i just did a headgasket job and a timing jod and she wont turn over! im wondering if the crank pulley for the timing set is on backwards, everything was lined up corectly but that stupid pulley could have went on either way.

i want to know if my romeo 4.6 out of my 98 f150 4x4 is a interferance engine or not(meaning if i turn it over will the valves hit the pistons)

thanks for any info.

 

the 4.6l is an interferance engine, if it is out of time or jumps time you will have valve to piston contact. I know from expereance , probalby not what you wanted to hear

 

umm ok do you think i need to replace the valves since the motor did not fire over or turn over more than once? or do you think i need to replace the valves and the pistons? hhhhmmmm what should i do.

 

if you can, verify your timing marks first, try turning motor counterclockwise to see if it moves, but pull the plugs first to make it easier