I'm no Willys expert, but it sounds to me like the flywheel may have been
installed wrong. I'm guessing that it had an alignment pin that wasn't used.
To prove that I am right try this.
1. Remove #1 spark plug
2. Hand crank the engine until #1 piston is at top. If the engine is a
flathead this is easy to see. If overhead valves you may have to
stick something thru the spark plug hole and "feel" the piston
coming up. Don't use anything so short that it could fall all
the way into the hole, so brittle that it could break or so hard
that it could scratch anything in the cylinder. A soda straw
might work.
3. Now look at your timing mark. If it is not in the window the
flywheel was installed wrong.
Assuming that a compression test looks OK (cam to crankshaft timing is OK)
and that you don't want to pull the flywheel and put it back on right,
I'd time the engine by ear.
Too far advanced makes the starter work really hard.
A little too far advanced makes it "ping" under heavy load.
Too far retarded gives little power.
-----Original Message-----
From: HMills16@aol.com [mailto:HMills16@aol.com]
Sent: Sunday, May 11, 2003 10:33 AM
To: oletrucks@autox.team.net
Subject: [oletrucks] Timing Problem!
I am a home garage semi-mechanic who has inherited a problem. I recently
acquired a 51 Willys Wagon that was in the stages of restoration. The engine
was rebuilt and assembled but not running. I hooked up the carb and spark
and am having a devil of a time with the timing. The firing order on the
F-134 4 cylinder is 1/3/4/2. With the 5 degree BTDC mark indexed in the
timing hole, the rotor should point at 4 o'clock and the number 1 plug.
Trouble is, it won't run that way. If I move the plugs back (clockwise), so
that the number one plug is at 7 o'clock and the 3 is at 4 o'clock and so on,
it starts and runs but has no power and seems to stall or lean out when power
is applied.
The oil pump is installed correctly, the distributor appears correct. I am
assuming that the timing marks on the timing gears are correct and more than
that I am stumped! Even at the running stage, it will not time as the
painted line on the flywheel is not showing up in the timing light at any
position of the distributor. Could my oil pump gears be off?
Anybody out there help a struggling home mechanic? This is a new one for me.
Hugh Mills
Kansas City
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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