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Hi, I have a 2000 Daewoo Laganza that one of the timming belt tensioners flew apart. I have replaced both tensioners and I am confident that I have the timming set correctly. The car won't start and when I did a compression check the 1st and 4th cylinder are at 180 ft lbs and the 2nd and 3rd are at "0" ft lbs. Does this mean that when the tensioner flew apart the valves were bent on the 2nd and 3rd cylinder. Please help as I need to get the car running for my daughter for college. Thank You
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your Daewoo has an interference engine, when the timing belt brakes the valves hit the top of the pistons, and get bent. you will need to remove the cylinder head an replace the valves.....sorry.
the other important thing is to
Rotate the automatic tensioner hex–key tab anti-clockwise until the adjust arm pointer of the timing belt automatic tensioner is aligned with the notch in the timing belt automatic tensioner bracket.
then turn engine over 2 turns and recheck marks and tensioner pointer
there is a special tool to hold gears in correct place on some of these models, but you can hold one cam at a time with a spanner then feed belt on exhaust cam then inlet cam gear
get someone to hold gears in place while you feed belt on.
the inlet cam is more prone to turn off mark more than exhaust.
if you have tensioner that needs retaining pin in when installing
you fit belt while aligning timming marks
fit tensioner as last spot to feed belt on with retaining pin in adjuster
get correct tension on belt by turning water pump so that you can flex (turn) belt 90 degrees only just while using finger and thumb
tighten water pump check flex
check all timing marks are correct
remove retaining pin from auto tensioner
turn motor over a couple of turns by hand observing tensioner arrow should hover around V mark and that all timing marks align up again(after one complete turn)
hi, it is under the upper timing belt cover between the camshaft gears.
According to the manual touching anything related to timing belt
requires removing million parts including right front wheel. I suspect
this might be an overkill just to remove upper timing belt cover.
So my advice would be to get it done by some mechanic as u will not be able to do it and may damage other parts also.
when you open your hood and you look on the valve cover you see on your left side of top of your cover a cable sticking out from a black piece that is the positioning sensor that cranksup the car
You are more likely right to think you have done some damage to the cylinder head. If you have no compression on number 2 & 3 cylinders then I would take the head off and inspect and recondition the head. You may also have damaged the pistons or rings. Anyway with out looking for any damaged parts, you will not find what parts you will need. I would get a workshop manual for the vehicle to help you. Also if you decide to rebuild the engine, fit a new timing belt.
have the same problem. no compression out of any cylinder
is it wothit fixing bent valves on a daewoo leganza
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