad cap failure). Phoned recovery. (I say I sat for a little while between prodding and poking, but was there for 90mins till recovery arrived)
    After a while tried the engine, started straight away, ticked over nicely. Again the Red Arrow impression from the temp gauge. Revved it a bit seemingly working fine, switched off before I lost sight of the
    Red Arrow in the Red. After a while checked the dipstick, the one in the engine not the one stood scratching its head. No sign of emulsion or water contamination. Took the rad cap off slowly, no hiss, no water shooting
    out. (Dint think too much about it, other than that lost pressure quickly). Tried starting it again, ticked over nicely, remembered to look at the oil pressure, normal for tickover, increased to normal for higher revs. Before the Red took off again knocked it into drive went down the length of the lay by put foot on brake, pedal went to the floor. Tried reversing back to start point, a lot slower than went forwards !! again brake pedal went to the floor. Brake reservoir fluid level not gone down. Gave up and sat twiddling thumbs.
    So . . . . . if rad cap was faulty and not pressurising, may have caused water to boil ?????
    Engine ticksover easily and freely revs soon after, no head gasket problems ??
    Binding brakes boiled off the fluid allowing pedal to go to the floor ???
    MOT man was wrong and binding brakes were a problem and caused everything else, excess power needed, therefore overheating etc etc ???
    Anyone wanna buy a car !!
    Last edited by Omen; 23 May 2016, 12:37.

    #2
    I see no one else wants to say it, so I will...

    If I was being asked to be brutally honest, I would say you have at the least a blown inlet manifold gasket
    feeding the rear cylinders with coolant, but far more likely a blown head gasket.

    Additional: It is possible that the impeller has come adrift from the water pump, or the pump gear failed, and you simply don't have any circulation - odds are the couple of times it has cooked will have cattled the head gaskets, but while the inlet is off, it would be mental not to pull the pump cover and check that out

    As to the brakes, I notice from another thread that you changed the master cylinder seals - if your pedal goes to the floor, I'd look to see where that job went wrong....

    As to buying the car, £50 delivered to Surrey? After all it doesn't run and the brakes are knackered

    Russ
    Last edited by GDPR; 23 May 2016, 18:43.

    Comment


      #3
      +1 for head gasket. The symptoms are pretty much the same as mine. Hope the studs come out as easily as mine did.

      If I were you I'd listen to Russ about the brakes. If the master cylinder seals needed changing, the bore might be corroded which won't improve your stopping distance. A new master cylinder wouldn't be a waste of money.

      Richard
      Richard
      Mabel is a white 1972 Mk1½, TV8, Mo/d.

      Comment


        #4
        Mmmm thanks Kryten. Personally I find your colleague Rimmer more optimistic !!
        Curious why the rear cylinders ?? Is there a weakness there that makes it the more likely option ? The pump or possible lack of pump is an option I thought of. I'm going to see if it will drive round to my garage tomorrow, as have to change the lower front suspension bushes for the mot. It's only about 15-20 yards, but hopefully will give a better indication as to the state of things. Assuming the HG is blown and cylinder pressure is in the cooling system, is a fairly immediately noticeable symptom.

        Comment


          #5
          Rimmer is only a Technician, Second Class so not to be trusted He's also a Smeghead

          The inlet manifold at the rear carries the cooling jacket from both heads, and if the gaskets go, and they do, AND especially if the incorrect type of gasket is fitted without the runnel cut in the gaskets then leaks can find their way into cylinders 5,6,7 and 8
          Last edited by GDPR; 23 May 2016, 19:42.

          Comment


            #6
            Richard, at this stage nothing is ruled out. As to studs coming out easily, why would they be different to anything else I do on this beast. I used to think the Jaguar 420G I had was difficult to work on. Piece of cake compared to this.

            Comment


              #7
              I'm always doing heads on these - approach it the right way with the right tools and all will be well

              Comment


                #8
                Originally posted by kryten View Post
                I'm always doing heads on these - approach it the right way with the right tools and all will be well
                Who are these "right tools" you refer to, Russ???

                As a forum mod' I believe you should report yourself to yourself for besmirching the good name of us ordinary tools....

                Unless, of course, you're willing to post a complete list.... . Freedom of information; it's jolly topical right now...

                Having said all that; I don't doubt you're right though....

                Comment


                  #9
                  As the Data Protection Officer for our business, I must inform you that you don't have clearance for that information. Please submit an official request, and I will chuckle for the next 40 days before I lose your forms

                  Comment


                    #10
                    Well confused now.
                    Couldn't stand the suspense of waiting till tomorrow. Started it up, let it just tickover with the occasional Rev to about 1500, Didn't Rev it more than 1500rpm. Ticked over as evenly as ever.

                    So the price has gone up.
                    Last edited by Omen; 23 May 2016, 20:32.

                    Comment


                      #11
                      image.jpgDid head gaskets a few weeks ago - the car ticked over great, but the gaskets leaked on four cylinders

                      Comment


                        #12
                        £100 and I'll collect it?
                        Richard
                        Mabel is a white 1972 Mk1½, TV8, Mo/d.

                        Comment


                          #13
                          £150, and throw in any spares - I'll get Parcelforce to pallet it down ;p

                          Comment


                            #14
                            If only Russ would tell us who the right tools are; we could all go round to Omen's place and drag the poor thing over to Russ's for free. Then, with all the right tools round at his place, he'd be able to fix it.....

                            With brilliant ideas like this one - I should be in with a shout of becoming a right tool pretty soon I reckon...

                            Comment


                              #15
                              Originally posted by kryten View Post
                              [ATTACH=CONFIG]37437[/ATTACH]Did head gaskets a few weeks ago - the car ticked over great, but the gaskets leaked on four cylinders
                              Oh.

                              What about a compression test ?
                              If you hadn't guessed I really don't want to take the heads off if I can avoid it.
                              Last edited by Omen; 23 May 2016, 21:10.

                              Comment

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