flag man Posted April 8, 2014 Share Posted April 8, 2014 Having fitted a new pump, I don't now get fuel through to carb's. Is there any way I could fit the pump so that it does not connect to the cam? Seams like the is only one position the pump can go in, have removed the spacer as instructed by the supplier. Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted April 8, 2014 Share Posted April 8, 2014 It is sometimes possible to fit them with the operating lever along side the cam lobe rather than on it.Nick Quote Link to comment Share on other sites More sharing options...
Paulrobbo Posted April 9, 2014 Share Posted April 9, 2014 You Can Also Fit The Arm Behind The Cam With Certain Pumps Especially If You Take Off The Spacer But It Is Needed. Paul Quote Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 10, 2014 Share Posted April 10, 2014 there can be two pump arm designs long arm for use with spacer and short arm without spacer, not interchangeable without some thought , and they can be problems , depends on which engine you have Pete Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted April 10, 2014 Share Posted April 10, 2014 Nick_Jones wrote:It is sometimes possible to fit them with the operating lever along side the cam lobe rather than on it.Nick....and if not already re removed for checking,....its possible to fit the wrong pump and snap the operating arm off, hence no pumping Quote Link to comment Share on other sites More sharing options...
rotoflex Posted April 10, 2014 Share Posted April 10, 2014 There was a fuel pump arm in my oil sump, & I don't even remember in which decade that happened! Quote Link to comment Share on other sites More sharing options...
flag man Posted April 11, 2014 Author Share Posted April 11, 2014 Thanks all for your help and advise. This looks like an insoluable problem, Rimmers tell me this model pump has to be fitted without the spacer.If the leaver arm is missing the cam I cant see any way to fix that, even If I did get it to run on the cam if it can slip off that easily it looks like a problem just waiting to happen again,Looks like the best option might be to ditch it and switch to an electric pump? Quote Link to comment Share on other sites More sharing options...
DougBGT6 Posted April 11, 2014 Share Posted April 11, 2014 I fitted a new pump last year, similar problem. Turned out some suppliers had sourced pumps which were wrongly described as suitable for GT6. Finally got one from Canleys which worked. Quote Link to comment Share on other sites More sharing options...
BrendanD Posted April 12, 2014 Share Posted April 12, 2014 I had the same problem. PO had fitted a new pump. stopped working on the Mall, right outside Buckingham Palace. Caused some flurry of armed police activity! Quote Link to comment Share on other sites More sharing options...
Dannyb Posted April 12, 2014 Share Posted April 12, 2014 My pump from Rimmers did not have the instructions about not refitting the spacer and as a result did not pump enough fuel at speed. When I did take the spacer off it was putting out 9 pounds of pressure and floading the carbs. The best thing I ever did was fit an electric low pressure pump. No more problems and also fitted a press button to prime the carbs for when it has been left standing and the float chambers have run dry. Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted April 12, 2014 Share Posted April 12, 2014 6925 wrote:Thanks all for your help and advise. This looks like an insoluable problem, Rimmers tell me this model pump has to be fitted without the spacer.If the leaver arm is missing the cam I cant see any way to fix that, even If I did get it to run on the cam if it can slip off that easily it looks like a problem just waiting to happen again,Looks like the best option might be to ditch it and switch to an electric pump?Take off the pump,...do not touch the lever, try looking close at the lever to see if there is any shiny portion of the lever eg has it actually been touchingThen attach in and out slave pipes and operate the lever to see if it is actually pumping(sufficient)Look inside the crankcase orifice and see if the cam is OKJust a few ideas/tips Quote Link to comment Share on other sites More sharing options...
flag man Posted April 12, 2014 Author Share Posted April 12, 2014 Thanks as ever for all your help. will get this sorted in the end and let you know. Quote Link to comment Share on other sites More sharing options...
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