>you don't adjust the vaccuum advance. you adjust the distributor. then when engine is running the vaccuum advance will work automatically to the needs of the engine<
As a matter of fact, the Ford vacuum advance is easily adjustable. Put a 1/8" Allen wrench through the open of the vacuum advance canister where the vacuum hose goes. Screw it in to slow the rate of advance and screw it out to speed it up. I think it works on a spring preload system.
Rotate engine to TDC Intake Stroke Remove Distributor cap Remove vacuum line to vacuum advance if equipped Remove horsehoe type clamp on side of distributor Lift out distributor
if it has a distributor you can.
By rotating the distributor.
just the top one that is the vacum advance, timing should be 2 degrees BTDC with vacum advance line removed and blocke
Computer controlled If you have a 3.0 you can turn the distributor to adjust, after you pull out the adjustment chip.
try changing the timing onyour distributor
Connect timing light in series with No. 1 spark plug Connect timing light to battery Remove vacuum line to vacuum advance unit on distributor Mark timing marks on crankshaft and stationary Loosed distribtor hold down slightly Start vehicle and move distributor slight to align timing marks
Rotate the distributor. (Don't try this unless you know what you are doing.)
factory specs for distributor position then everything else is electronic
If you are setting the timing with a timing light then it don't matter where the rotor is pointing. But if you are putting the Distributor in then yes. When it is in, It must be pointing to #1 on cap so vaccume advance don't hit the thermostat housing when you adjust the timing with a light.
I put regular 87 octane in mine. If yours is knocking or pinging with 87 your timing might be advanced too far. I had to change my distributor because the vacuum advance was advancing it too much.
Yes ANSWER No - a 1998 3.0 L Ford Ranger does not have a distributor which would allow you to adjust the ignition timing - it has a coil pack and the ignition timing is controlled by the PCM ( powertrain control module )