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Hey everyone so I recently just refreshed my motor out of the my 1995 f150 with a 302ci and it won't start, I'm not sure why. The biggest thing I'm concerned about is my camshaft timing. I have the gears on both the cam and crank at twelve o'clock, which is the way I took off the old ones, is this correct? This is the only thing I can think of that would keep it from starting, ive been trying to figure it out fora few days and any help is much appreciated thanks .
The timing marks on both gears have a alignment mark, if that is not aligned your timing is off. You also risk a valve hitting a piston depending on cam lift and piston height.
As Ford390 said, the camshaft gear dot needs to align up with the crank gear alignment keyway or dot.
If you did install the camshaft gear with the dot at 12 o'clock, then that would put your timing 180° out.
I think you would just have to move the position of the wires so that #1 is now at 6 o'clock instead of at 12 o'clock. Somebody could confirm this.
Or you would have to pull the water pump and timing cover and re-align the gears.
As Ford390 said, the camshaft gear dot needs to align up with the crank gear alignment keyway or dot.
If you did install the camshaft gear with the dot at 12 o'clock, then that would put your timing 180° out.
I think you would just have to move the position of the wires so that #1 is now at 6 o'clock instead of at 12 o'clock. Somebody could confirm this.
Or you would have to pull the water pump and timing cover and re-align the gears.
Well you would have to pull gears, your valve timing would be off if you left it and won't work.
I do not see why moving the rotor in the distributor would not work.
He said that it was running before with both timing gears at 12 o'clock so his distributor must have been pointing forward before when it was at TDC on #1 compression.
What concerns me is whether he moved the crank or the cam or both. If he moved anything and then put the cam gear on and just threw it back together then its definitely not aligned correctly.
We'll have to wait to see what he meant by "freshening the motor up."
Well seeing as the cam turns at half the speed of the crank, at some point both dots will be at 12 o'clock.
Basically he assembled the engine with the number one exhaust valve open and probably clocked the distribution that way.
Just align the damper at top dead center with the timing tab. Pull the distributor and spin the rotor 180 degrees and reinstall it. That is your new number 1 plug wire location, wire the rest as required by the cam firing order.
The truck should then fire.
I do not see why moving the rotor in the distributor would not work.
He said that it was running before with both timing gears at 12 o'clock so his distributor must have been pointing forward before when it was at TDC on #1 compression.
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