1998 Ford Contour Timing Off Backfire

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DAWN39JONESBORO
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  • 6 POSTS
how do you line up the timing when there are no indicators on how too? the belt is fine coil is fine but still back fires when trying to start it, we tryed other firing angles with no luck same thing back firing
Nov 18, 2006 at 6:29 AM
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CATCH_15
  • ✓Experienced Mechanic
  • 250 POSTS
I'm not familiar with that particular engine, but overhead cam engines go by the same principles. There should be a mark on the cam/cams which will line up with the top of the head when the number 1 cylinder is at top dead center on the COMRESSION stroke. All of the valves to the cylinder are closed. At the same time, there should be a timing mark on the crankshaft pulley which should be lined up with a mark that is on either the timing cover or the front of the engine. When you have all of these lined up, and I'm assuming it is a distributorless ignition system, it should be good to go.
Nov 18, 2006 at 11:09 AM

Suggested Repair

Set cylinder 1 at top dead center on the compression stroke with all valves closed. Align the cam mark(s) with the top of the head and the crankshaft pulley timing mark with the mark on the timing cover or front of the engine.

Conversation Summary

The owner of a 1998 Ford Contour says it still will not start, the timing seems off, and it backfires despite a good belt and coil and other firing angles. The expert, unfamiliar with that engine, explains general overhead-cam timing: align the cam mark(s) with the top of the head at number 1 TDC on the compression stroke with the valves closed, and align the crank pulley mark with the timing cover or engine-front mark.

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