Where are Timing Marks

R

rogtwo@aol.com

Guest
Since I'm replacing the vacuum advance unit on my car, I thought I'd set the
ignition timing properly (right now it's set by the "yep, it runs OK"
method).

My problem is I can't find the timing marks. Where should I look for the
timing marks?

Roger St. John
White '63


[Non-text portions of this message have been removed]
 
A

a_colo_native

Guest
> My problem is I can't find the timing marks. Where should I look
> for the timing marks?
>

Roger,

There should be a line cast on the lower pulley. It will be hard to
spot because of all that is in the way. Turn the engine over by hand
until you spot it. Take a white crayon, fingernail polish or a grease
pencil to mark the line and the edge of the pointer located just
above the lower pulley.

John
 
L

Larry & Nancy Solheim

Guest
Re: Re: Where are Timing Marks

Roger,
Alernately, some crank pulleys have a BB-sized
detent cast into the front face, near the outer edge,
which is even harder to see. White chalk or crayon
tranferred to the belt edge flange is a real necessity
here also!

--LarryS (white '66)

--- "a_colo_native <minnow@amphicar.net>"
<minnow@amphicar.net> wrote:
> > My problem is I can't find the timing marks.
> Where should I look
> > for the timing marks?
> >
>
> Roger,
>
> There should be a line cast on the lower pulley. It
> will be hard to
> spot because of all that is in the way. Turn the
> engine over by hand
> until you spot it. Take a white crayon, fingernail
> polish or a grease
> pencil to mark the line and the edge of the pointer
> located just
> above the lower pulley.
>
> John
>
>


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A

a_colo_native

Guest
One more thing...

There are no graduated marks to determine what degree you are fireing
at (BTDC). I think the marks there are @ TDC(?) The fluted knob on
the side of the Lucas distributer will either retard or advance your
timing 1/2 (or was it one degree?) degree per click.

Inspect your cap and rotor! I went with the Petroncis electronic
ign/coil and it works great! She fired right up in -10! I was having
some drivability issues that I thought may be carb related. I reached
in over the dist. while it was running to check for loose plug wires
and ZAP! I got nailed by a spark about 1 1/2" that emulated from the
face of the cap <OUCH!>. The cap had a hairline crack in it allowing
the spark to "leak" to the dist base. This can be dangerous! If there
were any raw fuel to create gas vapors, this errant spark would have
certainly ignited it.

On a related note, if you go with the alternator, get a MARINE grade
one and not just a GM auto one. The marine designation means that the
brushes are covered to prevent an open spark ignition source for fuel
vapors. More cheap insurance!!!

John "Got spark?" Bevins
 
R

rogtwo@aol.com

Guest
Thanks for everyone's input on the timing marks.

After pulling the number-one plug today, and looking for when the piston was
at TDC, I discovered the timing marks were obvious.

On my car, the timing mark is a large bulge on the back side (car forward) of
the crank pulley. It is impossible to miss. I saw it before, but thought it
was in the wrong location to be the mark I wanted. Looking into the
number-one cylinder proved that it was in fact the timing mark.

Roger St. John


[Non-text portions of this message have been removed]
 
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