crankshaft pulley

2004 CHRYSLER PACIFICA

140,000 MILES • 3.5L • 6 CYL • 4WD • AUTOMATIC

STEPHEN KARANJA

MEMBER
47 POSTS
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I bought this vehicle with a broken timing belt. the car would crank over but would not start. I was in the process of replacing timing belt and setting it up to top dead center, but realized the crank is not turning all the way by hand. it reached a spot and stops clockwise.but will turn in reverse and the stops.i read the engine on this vehicle is a non interference engine.what else would cause this problem besides a bent valve?

Mar 21, 2019 at 3:06 PM

ASEMASTER6371

CERTIFIED EXPERT
52,796 POSTS

Good afternoon,

You have a piston hitting a valve.

Most likely it has a bent valve or maybe several valves.

The heads will have to come off and repaired as needed for the valves themselves.

This is an interference engine. When the belt fails, valve damage will result.

Roy

CAUTION: If camshafts have moved from the timing marks, always rotate camshaft towards the direction nearest to the timing marks (DO NOT TURN CAMSHAFTS A FULL REVOLUTION OR DAMAGE to valves and/or pistons could result).

1. Align the crankshaft sprocket with the TDC mark on oil pump cover (Fig. 150).
2. Align the camshaft sprockets timing reference mark with the mark on the rear cover (Fig. 150).
3. Install the timing belt starting at the crankshaft sprocket going in a counterclockwise direction. Install the belt around the last sprocket. Maintain tension on the belt as it is positioned around the tensioner pulley.

Image (Click to enlarge)

Mar 21, 2019 at 3:45 PM

STEPHEN KARANJA

MEMBER
47 POSTS

Thanks a million for your expertise.

Mar 22, 2019 at 1:15 PM

ASEMASTER6371

CERTIFIED EXPERT
52,796 POSTS

You are welcome.

Always glad to help.

Roy

Mar 22, 2019 at 3:21 PM