Bio
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Everything posted by Bio
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Hi Simon I think an air leak would cause poor running all of the time. First correct the throttle pot setting, this may also have some effect on the idle speed so you might have to play between the two. TPS should be 0.44-0.45. @ 1000 rpm. John
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Hi Simon You have not got an idle control valve as your car has roller Throttles. At idle your throttle pot is set a little low at 0.39 (should be 0.44-0.45). This could alter the information fed back to the ECU and reduce the fuelling at start up . John
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If you suspect fuel remove the air filter and spray some Easystart into the induction and try again, if no go it must be something else. John
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Hi Roger Might be able to help I have a pit in the garage and live close to you in Kings Langley John
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Hi Alex You could try to bond it directly to the roll bar with black Silicone.....Worked for my high level brake light. John
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Hi Peter Fun isn't it Are you using the original ECU or does it need the VVC variety 🤔 Would be good to have the VVC wiring diagramme AND TangoMikeRomeo's car as well. Always willing to help. John
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Just fitted a Caterham supplied 74 degree stat and had to reduce the diameter to make it fit. The rubber seal was a Chanel shape in section thus when installed on the stat increases its diameter. Use plenty of silicone grease as well. John
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Try changing the temp gauge sensor and fit a new stat (Caterham 74 degree R500) or Halfords 82 Degree. Ensure that the stat has a 3.00mm hole drilled in the flange. The fan should cut in and out, if not test the fan by shorting out the wires at the rad switch and ensure the rad is completely full by removing the top rad bleed bolt and filling from there. John
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Does it actually overheat or feel very hot under the bonnet 🤔 Your vidio's shows the temperature gauge rising very rapidly...almost too fast to catch up with an increase in engine temperature. If the alternator voltage regulator was u/s could too high a voltage at higher RPM cause the gauges to go funny and also have some effect on the ECU. John
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Have just had this very problem.....At idle the bottom hose and bottom half of the rad should be nearly as warm as the top. If the stat does not open you will get very little circulation. The old stat removed and found to be defective did not have a hole in the flange and was rated at 88 degrees. The new stat supplied by Caterham was 74 degrees and had a hole in the flange partially obstructed by a plastic widget. John
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Adjustment screw nearest to engine block is the idle. Centre screw is balance. Other one full open stop. Balance best possible left bank of two to right bank and then set idle to 950-1000 Rpm and check throttle pot is at 0.45 ohm pins 1&2 with meter on 20 k scale. Throttle pot adjustment is very sensitive and is achieved by loosening the pot fixing screws and rotating the TPS body. Adjustment is limited and you may need to elongate the TPS holes. John
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Is your car a K series 🤔. Is the stat mounted on the engine block at the pump / hose connection 🤔 Caterham now supply a 74 deg stat with a 3.0mm hole with widget. With no airlocks and a working stat when warmed up the bottom hose should be hot too. With the 74 stat instead of the original 88 the stat should open and allow circulation before the fan starts up (if the fan is controlled by a rad sensor) .
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Snowy at the top, ok from me down to the lane. Welcome to pop round.
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Hi Phil After speaking to Mark I have measured the Throttle Pot voltage at idle again and found it had moved and was a little high @ 0.50 I removed the T Pot and slotted the screw holes to allow more adjustment without being rotated hard against one side of the adjustment hole.....Now back to 0.45 Now runs as smooth as a........ John
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Will do *thumbup*
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Hi Phil Wash in warm soapy water, rinse, dab dry with paper towel, and put in a warm place overnight to completely dry. Treat with a fine mist of Pipercross air filter oil spray....Job done
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Glad now sorted *smile*[u
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First ensure there is no lip at the top of the bore or you should be using a stepped top ring. Then work out how far the rings travel down the bore and measure at several places in between. John
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Very strange that the car spins over fast on the starter but will not fire up. Sounds like it needs good voltage to the ECU. Will a bigger battery fit or two Gel batteries wired together. Soon be Spring
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Would have thought 4 thou is a max for a road engine....2 to 2.5 thou from new / rebore. The bigger clearance might cause loss of compression and oil burning.
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Hi Phil DOT4 should be ok and cmpatible with any residue....Moisture is the problem.
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Another *thumbup*for MTL GL4 John