M-3 was removed from the EBT property last year for restoration.
The initial problems included a frozen engine, torn canvas, rusty
condition of metal parts, and in general a very sad appearance.
The engine was the first concern and the head was removed only
to discover that the valves were stuck in their guides.
With the head off, the engine could be turned over with a
prybar, inch by inch.
One piston and connecting rod was removed only to discover
a cracked connecting rod bearing which was the "poured type".
[Babbitt] The cast iron piston was OK, but had a broken
ring (also cast iron).
The distributor cap had a big chunk broken out of the side.
The top running gear had also seen better days.
At this point it was agreed upon to find a reputable
antique engine restoration shop to at least give us an
estimate of repair.
Reinhold Restorations in Reinholds, Pa. was given the
task of determining the condition of the Nash engine.
Several weeks later we had our answer and also the
correction of some historical myths.
Myth #1 -----
The engine was run without oil and the main bearings were ruined.
FALSE: The mains were worn, but not ruined.
Myth #2 - ---
Someone made a new camshaft out of too soft a material and all the lobes were worn down.
FALSE: The camshaft was in incredibly good condition for an engine of that era.
Problems found:
Problem #1 -the valve ends were worn making
it possible for a valve to drop into the cylinders.
Problem #2- Nash had developed a unique early type hydraulic
valve lifter. Not as sophisticated as today, but
an impressive start. Some of these lifters were worn.
Problem #3- bent push rods.
Problem #4 - worn water pump
Problem #5- as mentioned earlier - broken distributor cap.
Problem #6 - someone replaced the original points with a more
modern set, but failed to change the geometry
of the distributor. The spark could not get to the plugs.
Problem #7-- starter of questionable condition.
Problem #8- generator of questionable condition
Problem #9- Nash transmission of questionable condition
Problem #10- Radiator of very very questionable condition
Problem #11- Radiator shroud which was originally nickel
plated was almost totally rusted.
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An estimate of $5000 was not unrealistic at this time.
The expensive part was not replacement parts, but
machine shop time which in some shops could run at $100 / hour.
It became evident that a very dedicated volunteer who
wanted to and has always wanted to remain anonymous
was interested in finishing the engine and transmission
at his shop.
This man is a master craftsman and is 2nd to none with
his experience in matters such as this. Anyway, he got
the job. Was like a pig in mud !!!
This man first had the crankshaft ground and polished.
Next he found metric Toyota aluminum pistons which were as close as
he could get to match the original Nash cast iron pistons.
Cadillac valves were as close as he could get to match the Nash valves.
Dodge valve springs completed the picture.
New tops for the valve stems were made and heat treated.
The head was machined to accept the new valves.
The head has a ½" diameter solid copper rod which was installed by
someone probably as a repair after one of the earlier valves dropped
into the cylinder and got crunched by the piston on the upstroke.
It passed a hydro test and is still in the head !!!
The Babbitt connecting rod bearings were repoured and
machined to fit the crank throws. New bushings were
made to match the new piston wrist pins.
The original insert main bearings were repoured and machined to
match the crank, the pressed in cast iron cylinder inserts were bored
out to match the bigger pistons.
The oil pump was rebuilt so the new main bearings would
get proper lubrication. The water pump was rebuilt with
more modern shaft packing.
The distributor cap with the chunk missing was filled in with a
special epoxy and then filed up to the correct contour.
Once it was painted the original color, it is impossible to detect
where it was patched unless you look inside it.
Incidentally, a new old stock cap was located, but they wanted $150
for it. They still have it! We did not buy it.
The engine was painted with what we believe was the original Nash color.
The valve cover was repainted black and given two newly machined
knurled nuts.
The starter and generator were sent to Weavers Repair Shop for rebuilding.
The radiator was sent to West Side Radiator Works in Ephrata, PA for
recoring.
In our opinion the existing radiator that we started with was not original.
We believe that a 1924 Nash would have had a honeycomb type
radiator. We are sure the Railroad was cheap and found a good
enough replacement. The recoring has given us a radiator with
fins and cores as closely spaced as what we started with.
The new core is slightly thicker to insure additional cooling if
required. A new head gasket was located as well as new manifold gaskets.
The transmission was generally OK for a 1924 Nash, but was old style
meaning it had no modern seals in it. The tapered roller bearings were
intact, but shot.
Machining was done to the transmission shafts so they could accept
new modern sealed bearings. The gears were only worn by 10%.
Modern shaft seals were installed where possible.
New clutch material was installed and the rebuilt transmission
was attached to the rebuilt engine.
The bottom line is this:
The completely rebuilt 1924 Nash engine with its rebuilt 1924 Nash
transmission, Toyota pistons, Cadillac valves, Dodge springs, and
manufactured parts was put to the test on December 10, 2005.
At 2:30 PM the engine ran for the first time in over 40 years.
Ran like a top. No vibration. Beautiful sound.
Mr. Charles Nash would have been proud of the master craftsman's efforts.
We found a brass tag riveted to the block with the Nash name and
a serial number on it.
This number was matched up to the production serial numbers on the
Nash Automobile Owners website and according to them it
is in fact a 1924 Nash automobile engine.
As I mentioned earlier, the man who finished the engine wants to
remain anonymous as does the author of this update.
All those now involved with this project are happy being anonymous.
We are restoring M-3 because we care enough to volunteer our time
and our dollars to make it happen without concern of being recognized
or repaid somehow.
When the M-3 returns it will be "our gift" to the world and more
importantly to our grandchildren and great -grandchildren.
The names of those before us who kept the M-3 going are lost to
history and so shall our names be lost. The M-3 will live on though.
Even if history doesn't remember our names, she does and
that's all that counts.
Anytime you change something, you have altered and changed that
integrity. This is a "total ground up restoration".
The other key word with restoration is "preservation".
The two cannot be separated.
It is our intention to deal with any and all problems which are
found with the M-3 and return her in better condition than
when she was rebuilt in 1928.
This means putting new parts in the engine that were not
original, replacing all the springs because the originals were
broken, replacing the worn ripped canvas, replacing the broken
rotted floorboards, and replacing the old paint with new, we
have been able to build an accurate representation of the M-3.
The other key ingredient being put into the M-3 in very large
amounts is pride. That's the most important thing.
More news to follow later concerning the wheels, axles, and body.