SOURCE: Broken Cylinder head valves
sounds like your timing belt may have slipped or snapped a ceased timing belt adjuster could cause this check your timing belt and adjuster and all belt adjustment pulleys before you fix the valves otherwise its bound to happen againalso make sure your engine oil is full
SOURCE: service engine soon light keeps coming on. Now low coolant light
I would start by doing an oil change myself so you can examine the oil and look for water/antifreeze in it. You will be able to see it separate from the oil and you can smell the antifreeze. If there is then you have a leak between the water jacket and the heads somewhere. More than likely the LOWER intake gasket is leaking into the head. You said they replaced a gasket but was it the UPPER or LOWER? If it was the LOWER did they use RTV in the correct areas? Did they torque the intake bolts to the correct pressure and install the bolts correctly? I know you don't have these answers but these could all be part of the problem. It may be leaking more at #2 cylinder and causing it to foul more than the others. Also just because a mech pressurized the coolant system and didnt see any change in pressure (hopefully he wasn't just looking for visible leaks) the issue may not happen until the engine is hot, as metals behave differently when heated, especially aluminum which the LOWER intake is made. Have a mechanic or mechanically inclined friend (gearhead) remove the #2 plug wire, then kick the engine a few times without starting it, enough to let any fluid get into the chamber, this would include gas btw. Then remove the plug and look for any wet residue on the plug, gas will evap. quickly, antifreeze/oil won't. again try to smell the residue and if necessary, lightly touch some to your tongue, antifreeze has a sugary sweet taste that is easily detectable. Remember any time you are working with chemicals such as waste oil and especially anti freeze, minimize spills and clean them up quickly and completely and place the spent fluid in a sealable container and take them to a collection center for disposal. Waste oil is a carcinagin (cancer causing) agent and antifreeze (glycol) new or old will kill any animal (child, dog, cat,etc) that ingests it. Many auto parts stores and some other retailers that sell oil and antifreeze will take your wastes if you bought the replacement fluid from them, check before you buy.
SOURCE: timing belt broke on mazda 5
Think you have to put a flat bar across the back of the cam shafts same as the old ZETEC ford motors. Failing that are the vernier pullies marked with eithr O T or do they have a - or a . that line up with a position on the end of the cylinder head.
SOURCE: How to rethread spark plug hole in cylinder head?
First, go in corner and cry. Second, grab a good strong drink. okay ready to start....Cylinder head SHOULD come off. The reason behind this is that when you re-thread the hole, the fillings from the tap will go into you combustion chamber (BAD). Best place to go to get the tool would be your local auto parts store. they may have kits there that you can buy. If you don't want to take the head off. could try and sticking a vaccum beside it and hope that it gets most of the stuff
hope that helps, good luck
SOURCE: 97 dodge neon timing belt broke while going down
I do not have good news for you.
According to the Gates Timing Belt guide 2002 Edition, both engines offered in the Dodge Neon are interference engines.
This means that your engine has likely sustained sgnificant valve, cylinder head or even piston damage. Have you tested the compression?
It is probably least expensive to buy a used engine, change its timing belt and replace your engine with that one.
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