Question about Cars & Trucks
2000 mazda 626 6 cyl replacing water pump, of course had to take out timing belt so ok here we go. put everything back in its place and i mean TDC. All my marks lined up and ready to go. I even turned it over to revolutions and still came up TDC. Wonderful right, wrong. Closed everything up, took it for a test drive and oops something jumped. Took it apart again to find the timing belt jumped a tooth. Hmmm? The camshaft pulleys seem to stay in place but the crank pulley/harmonic balancer seems to have jumped a tooth.Hmmm? everything is on tight tensioner is good, belt is new so what in the mechanical world is going on? On the test drive loss of power and backfiring in the airbox. the car already had a misfire pulled code P01409, could a misfire in the engine cause the timing belt to jump? Out of ideas just really fustrated. Help
YES! Straighten out the T belt & look for any misfires. If u have any spring loaded pulleys or tensioners, REPLACE THEM. Did U have a misfire before u did the work?
Posted on Mar 14, 2017
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Posted on Jan 02, 2017
hello ive read you questions and the other experts answers and they all have good points i just wanted to give you my point of view
this belt tensioner is to be locked down so it doesnt move once the initial adjustment is made. what i like to do is turn the crankshaft by hand to pull tight the belt on the non tensioner side and this is when i lock down the tensioner .
and yes when a car like this comes in we alway recomend water pump, tensioner , and any other idler pulleys that each vehicle may need also we take care of any oil leaks at the same time . oil or antifreeze getting on the belt will deminish the belt life.
and on your question on the cam brgs being loose , the cam is the length of the engine and it wont move enough to cause this kind of problem you would see a large oil leak first.
just a note
we do alot of customer cars that families take on vacation, and i dont want to be the one to ruin someones vacation by trying to save a buck. and when you are paying labor to have a belt replaced you expect it to reliable again.
let me know if i can help with anything else
Posted on Sep 29, 2008
SOURCE: 1992 ford tempo 4 cyl
I had this same problem a while back, water pump... replaced the water pump and all was well. If you run it for very long without you'll kill it. Hope this helps, KJS
Posted on Oct 05, 2008
After checking around, I decided to replace the harmonic balancer. I had a repair shop fix it for me and I think they over charged for the part. But, at least I'm on the road again. This Grand Am has 227,000 miles and still runs pretty good.
Posted on Jan 17, 2009
Hi my name is juan and lets try to solve this it is possible that when you rotated the camshaft the distributor last his position and this is why it won't start it may not be the problem but this happens a lot so open your distributor and aline up your marks on camshaft and the crankshaft then make sure the distributor is pointing near the #1 spark plug if is opposite give it a 1 more turn to the crankshaft line up your marks again and se what happens #1 spark plug is the closets to the front part of the engine on 4cil
Posted on Mar 26, 2009
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