I have a 1991 dodge spirt with the 3 liter V6. I replaced the timming belt but as i try to start it i get a thump sound as it turns over. I wondering if i have to reset the cam shafts also or do they reset after the belt is broken.
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Re: broken timming belt
You do need to get the cams lined up and the crankshaft at top dead center. Though, if the belt broke, you may have bent some valves because this is an interference fit motor, meaning that if the timing belt breaks, some of the valves are left open far enough to where the pistons come up and hit and bend them, so the valves are stuck open.
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You have a parasitic drain somewhere. We have an almost identical model at work and we have an ignition problem where you can remove the key in accessory position which leaves some of the electronics on and drains the battery. Faulty light switch, interior light left on?
Sounds like timing belt not on correctly. Check timing marks are aligned correctly when installing timing belt. This vehicle should have 2-3 marks to be aligned when installing belt.marks should be on cam gear/ crankshaft gear and intermediate shaft if engine is equipped with it.
to tell you the truth, it could be a broken timing belt that causes this. if the timing belt breaks, it will not turn the crank or cam, causing the distributor not to turn. check it out! you can do it.
The timing should be set at 10 degrees with the service wire connected at 800 rpm and engine at normal operating temperature.Then recheck with with service wire disconnected it should be 8 degrees at 800 rpms.Hope this helps.Good luck.