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Ooh Er Betty! And inside? Ramon

Hello Reg, Kevin did say - clean your plenum? What has happened is, you have opened up the idle air channels but crud and/or friction in and around the intake mechanism is probably not allowing the throttle plate to close fully so now you have too much idle air and the ecu adds fuel to go with...

Hello Rob, With the engine idling, the A/C switched on and you standing near the open engine bay you will be able to hear if the clutch is engaging and the compressor kicks in under the control of the prior mentioned switch. If working normally this cycles at approx 3 on/offs per minute...

Oh! I agree 100% Gavin, not to overlook the possibility suggested, particularly as some service agents exemplify in rip-off mode. It just boggles the mind that it would be otherwise so obvious.

But Gavin, Surely they should have observed that the hi pressure side would get hot and cool down after the condenser and go super cold after the orifice tube and cold air come out of the vents? Its a pretty motherhood situation for anyone gassing a system, methinks? Ramon

Hello Rob, The low pressure switch does not drive the clutch, it drives the clutch relay, and the relay energises the clutch. The garage checked the relays/fuses etc but could not find a fault but when they energise the clutch the aircon is ok. So they did not have an electrician to follow...

I agree, and by the same token some of the mechanical adjustments such as the vacuum dump valve and its electrical connection and the stop lamp switch which is used in most Hella Cruise Control circuits can be on the edge of their adjustment and change with temperature. 1 Line Fuse 5...

Hello Robin, Air locks on the RV8 from an earlier period are dealt with thus: Rover SD1 Tips 'n Tricks - #2 - V8 Coolant Fill without Airlocks You may be able to adapt the process to your car. Let me know if it works. Ramon Vintage Model Airplane and Rover SD1 3500cc Twin Plenum Vitesse

My son who cut his milk teeth in scrap yards told me to always use a long lever for seized or heavily torqued threads Get a top quality 6 point socket and a long handled rachet or breaker bar - talk to Snap-ON - if you need to lengthen it use a close fitting tube on the handle. remove all...

Hello Doc, It certainly sounds like an ign switch problem already mentioned, which sorta makes the flooded drive home a coincidence - weird. Flood the ign switch with WD40 to see if it improves the internal contacts, if so inject it with vaseline for a longer term cure. If not, what could...

Hello Steve, Just some basic observations. Yes - 3 cycles per minute would be about right - more, prolly means its not fully charged - less, prolly means "baby its cold outside" so not so much refrigeration required. I'm not aware of speed control on these fans, so - No, the fans...

Hello Steve, On my older Rover AirCon system the pressure sensing tube between the (Ranco) switch and the high pressure line connected with a schraeder type valve so did not have to degas. On your more modern system I cant believe they went backwards. Call your local Aircon...

Hello John, Its gonna be those O rings, hose clips, pipes or matrix. I dont know which side they are on, but does your workshop manual show the heater matrix layout? As you continue to lose water then air will get in to replace the water and your overheating problem may return to plague...

Follow the Throttle Pot link from this index and open the PDF for the full Monty. Also loads of other test processes for Efi components. Some will apply to your car. Rover SD1 Efi System Components ramon Vintage Model Airplane and Rover SD1 3500cc Twin Plenum Vitesse

Hello Daz, observations in RED Ramon Vintage Model Airplane and Rover SD1 3500cc Twin Plenum Vitesse

Your valued knowledge gentlemen, please? Seen on the attached image of a period Rover Ignition Module fitted to various Cars including Rover SD1 Efi cars, is a condenser connected between the White wire "+12 Volt Feed/Coil +ve" and "Earth". On other period systems (eg, where the ign...

Hello Daz, Amazing isn't it? I have never owned a RR, never worked in a garage, never serviced my own cars before I retired and have only electronics as a background, and yet the dealerships, who employ folks to service cars, cant come up with some simple logic, that if the ECU says there are...

Hello Daz, Observations in RED Ramon Vintage Model Airplane and Rover SD1 3500cc Twin Plenum Vitesse

Hello ------, I would think it likely due to moisture and grime, starting two months ago when the summer monsoons hit. If you spray all the ignition components with a moisture inhibitor such as WD40 and wipe clean with a dry cloth you might eliminate both possibilities in one go. Dont...

I reckon this behaviour is defo new, I noticed it two days ago and assumed that it was my IE7 needing to be reset but as my whole PC works on single clicks this behaviour in this site is odd and new. Ramon