October 12 - 19, 2002
When we took the engine apart
we were very careful to keep tract of where the pistons, rods, bearing
caps, etc. went, so we could put them back in the proper order. Unfortunately,
we were not so careful with all the external engine parts and
pieces. Mostly they just got tossed in a couple of plastic
buckets. On hindsight I would not recommend this procedure. It
added considerable time and frustration to the job of putting the parts
and pieces back on during assembly, mainly tying to figure out which bolt
went with which part.
The weekend after we finished rebuilding
the bottom end of
the engine I took the buckets of bolts, brackets, and other assorted
pieces back to my house in Grand Island to clean them up with the wire
wheel on my bench grinder. Prior to attacking the parts with the
wire wheel I used diesel fuel to remove the grease and gunk.
the process of cleaning up the parts I culled out those that looked like
they would need
replacing. All of the exhaust bolts and water pump bolts were severely
eaten up with rust and would need to be replaced. The rest of
the bolts, brackets, etc. looked to be in surprisingly good shape.
After cleaning up the parts on the wire wheel I returned them to the
buckets and gave them a liberal spraying with WD-40 to keep them from
I brought the small parts I had cleaned back
to Dave's place
and then spent the next several nights and the following weekend restoring
the larger engine parts. Nothing real complicated to this
work. Mostly I just removed all the grease and gunk using diesel
fuel and carburetor cleaner. I then used wet
sand paper or the wire wheel to remove any surface rust. If the part
was to be painted I wiped it down with lacquer thinner prior to applying a few coats of paint.
For the black parts I used Rustoleum satin
black. The orange
parts I painted with the same high-temp, hugger
orange paint I planned to use on the engine block. The only
"repair" I had to make prior to painting was to pound out a
couple of small dents in the valve covers.
hoist provided a handy place to hang the small parts while the paint
dried. Dave has a fairly big shop, but it's amazing how quickly it filled
up with all the various engine parts and pieces.
sheet metal that goes on the driver's side exhaust manifold
was very pitted. However, none of the pits were rusted through and
because these items are extremely hard to find I decided to paint them with a
high-temp aluminum paint rather than try to find replacements. I think they turned out well. The pitting
actually gives them a hammered look.
plug heat shields were in good shape except for a
little surface rust. I painted them with the same high-temp aluminum
paint I used on the exhaust manifold sheet metal. Hopefully the
aluminum paint will hold up well, but only time will tell.
original rubber/plastic coating that was on the sparkplug wire looms was
brittle and what little was still attached chipped off when I cleaned
these parts. To restore them I used Rustoleum Grip
Guard. It appears to be a little more "rubberized" than
the original coating but it seems to work well. One of the
small wire looms (shown in the above photo) was missing, so I made a new one
from some heavy gauge sheet metal Dave had left over from his tractor
restoration project. It was a little tedious but after painting and
"rubberizing" Dave couldn't pick out the homemade one, so I
guess I done good.
The only engine items remaining to
restore were the exhaust manifolds. The manifolds were in fairly
good condition, but they had the typical rust and "alligator"
skin from years of use.
The passenger side exhaust was the worst for wear. A piece on one of
the mounting hole ears was chipped off. It also was not the original
exhaust. I haven't been able to tract down the casting
number, but I know it's not original because it had holes for the
plumbing used with smog equipment, which Maych doesn't
I looked around town to try and find a
good, used exhaust manifold but it seems the passenger side manifold is a
rare commodity. I found plenty of used ones for the driver's side
but none for the passenger side. One day when I was checking on the
heads at the machine shop, I mentioned to the machinist the trouble I was
having finding a replacement and he said why not just plug the smog holes,
grind the plugs flush, weld any remaining hole shut, and paint. He
said he could also have them shot peened which would remove most of the
"alligator" skin. Sounded like a good plan so I left them
When I picked up the exhaust manifolds from the
machine shop they did indeed look like brand
new. They looked so good I was tempted to not paint them but after
sitting around the shop for only a couple of days they had already begun
to show signs of flash rust. I painted them using a foam brush and Eastwood's
Factory Gray High Temp Coating.
They turned out looking
great. The smog holes are invisible and you cannot tell that the mounting hole
has been repaired. I am still going to keep an eye out for an exhaust with
the correct casting numbers but in the meantime this one looks very good.
That finishes up
the restoration of the engines parts and pieces. Next on the agenda
is to clean up the engine bay. That's a job I'm not looking forward
to. I'll let you know how it went in the next episode.