Hello everyone! I have a 235 that developed a miss this weekend. I looked at ignition first but all plugs and wires are functioning properly. I pulled valve cover found #4 intake pushrod bent at top right under adjusting screw. Also had 0 compression on said Cyl. pulled head to find that head gasket between #4and #5 gone. Has anyone ever had this problem. Taking head to machine shop to have # 4 valves looked at and to see if head is straight. Block will be straight edged when cleaned. Truck sat for 10+ years previous owner pull started the heck out of it in 1st gear thought it was seized. It WAS NOT!!! I have read that pushrods bend when valves stick from non use. I think this is a previous issue not related to miss. There is no evidence of gasket in intake valve seat that I can see. No marks on piston or valve or on the head that I can tell that there was no interference. I am going to put new gasket set, pushrods, and if head is straight put back together. Please any suggestions would be great if I am missing something.
My engine SN is F418B. That is behind the Distributer, and that's all the numbers. Block casting says its a 235 head casting is 3836848 block is 3837004 engine SN could also be F4I8B it looks like an I however I think it's a 1
Sorry so long winded thanks for looking and Responding
Jim Hester