Re: Need help with timing for 1966 ford 3cldr gas tractor 20

Posted by Steve@Advance on May 27, 2022 at 15:15:17 from (99.190.215.237):

In Reply to: Need help with timing for 1966 ford 3cldr gas tractor 20 posted by SeeMRun on May 27, 2022 at 13:04:17:

Here is a step by step procedure.

Find the timing mark as described below. Not sure what is stamped on the
flywheel, but find some type mark, try to read the numbers or whatever is
there. You want to find something that will tell when the crank is at or
slightly before TDC. Try to mark the mark with white chalk or something easy
to find again.

Then with the #1 spark plug removed, hand turn the engine while holding your
finger over the plug hole. When you feel air pressure, keep turning until you
see the mark line up.

It is now close enough to put the distributor in or check to see if it is
right. The rotor should be pointing at the #1 cap terminal. To get it exact,
with the distributor loose, rotate the housing the same direction the rotor
turns until you are past the cap terminal, then slowly rotate the housing the
opposite direction until the points just open. You can put a test light on
the - coil terminal to ground. When the light comes on, the points have
opened. Snug the distributor down, it is close enough to start. From there it
can be timed with a light or by ear. The engine is not critical on timing. If
it starts and runs well without kicking back against the starter, clattering
under load, has good power, it is good.

Now if it still won't start...

Double check the firing order, just to say you did.

Check for a blue hot spark at least 1/4 inch to ground at the plug end of
each wire.

There is a drain plug in the carb bowl. Have a clean glass ready, pull the
plug and catch the flow. It should drain the bowl, then while cranking the
engine it should have a substantial flow. If the bowl was empty, or there is
no flow from the fuel pump, there is a fuel delivery problem.

Look at the fuel the was caught. Check for water, rust, debris. If
contaminated the tank and carb may need to be cleaned.

If all looks good, replace the plug, crank the engine to refill the carb
bowl. With the coil wire grounded to prevent starting or backfire, disconnect
the air cleaner hose, hold your hand tightly over the air horn of the carb,
crank the engine through. You should get strong vacuum and your hand wet with
gas. If no vacuum, there are valve problems. If vacuum and no gas, there is a
fuel problem.

If the engine has not been run for a while, a spoon of oil in each cylinder will help raise the compression.

Also the fuel pump and carb may be gummed with dried ethanol fuel residue from sitting unused.

And check the air intake and exhaust for mud dobber nests, bird nests and rodent packings.

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