Question about Cars & Trucks
My 05 2.2 ecotec jumped time had the chain replaced 80,000 miles ago just replaced again and now has a rattle in timing chain area sounds like chain is loose but there isnt any play in it do the have problems with oil pumps or pressure to tensioners
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Posted on Jan 02, 2017
I am familiar with that vehicle but generally with timing chain replacement, the engine needs full access for pulley and cover removal and in some cases the cylinder head requires removal.
Generally timing chains last so that they only need replacement at engine overhaul and it is not an economic proposition to have to replace a chain unless some relative degree of engine work is also required at that time.
Engine timing chains generally have a tensioner on them which maintains tension, but some chains can wear significantly and cause timing cover to be "ground away" because of "slop".
If the engine is making the noisy rattle of the timing chain against the cover etc, I would schedule a top overhaul (head, machine, test and valve grind) with the chain replacement dependent on mileage with the degree of action.
Some simple simplex timing chains (type of chain similar to motor bike chain) may be replaced without dismantling the engines but I would expect your chain would be a "duplex" dual sprocket type, these are most common.
These chains are not generally expensive but replacing them can involve a fair amount of work.
Good Luck and hope this helps, Others will have different ideas.
Posted on May 04, 2009
Just the guide is probably making the noise. So either a new guide or a new chain. I would start with guide first, unless chain looks loose or cruddy
Posted on Sep 16, 2009
SOURCE: 98 Chevy cavalier overheating
That is really quick, like you are getting no water flow at all. Make sure that a radiator hose is not collapsing enough to stop the flow. If possible on that model, take off the radiator cap and shine a light to see if the water passages in the radiator are clogged up with rust or sediment. If this started after the new thermostat was installed, make sure it was not put in backwards.
Posted on Jan 01, 2010
Install the cam sprocket, timing chain, and timing chain cover. Make sure the dot on the crankshaft gear is pointing towards the center of the Camshaft gear bolt. Make sure the hole in the Camshaft gear is pointing towards the center of the crankshaft. Be sure to remove the nail holding the chain tensoner back, before installing the timing cover The round hole in the cam gear is the alignment mark
Posted on Mar 13, 2010
Testimonial: "worked, car is running great now, timing jumped 3 teeth"
SOURCE: mazda cx7 engine noise
just get rid of this car, because you are going to need a new engine soon, my 2007 mazda cx7 with only 33000 miles is at the dealer for engine replacement!!!! only 2 days after i purchased the car
Posted on Mar 19, 2010
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