Anyone tried using the old style rockers with a new cold iron camshaft instead of the carbide ($$$$$$$) replacements ?

If intending to have the engine last I'd probably rebuild it with the right parts. Mixing parts from old to new variations is probably not a good idea in critical engine components.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I wouldnt mix them, the rockers were probably upgraded with the cam for a specific reason

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

Probably to match the harder surface of the cam.

As a general rule it is always best to replace the rockers if you replace the cam.

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!