w108,107 Parts Hoarder
Date registered: Jun 2010
Vehicle: slc5.0cab 280sl5sp 280se4.5 500sl92 GONE:280sl79 4xW114/5 3x450sl72-3 280slc4sp81 280s69 73,81SLCs
Location: Philadelphia Area
Mentioned: 27 Post(s)
Quoted: 1573 Post(s)
As the point rider wears down, timing will retard a bit and can get to the point where the points don't open at low engine speed, just riding along the distributor cam. The symptom you describe is exactly what I would expect to see. It higher RPMs the points open.
So... Check to assure you have a points gap. If adjusting the points, you need to set the timing afterwards too.
My dream car is a classic sporty five speed (stick+overdrive) convertible that seats five. If, you want 70's-80's Mercedes tuner wheels, let me know.