General rebuild or replace head

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General rebuild or replace head

rasouth

New member
Joined
Nov 18, 2009
Messages
17
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Location
California
Help! I am having problems with my '78 124 motor. At one point it was knocking after it warmed up. I adjusted valves with no luck, changed to a heavier oil, no luck, removed camshafts and did not find any real damage to cams or any broken springs. I removed head and other than the valve heads being a little pitted I did not find anything wrong, so I cleaned everything up and replaced with new gaskets. Now it is knocking/clacking intermittently from the camshaft area (sounds more like the intake side). Camshafts are aligned correctly with crankshaft, starts easily, runs a little rough, getting good spark to all cylinders, oil being pumped to camshafts.
I'm at that point where I am not sure if I want to rebuild head myself or buy one for around $500. How hard is it to remove and replace valve guides?
 
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