Question about 1991 Eagle Talon
The timing belt broke at 60mph, no loud noise. eng still turns over. Have not taken the head off. can I just replace the belt
You will probably have 15 0f the 16 valves bent. Make sure you hold the rear camshaft in correct position when installing the belt. It has a tendency to want to roll 1 or two teeth off alignment. It will run but will not sound right. The 4G63 motor is very smooth and the sound of the engine is very smooth . You will know it's not right when it runs. Make sure that you install the belt correctly. Meaning follow the instructions fully with regards to the belt tensioner. Also do not force the belt over the pulleys. This will damage the belt. My 92 Eagle Talon was bought new by my sister. I bought the car with 72,000 or so miles. On my way home from work. I worked in a transmission shop. The car died. I had triple A so I called for a tow. The tow driver said try cranking it over. It will crank but with a broken belt it will crank like it has no compression. Which it now does not. The motor is what's known as an interference motor. This means if you lose the belt the pistons will hit the open valves. You will also probably find a lot of cracks in the exhaust manifold. This is common. When I got to the broken belt. It was obvious by the scuffing visible on the belt where it broke that the shop that did the work had a hack working on the car. You could see the scuff marks where the belt had been force over a cam pulley. That belt cost my sister about $400 to replace. It lasted about 7000 miles before the damaged belt broke. I did all my own work and it still cost about $1200 to fix the car. And yes I found out about the rear call rollover the hard way. I had the exhaust manifold welded. It cost only a little less than a new manifold but once welded properly, it usually will not crack again. It takes an experienced welder to weld cast iron. Also in addition to the belt you will need a head gasket set and I would replace the belt that times the oil pump. I also replaced the other three belts and the hoses and thermostat. The car only has 123.000 miles on it. If this seems beyond your skill level. It is not an easy belt replacement. I would suggest getting a used engine and putting that in.
Posted on Dec 31, 2014
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Posted on Jan 02, 2017
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