Distributor alignment

Tiny
TYLER LOSHBAUGH
  • MEMBER
  • 1989 MERCURY SABLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
How do I align my distributor rotor to match the number 1 cylinder on my 1989 mercury sable 3.0?
Saturday, April 23rd, 2011 AT 9:43 AM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
It would be done the same way all distributors are installed. Bring #1 cylinder up on TDC of the compression stroke and drop the distributor in with the rotor pointing to #1 plug wire contact. There should be a timing pointer at the crankshaft. Once running, time more accurately using a timing light.
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Saturday, April 23rd, 2011 AT 12:01 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Remove the #1 plug, stick your finger/ thumb into the empty hole seal it off best as possible.

"Bump" the engine until "Compression" spits by your finger. Stop bumping soon as you get the "spit" (out of 2 engine revolutions, this "Spitting" means that #1 piston is Heading for the top of the compression stroke, Which is "TDC"

Now that we know we are definitely on the compression stroke, rotate the engine by hand/ with a wrench/ ratchet. In the direction it normally turns, till you reach "Zero" or "TDC" (Pointer, pointing to this at harmonic balancer). More than 1/2 an engine rotation to get to your mark, realistically, this will probably be more like 1/4 of a rotation to hit your mark. Any more than 1/2, means you overshot the mark (too much bumping)

If you are here, the engine is calibrated and ready for you to drop your distributor in so that the rotor button is pointing to where #1 plug wire is desired on the cap.

Where ever you put #1 on the cap (That is, where ever you point the rotor button---That tower has got to be the location of # 1 wire---Your firing order will start here!

You may have to Tweak the the oil pump around with a screwdriver in order to get the distributor to drop completely down.

Your will get better at this, the more you do it.I suggest doing the compression thing 4-5 times (practice) so that you do not over-run your "TDC" mark---Over-running the mark, means your are coming up on "EXHAUST STROKE". NOT GOOD!

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The Medic
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Sunday, April 24th, 2011 AT 1:08 PM

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