Question on pushrods. The old head had been milled 0.225 and I think
the pushrods shortened the same amount. They were 9.975 inches long with a
range of about 0.020 inches according to my calipers. The pushrods we just
took out of a TR-3 engine that we got with the car, whose head had not been
milled, are 10.200 inches, again with a range of about 0.020. So, if I take
0.225 from what I think are the stock 10.200 inch long pushrods I get 9.975
which is what was in the engine with the 0.225 milled head. Does anyone
know for sure if 10.200 is the stock length?
The 9.975 pushrods are way too short for the new head which was milled a
conservative 0.135. When it is said that the rocker should be about level
when the valve is half open, just where on the rocker arm are you looking
at? The top portion towards the pushrod side of the shaft or the top
portion on the valve side of the shaft? Or do you just look at the bottom
mating surface to the valve and see if that's about level?. I put Dyken on
the valve stem and it appears that the rubbed portion is about in the middle
of the valve stem and about the 0.075 wide Kas mentions in his book. This
is with the stock 10.200 pushrods. I suppose the best way to check is the
angle above and below half open as Vizard shows in his book. I have to get
the digital protractor back to check that way.
Last question. Is there an after market valve cover that will clear the
roller rocker kit that Ted S. sells? I like that solution better than
"shimming" up the valve cover. I have to see how "legal" roller rockers are
in VSCDA and the other groups. I think SVRA allows them.
Thanks in advance,
Tim
|