Remy
22nd November 2008, 10:31 PM
Hey Ron or others,
Can you give me some advice on doing this (removing the shim) as the picture on rover.net doesn't show me much. I was going to buy a used compressor but from talking to Ward at Graeme Coopers suggested that might be worth checking to see if the shim is out and doing this first. Unfortunately it was to late in the day to get more info. Aircon runs fine, has gas and runs until it heats up then the clutch disengages.
P.S. Gas injection in and Haltech installed dual mapped for LPG and petrol. Bloody brilliant on petrol but i reckon some improvement can still be made on the on gas. 97Kw for both! The gas map (fuelling side) isn't touched by Ward only the gas ignition timing and looks a little odd the way the gas is fed in (not smooth). I will post graphs later when i get to a scanner. All that said very happy.
"Compressor Clutch Failure:Another common A/C problem is insufficient voltage to the magnetic compressor clutch; as the disk and pulley gap increases with wear the available magnetic flux has to bridge a larger gap. There is an official Land Rover fix for this in the shape of an additional wiring harness which dedicates a new circuit, with its own relay (relay #10 in the engine fusebox), to the magnetic clutch. A quick fix short of this official repair was devised by Andrew Parker. He found you can remove the shim washer from behind the disk and flexure plate (see picture at right by Ron Beckett) to reduce the gap. The shim washer fits to the centre boss of the plate. I have heard from several people who have had good success with this technique."
Can you give me some advice on doing this (removing the shim) as the picture on rover.net doesn't show me much. I was going to buy a used compressor but from talking to Ward at Graeme Coopers suggested that might be worth checking to see if the shim is out and doing this first. Unfortunately it was to late in the day to get more info. Aircon runs fine, has gas and runs until it heats up then the clutch disengages.
P.S. Gas injection in and Haltech installed dual mapped for LPG and petrol. Bloody brilliant on petrol but i reckon some improvement can still be made on the on gas. 97Kw for both! The gas map (fuelling side) isn't touched by Ward only the gas ignition timing and looks a little odd the way the gas is fed in (not smooth). I will post graphs later when i get to a scanner. All that said very happy.
"Compressor Clutch Failure:Another common A/C problem is insufficient voltage to the magnetic compressor clutch; as the disk and pulley gap increases with wear the available magnetic flux has to bridge a larger gap. There is an official Land Rover fix for this in the shape of an additional wiring harness which dedicates a new circuit, with its own relay (relay #10 in the engine fusebox), to the magnetic clutch. A quick fix short of this official repair was devised by Andrew Parker. He found you can remove the shim washer from behind the disk and flexure plate (see picture at right by Ron Beckett) to reduce the gap. The shim washer fits to the centre boss of the plate. I have heard from several people who have had good success with this technique."