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Re: 1936 Engine Rebuild [Re: JB_1936] #1314358 Fri Jun 14 2019 11:58 PM
Joined: Dec 2003
Posts: 1,086
MikeE Offline
Shop Shark
I have never heard of cam gear teeth shearing off. There is an oiler on the front plate of the engine that could possibly get clogged. I would also guess that the cam could be seized or for other some reason stopped. To shear the teeth, the crankshaft gear would have to be turning. I would recommend a good internal cleaning of the engine. While it is apart, drop the pan and clean out the sludge in the bottom. When and if the shop gets it running use one of the several techniques suggested here to run a cleaner through the engine while running. I would check to see if you have oil to the rockers, if not spray some cleaner into the supply tube, let it sit for a while and use a little air to blast out any blockage.

The decision to replace or not should be made after a compression check after the internal cleaning. You may also want to run some top cleaner through the Carb to do some clean up in the head. My guess is that you have to make a decision to rebuild or replace, just replacing parts without figuring out the cause is not going to work out for you in the long run. It also depends on your goals for the truck. If you decide to replace, make sure your new engine will fit into the engine compartment and link to your drive shaft, and other components.

1946 1-ton Panel
1952 1-ton Comml. W/Grain Body
My Webshots Album
Re: 1936 Engine Rebuild [Re: JB_1936] #1314396 Sat Jun 15 2019 04:13 AM
Joined: Jan 2001
Posts: 4,835
Pre '68 Dave Offline
Shop Shark
Who in Monroe has the engine?
I live about seven miles from there. I was unaware that anyone close by was working on these old engines.

See the USA in your vintage Chevrolet!
My Blog
Re: 1936 Engine Rebuild [Re: JB_1936] #1314578 Mon Jun 17 2019 02:17 AM
Joined: Mar 2004
Posts: 3,917
Mike B Offline
Shop Shark
Your fiber timing gear was wiped out due to a plugged up oil nozzle. If engine sludge makes it into the 1/16" nozzle orifice it will stop the oil flow that lubricates the timing gears and the steel crank gear will eat the fiber cam gear.

Replacement fiber cam gears are available. At one time you could get over-sized fiber cam gears to compensate for worm steel crank gears.

Mike B smile

Re: 1936 Engine Rebuild [Re: Pre '68 Dave] #1314783 Tue Jun 18 2019 06:40 PM
Joined: Jun 2019
Posts: 4
JB_1936 Offline OP
New Guy
Thanks for all the information. Dave... the car is currently at Rods, Rides & Customs in Monroe (used to be Moslander's). Do you have any information on what's needed to convert to a 235?

Re: 1936 Engine Rebuild [Re: JB_1936] #1314786 Tue Jun 18 2019 07:31 PM
Joined: Jan 2001
Posts: 4,835
Pre '68 Dave Offline
Shop Shark
This is the list from one of my 235 conversions in a 1936.
Check your PM for more info.

• 1946-47, 4 speed, front bearing retainer

• 1938-47 truck bellhousing

• 1938-39 pass clutch fork

• 1942-53 Flywheel

• 1938-54, Clutch disc & pressure plate 9”

• 1937-48 Valve cover

• 1941-52 Water pump, with my adapter.

• 1949-54 Powerglide, 4 field starter

• 1937-51 Fuel pump

• 216 distributor with 235 gear

• 235 carb

Picture of front mount modification, as a 235 is shorter than the 36 engine.

Attached Files
1954 261 Ken Masden 009.JPG (137.99 KB, 104 downloads)
ken 36 001.JPG (169.54 KB, 87 downloads)
ken 36 002.JPG (224.78 KB, 83 downloads)

See the USA in your vintage Chevrolet!
My Blog
Re: 1936 Engine Rebuild [Re: JB_1936] #1316680 Fri Jul 05 2019 11:08 PM
Joined: Feb 2011
Posts: 1,001
Truckrolet Offline
Shop Shark
Originally Posted by JB_1936
Thanks. I called Buds and they're booked for the next couple of months. Does anyone know user Pre '68 Dave? He's posted some good information and appears to be located in WA. Was wondering if he might know someone? Unfortunately, I can't send him a message until I'm off of moderation.

Booked? I'm real curious what kind of work they are booked for, there can't be that many car engines to work on these days. I see they do industrial work as well. So how is the project going?

Ret, Machinist , Industrial Engine
Engine specialist
Re: 1936 Engine Rebuild [Re: JB_1936] #1316811 Sat Jul 06 2019 11:10 PM
Joined: Aug 2010
Posts: 760
GWWirth Offline
Shop Shark
I know a good place in Portland OR. They did my 46 216 and knew how to set the splash oilers and machined for insert rod bearings. They ran oil pressure tests before I took the engine.

Re: 1936 Engine Rebuild [Re: JB_1936] #1316813 Sat Jul 06 2019 11:42 PM
Joined: Sep 2001
Posts: 28,585
tclederman Offline
tsk tsk "splash oilers"?

"full pressure" main bearing lubrication.

piston connecting-rod bearing lubrication:
- rod dippers at low speeds, and,
- at higher speeds: oil-pump-provided directed oil streams from aimed nozzles

1942-1947 engine oiling system

1954 3106 Carryall Suburban - part of the family for 48 years
1954 3104 5-window pickup w/Hydra-Matic - part of the family for 14 years
Z-series (54/55) GMC 350 (2-ton) COE - now part of Dave's family
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engine are not "splash oilers" - this is a splash oiler.
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