billproctor

Hello,
My son bought a 1990 F150 inline 6. It is running but not perfect. We went to set the timing today and the timing mark is on the bottom of the crank pulley. I put #1 plug at top dead center compression stroke and checked the distributor. the rotor was pointing to #1 wire but the timing mark is still 180 off. I believe this means that someone changed the timing chain and got it off but I wanted verification before I tore everything apart. Does this sound right? The next question is about the spout connector. Is it the connector coming from the distributor that has two wires going into a plug that is plugged into a plug with no wires coming out of it?

n00bus m@x1mus

What kind of motor? xflow? 3.9/ 4.0 ?
if it runs at all it wont be 180 out
a common fault is the harmonic ballancer shifting on the rubber mount, but ive seen a few degrees, maybe ten, but never 180
is there a timing gauge at the top of the crank? Or is it underneath, maybe this is standard on a truck, i have seen it a lot on imports but being a truck i cant see a reason with all that extra room .

The spout connector is usually green in that era has 1 wire in and 1 out.
Check that both valves are closed while u check for tdc on piston 1 if not this is exhaust stroke and not compression stroke. This will explain the 180 out on the crank but not the dizzy being at plug 1.
Also check that the pulleys are true to allignment on the balancer, if u r seeing a mark on the pulley and it is bolted on 180 out this will explain it also.