Date registered: Jan 2006
Vehicle: 73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
Location: DC Area
Mentioned: 1 Post(s)
Quoted: 96 Post(s)
The mechanic changed the cap and rotor but may have left the points and condenser. Ignition is not yet ruled out.
Athadani, the trigger points are in the front of the distributor and can be removed in less than two mins (seriously) with the use of a Phillips screw driver. Take the thing out and look for carbon, grime, crap, etc. Using acetone (nail polish remover), clean the contact points with a q-tip or used toothbrush. Do the same with the plug. Reinstall and plug the thing back in.
Honestly, I'm not thinking the problem is with the trigger points, but with the ignition points (and condenser). I replaced my Fiat's condenser with a new one, but the new one was bad too. Like my 108 previously, the Fiat ran like a bag of hammers until I installed the Pertronix. The difference was night and day.
Once you do this, I'd bet Paul's remaining arm the problem goes away.
HOWEVER, if the problem persists, I'd look to wiring or plugs/contacts. You can check this with a multimeter, and without shelling out tons of $$ at the classic center.
Tell me, did you buy the car with these issues? Have you owned the car for eons and the problem just started? Has there been a graceful degradation to the current crappily-running state?
These answers and more can aid in our pointing you toward further troubleshooting steps as required.
Last edited by Grubeguy; 11-26-2014 at 07:24 AM.