Re: F-20 Engine Assembly

Posted by Janicholson on March 12, 2007 at 11:16:04 from (199.17.6.122):

In Reply to: F-20 Engine Assembly posted by SproutW on March 12, 2007 at 08:12:09:

Sprout,
If the pistons are domed, and the only part of them sticking up are the domes, you are probably OK. But if the round part of the piston is sticking out they are the wrong pistons for sure.
Put a 1/8" thick layer of modeling clay on the heads of both valves in one cylinder. Put the old head gasket on the block (dry). Put in 4 head bolts at that cylinder, and tighten them 1/4th the normal torque. Assemble the valve train using only those two pushrods on that cyl. Adjust the rocker arm about three turns out from where it was when disassembled. :::then::: Hand turn the engine very carefully feeling for resistance as it is turned. Make sure it rotates 2 turns to assure both valves are actuated. If no resistance (contact) is felt, adjust the valves in one turn and do it again. if no problem, adjust the valve to specification, and turn again.
Then dissassamble the head and look at the clay. If it is unmarked, yopu are good to go. If it is dented, and in no place closer than .050" I would go ahead with assembly. If it was pinched to less than that I would cut a smoothed edge relief notch in the piston, with a dremmel tool, where it touched to assure no interference. I hope this helps, JimN

Replies:

• Re: F-20 Engine Assembly SproutW 11:54:53 03/12/07 (1)
  • Re: F-20 Engine Assembly Janicholson 20:45:02 03/12/07 (0)

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