Jay Roeder's soon to be
more famous shop entrance sign. The little shop
with big horsepower. Located in quiet little
Waverly, IA.
The disassembly is a critical part of the race
engine building process. Jay looks at EVERYTHING
very closely. He found a couple minor things
that need attention and a few major problems
that were about to cause me some problems.
1. The piston
skirts on the right bank were getting scuffed
pretty badly and the thrust side on the left
side were showing some scuffing where the cylinder
is notched for the 4.50" stroke crank. That
means we will bore it out from 4.375" to 4.50"
and we'll end up with a 572 cubic inch Mopar
wedge to race with next year.
This is how we brought
the engine to the shop. Well, we washed it a
little so it was prettier but that was it.
2. Two of the
main caps showed signs of "walking" and he feels
going to ARP main studs will help that.
3. The bearings
were in pretty rough shape. This indicated one
of two things to Jay. I was either loosing oil
pressure for longer than I thought on some tracks
with short shutdown areas or the thin oil I
use when it is below 50 degrees was just too
thin when the engine heated up. I have a lot
of rod side clearance (.035) and with the thin
5-30 Mobil 1 it is probably not providing enough
oil film cushion and the bearing are getting
some minor damage. We will increase oil pressure
a little for next year and also switch to a
20-50 oil and use the block heaters more in
cool weather.
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