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  #1  
Old 02-24-2013, 03:31 AM
Bighomedog11 Bighomedog11 is offline
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Default Timing belt broke.. Now wont start

Hey, my timing belt broke the other day when i was driving. And i change it out today and for some reason my engine still wont start. It was running fine before the belt snapped. What could be my problem?
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Old 02-24-2013, 05:19 AM
djfllmn djfllmn is offline
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Default Re: Timing belt broke.. Now wont start

timing is off
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Old 02-24-2013, 06:25 AM
tomboy tomboy is offline
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Default Re: Timing belt broke.. Now wont start

If you got the marks lined up right, and the crank sensor didn't get damaged, it will run.
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Old 02-24-2013, 10:08 AM
Rangerman49 Rangerman49 is offline
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Default Re: Timing belt broke.. Now wont start

Quote:
Originally Posted by djfllmn View Post
timing is off


This ^^^^ your probably 180degs off on the crank...Before you tear into it again ,remove your plugs and take a compression check. You can even look at the Tone Ring for the gap to be at the top near where the crank sensor would be..
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Torque it down till it breaks off, then back it off 1/4 turn.
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Old 02-24-2013, 10:54 AM
lewisk5 lewisk5 is offline
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Will these Ford engines be damaged when a timing belt breaks? I have heard of other types engines having extensive, costly damaged when timing belts break.
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Old 02-24-2013, 10:57 AM
djfllmn djfllmn is offline
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You're fine with your motor

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  #7  
Old 02-24-2013, 11:01 AM
Bighomedog11 Bighomedog11 is offline
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Default Re: Timing belt broke.. Now wont start

Were is the Cam shaft sensor at? Also i think i have it time rite, I had all the dots lined up and i have the big pulley keyway at the 12 ol**** postion
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Old 02-24-2013, 06:42 PM
lewisk5 lewisk5 is offline
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Thanks.
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Old 02-24-2013, 06:59 PM
pooleo pooleo is offline
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Default Re: Timing belt broke.. Now wont start

Does the motor at least attempt to fire? Are you getting spark? Fuel? Compression?

Id bet your 180 out.

There is 4 strokes to the motor. It starts at TDC. That is, piston at its highest point, both valves closed. It then goes down and opens the intake, sucks in air fuel. Right at the bottom of the stroke, the intake valve closes. The piston then comes up, compressing the fuel and air. At the top of the stroke the plug fires, igniting the fuel/air combo. The piston then gets driven down again. When it comes back up, the exhaust valve opens to let the exhaust gas out.

Basically, the valves should be closed and right when the piston reaches TDC with fuel and air, the plug ignites. Forcing the piston back down, then it comes up with the exhaust stroke and out the exhaust valve.

If its 180 out, the intake valve is opening right when its firing, wich will make it not run.
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Old 02-24-2013, 07:26 PM
stateranger stateranger is offline
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Default Re: Timing belt broke.. Now wont start

Quote:
Originally Posted by Bighomedog11 View Post
Were is the Cam shaft sensor at? Also i think i have it time rite, I had all the dots lined up and i have the big pulley keyway at the 12 ol**** postion
Did you line up the dot on the crank with the mark on the block. Also the cam gear has two markings on it a diamond and triangle. The mark on the back part of the timing cover is a triangle. You have to line up both triangles.
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