On the Chrysler '96 LHS, when I go to turn the sprockets to set timing (water pump change) (told by auto parts store, goes counter clockwise) they bounce back to original position. I put the car in neutral. I suspect I have to release fuel pressure? If I do I am having an issue locating it and how much fuel comes out?
Thanks, Amedeo
2007-10-23 02:34:00 · 2 answers · asked by amedeobianchi 2 in Cars & Transportation ➔ Car Makes ➔ Chrysler
Remove the spark plugs.
What's happening is you're getting compression in the cylinders, and the compression is pushing back when you let go. Taking the spark plugs out will allow air to escape so it won't compress the air in the cylinder which will keep it from bouncing back.
It will also make it easier to turn the crank.
No need to release the fuel pressure, in fact, I'd recommend against it unless you're working on the fuel system itself.
2007-10-23 15:30:56 · answer #1 · answered by Mark B 6 · 0⤊ 0⤋
The valves are trying to close because of the spring on them. So they push against the cam lobes and turn the cam shaft. fuel pressure has nothing to do with it. Neither dose compression when turning the cam sprockets. When you turn the crank sprocket, turn it slow and this will give the compression time to leak down. After you install the belt turn the engine over clock wise looking at it from the front.(the way it normally runs) then check to see that it is still in time .
2007-10-26 10:53:28 · answer #2 · answered by Jackolantern 7 · 1⤊ 1⤋