Guest Posted February 15, 2014 Share Posted February 15, 2014 Morning, Well I put 20 litres of fuel into the car, disonnected the inertia switch, turned the car over and got 2bar pressure. I reconnected the inertia switch, turned to position 2, heard the fuel pump and hit the red button. The engine fired pretty much straight away, the smoke of the exhaust primaries was worrying at first then we decided it must just be something burning off. The question then : When running at standstill in the garage, I am at 6 bar pressure is this about right ? The engine is a duratec 2.0L, Roadsport 175. Thank You Andrew Link to comment Share on other sites More sharing options...
Guest Posted February 15, 2014 Share Posted February 15, 2014 Ok, a bit more tinkering and running and I now have the following going on which I think is correct. Cold start 6 bar Warm idle 2 bar Warm Revving 2-6 bar The fan kicked in at 90 degrees aswel so all is well so far. I did have to tinker with the throttle cable screw set point to get idle to be 1500 rpm. It was 2500 -2700rpm with the original screw set point. Link to comment Share on other sites More sharing options...
Dr Slotter Posted February 15, 2014 Share Posted February 15, 2014 That is roughly what mine is (year old Caterham electrical sender). Link to comment Share on other sites More sharing options...
Leadership Team Garry7 Posted February 15, 2014 Leadership Team Share Posted February 15, 2014 Yep, your numbers are the same as I got, and still have 10k miles later. Not sure you are meant to adjust tick over with that screw though? I have been told that it's a laptop job? Link to comment Share on other sites More sharing options...
Guest Posted February 15, 2014 Share Posted February 15, 2014 Ooops. I'll phone Derek. It just seemed logical that it was stopping the arm from fully rotating. Link to comment Share on other sites More sharing options...
Guest Posted February 15, 2014 Share Posted February 15, 2014 I did the same Andrew. The engine was revving at something like 2750 at idle until I adjusted the screw. Now it could be that Caterham have since plugged it into a computer having had it back for the post build check but I'm not sure. Perhaps mention it to them just to see if its an issue. Tom Link to comment Share on other sites More sharing options...
leon Posted February 16, 2014 Share Posted February 16, 2014 Figures all sound right. I would suspect that the idle screw is set to give a fast idle at first start so than the cams get the correct revs to bed in for the first few mins, idling too low will effectively knock some of the lobe off due to bedding in against the valve springs if allowed to idle at 1400 rpm on first engine start. Link to comment Share on other sites More sharing options...
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