David Taylor Posted February 20, 2021 Author Report Share Posted February 20, 2021 1 hour ago, johny said: The pump cases look different but thats not unusual as they vary depending on manufacturer however its the lever thats important cos, as you say, its got to make the correct contact with the cam. Although in your picture the levers look to be at different angles nobody seems to offer a pump that is closer to the original and that may not matter. The lever is moved through a small range by the cam and as long as its always in contact with it and obviously not forced too far the pump will work as intended. I would turn you engine by hand until you can see or feel the cam lobe is in its maximum operating position relative to the lever (about 45º from vertical?) and then try putting the pump in place by hand. You will feel resistance as the lever gets pushed by the cam and the pump internal spring compresses but the pump mounting face should meet the engine without the lever coming to the end of its travel. If the lever locks before the pump is fully in place you have a problem and the only solution might be to overhaul the old pump. Also this could be a good option because another possible issue with replacement pumps is that the output pressure is higher which may then cause a carb to overflow..... Hiya. So I can't attach the pump to the engine body, due I suspect to the lever being longer and a different angle to the original. So I'll send back the pump and try and get another which fits. Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 20, 2021 Report Share Posted February 20, 2021 most list 208493 as a straight lever for all herald and spitty upto early mkIV the spacer /arm change was from 1500 FM93158 does look very different to your old pump lever stand off have you done a fit trial as the lever only compresses the diaphragm spring and once installed could be fine other changes were push on pipes but that doesnt affect the arm configuration most reviews say a straight swap Pete Link to comment Share on other sites More sharing options...
johny Posted February 20, 2021 Report Share Posted February 20, 2021 1 hour ago, David Taylor said: Hiya. So I can't attach the pump to the engine body, due I suspect to the lever being longer and a different angle to the original. So I'll send back the pump and try and get another which fits. I cant see you'll get anything different unless you manage to find NOS. As Pete says, carefully give this one a try.... Link to comment Share on other sites More sharing options...
David Taylor Posted February 20, 2021 Author Report Share Posted February 20, 2021 OK guys. So after a little bit of fettling, I've now fitted the new fuel pump. And .... no fuel is being pumped! Either it is something incredibly simple that I'm not doing or there's something wrong with the engine? Just to confirm: I've bypassed the fuel tank and there is a hose directly into a can of fresh petrol The engine turns over fine and there is a healthy spark in each of the plugs No fuel is coming out of the pump at all Ideas????? Could it be the cam lobe which has been damaged? Link to comment Share on other sites More sharing options...
David Taylor Posted February 20, 2021 Author Report Share Posted February 20, 2021 3 minutes ago, David Taylor said: OK guys. So after a little bit of fettling, I've now fitted the new fuel pump. And .... no fuel is being pumped! Either it is something incredibly simple that I'm not doing or there's something wrong with the engine? Just to confirm: I've bypassed the fuel tank and there is a hose directly into a can of fresh petrol The engine turns over fine and there is a healthy spark in each of the plugs No fuel is coming out of the pump at all Ideas????? Could it be the cam lobe which has been damaged? I'd also add that the car was working perfectly all last summer before I put her in the garage for the winter. So I'm truly flummoxed as to what's going on! Link to comment Share on other sites More sharing options...
johny Posted February 20, 2021 Report Share Posted February 20, 2021 There is a slight possibility the pump lever has gone under the cam rather than on top of it. I believe if as put the pump into place you point the lever downwards this can happen so did you feel any resistance against the cam as you pushed it into place? Have you tried operating the manual lever at the base of the pump to see if that gets it to pump? Link to comment Share on other sites More sharing options...
DanMi Posted February 20, 2021 Report Share Posted February 20, 2021 I think it unlikely that the cam is damaged the cam can be felt through the pump hole. I would loosen it of and try to pump it with the lever and make sure that the petrol is not too far below the pump. It could as Johnny said be that the arm is not correctly on the cam either to the side or under, but don't discount a faulty new pump Link to comment Share on other sites More sharing options...
NonMember Posted February 20, 2021 Report Share Posted February 20, 2021 It looks to me that it's the wrong lever type and you'll need the spacer for it to work. But definitely try the hand lever, both fitted and loose, to see whether the pump itself is OK. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted February 20, 2021 Report Share Posted February 20, 2021 I posted this in a different thread; you can see the two levers for Triumph pumps. Straight arm to left is for the majority of our cars; curved one to right needs a spacer. Link to comment Share on other sites More sharing options...
johny Posted February 20, 2021 Report Share Posted February 20, 2021 ahhh Ive just noticed something in the photo of your original pump! It looks like its lever has been damaged and bent upwards as you can see a fold in the metal at the bottom. Dont know how its happened but possibly the pump jammed and the cam has forced the lever up which is why its angle doesnt match the new pump's.... 1 Link to comment Share on other sites More sharing options...
David Taylor Posted February 20, 2021 Author Report Share Posted February 20, 2021 SUCCESS!!!!!! I refitted the pump and the car started almost immediately. I then replaced some more faulty fuel pipes and took her for a 5-mile burn around the town. She's running as sweet as a nut. Thanks so much for everyone's help and happy motoring to you all 1 Link to comment Share on other sites More sharing options...
johny Posted February 20, 2021 Report Share Posted February 20, 2021 Brilliant, as I say, keep an eye out for a smell of petrol in the engine bay as people have had problems with carbs overflowing after fitting a new pump. However sounds like yours is running well👍 Link to comment Share on other sites More sharing options...
daverclasper Posted February 20, 2021 Report Share Posted February 20, 2021 Goodo. Well done Link to comment Share on other sites More sharing options...
poppyman Posted February 20, 2021 Report Share Posted February 20, 2021 1 hour ago, johny said: ahhh Ive just noticed something in the photo of your original pump! It looks like its lever has been damaged and bent upwards as you can see a fold in the metal at the bottom. Dont know how its happened but possibly the pump jammed and the cam has forced the lever up which is why its angle doesnt match the new pump's.... Obviously you don't need to go to specsavers Johnny. Well spotted. Tony. Link to comment Share on other sites More sharing options...
johny Posted February 20, 2021 Report Share Posted February 20, 2021 ha yes, though Im not very good with the big picture! I wonder what caused the damage to the pump😳 Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 20, 2021 Report Share Posted February 20, 2021 probably just fatigue/ageism yes it does on a closer glance look a bit bent but good shes running ok and the pump problem didnt turn into a marathon good stuff Pete Link to comment Share on other sites More sharing options...
johny Posted February 20, 2021 Report Share Posted February 20, 2021 I like that design of lever as its wide so shouldnt wear a groove in the cam (as Ive seen before) but it does look weak at that bend point.... Link to comment Share on other sites More sharing options...
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