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Tech Question
Kenneth East, Rixeyville, VA, 73 Plymouth Cuda, 340
After adjusting the solid lifters ( I have Crane Gold roller rockers) I find #7 exhaust and #2 intake adjusting screws flush with the locknuts. All other adj screws are sowing 3-4 threads. Any thoughts as to why just these two screws would be affected? After finding TDC I adjust both intake and exhaust valves of same cylinder according to firing order.
Ken-
Assuming that you have these lobes properly on the base circle when adjusting, I would suspect worn lifters (probably dished). Even if it's all nearly new. Pull out these pushrods and be sure that they are not bent, then pull the lifters for a looky-see. If they are slightly domed, great. Perfectly flat, OK. Any dish = bad news. If you're luckly, the cam lobes might still be OK - depending on mileage, spring pressure, etc.
Rick
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