IML: Bent Pushrods

["Eric" <gearhead@xxxxxxxxxxx>]

Steve,
Some excellent reading material on the subject of heads and the required 
measurements and tolerances thereof can be had at about this page of the 
1964 Factory Service Manaul, 
http://www.imperialclub.com/Yr/1964/FSM/html/09-015.htm
If you go thru a few pages before and after this link, you can then ask your 
machinist if they checked for the allowable dimensions for the valve seat 
grind (grind down too much and u have too much valve stem on the other end), 
for planing of the heads (too much off the heads change the lifter to rocker 
arm length and hence pushrod length), and for proper placement of the rocker 
arms if they were removed and reorganized improperly.
Happy micrometering.

Eric
Lebanon, Oregon
_______________________________________________________________
I still have some motor issues, in that the left bank on my motor after =
doing the heads and valves is still bending pushrods and has blow by.  I=
did pull the valve cover off and had another bent rod in the #1 cylinde=
r yet again.  I wonder if it is the timing chain bending them when I shu=
t it down and it somehow jumps timing?
The after having the heads done the car ran perfectly for a day before o=
ld gas clogged the pump, filter.  After replacing these I drove the car =
home, shut it off and the next morning had the bent rods.
Any suggestions? 



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