I was surfing this evening and stumbled on your post on this site. Don't know your situation but I am confused. You put in a new crank and "now" have bent pushrods? Or you are redoing an engine and after the crank installation, you were checking things out and discovered "oops we have to fix these pushrods too"? 1. Push rods can be straightened out by hand. I don't know a Fordson but have blue tractors and have had lots of F vehicles. So, I assume their valve train is similar to most internal combustion engines. You really should get a manual but basically these engines run about .016 on intakes and .018 on exhaust. This measurement is made on TDC of each cylinder when both valves are relaxed. Put a piece of wire in the sparkplug hole and feel the piston come to the top. There are 2 top positons for the valves. One is where the valves are moving (end of power stroke and start of intake stroke) and the other (end of intake stroke and start of power stroke) is where they are relaxed. This is where you insert a feeler gauge between the rocker arm and valve stem. One end of the rocker arm will have an adjustment screw and locking nut. The crank has nothing to do with your bent pushrods; camshaft lobe height, but not crank. HOWEVER if you screwed up your camshaft to crank timing in doing the replacement, you could be pushing a valve into a piston and that will bend them. Engines have alignment marks on the gears for the purpose of getting this alignment right. Usually there are punch marks and they are against one another (one on cam gear, other on crank gear). txblu
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