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Can somebody help me solve this problem: When the engine is started either hot or cold it revs to 2000RPM and then drops back to 1000RPM.I have tried the base idle and the screw is at max but revs are still high.I have replaced the stopper motor. Help would be appreciated. John

Thanks for the help. If the cam or lifters were the problem would the engine be noisy.i.e.top end tapping? John 07973938176

I bought a 1986 RR with 3.5 Carb engine. I have had the compression checked and found it down on cylinder 6 so off with the heads and grind in the valves. Re assembled and still has the missfire. Next a Leak detection showing leak on 6. Could this be a cam or lifter problem rather than ring...

I posted a few weeks ago about the missfire on the RR and after good advice I checked the compression which was found to be down on 3/4 pots. My question is ,are the heads suitable for unleaded as it seems strange to have this problem on a RR. if they are lead only can they be converted...

I think fanatic is right about the pipework but how did the car get this option as I have never seen it before, by the way it makes it bloody hard to get at the plugs. As for the the genuine parts , yes I bought original where available. Could the missfire be a sticking tappet if not I think...

I have just bought an 86RR 3.5 manual/carb and would like to know about the strange piped in exhaust gas installation running down both sides of the heads and piped into the casting.can anybody elabotrate? The car is registered as 1986 but it has a vertical radiator grill is this correct? The...