Amount of time expected to do a head gasket, water pump on a 97 olds achieva 2.2?

If you take the head off and take it to an automotive machine shop for the valve work, pressure testing, inspection, and cleaning (by hot tank), you are looking at about 200-300 dollars, depending on locale and shop prices. Then you could buy the gasket set for about $75 and put it all back together. Know what you are doing and buy a repair manual to follow procedures. If it is a timing belt and not a timing chain, go with a new belt-not very expensive, under $25- and good insurance to also put in a new water pump.

If you have a shop do all the work, it will get expensive fast. Most head jobs cost a minimum of about $750. And most shops will send the head to a machine shop for that work involved, so add that to the cost.

If you replaced the cylinder head gasket it could be a cracked block or head. If you didn't replace the head gasket it could be blown. It could also be a warped head, especially if it's magnesium alloy. If only a small amount is getting into the head, you might want to try radiator sealant. In the old days we used to pour in a raw egg in the radiator while the engine is running. Most times it would stop the leak for a few weeks.

Oil and coolant mixed usually means the engine is damaged.
Blown head gasket, or cracked block - head.
You may have coolant in the engine oil too.
I would not drive it.

only advice i can give is when you replace it with the new one .take the time to make sure where t bolts to the block where the gasket sits get that very perfectly clean.people leave little bits of old gasket on and have to redo the entire job .

The compressor is located on the engine with a belt driving it, It is usually down the bottom where you can't get to it, most of them are removed from underneath. You have 3 or 4 things that are belt driven, in case you don't know which is which, the power steering pump, the alternator, and the ac compressor, and sometimes you will find an air pump, or a water pump. The ac compressor is easily identified by the 2 big aluminum pipes going into it. Hope this helps.

Here is a link to an engine diagram that will show you exactly where the water pump is...

http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?displayName=Water+Pump&currentPage=1&categoryDisplayName=Cooling+%26+Heating&navValue=16300095&itemId=95-0&parentId=63-0

You have a blown gasket.
You will have to repair it with a new gasket.
First try a quick fix like a Stop Leak for head gasket Bars Leaks or similar heavy duty.
Vitally

Yes that must be the head gasket.There is no other way for the air to get in to the water cooling system.

Did you add coolant ? you are supposed to bleed the system after adding coolant. it also could be a bad Coolant temperature sensor which turns on the radiator fans. or a leak in the intake manifold gasket.Or even a bad thermostat. Does the heater work ? All of this can cause that problem.

this indicates that you have a blown head gasket. you may not have water in the oil pan but it's because the water is not leaking into your oil galleys,but instead leaking into the cylinders and being burned hence the white smoke.. there is a big myth that you will get water in the oil with a blown head gasket . there might be trace amounts but the only time you get water in the oil is if the heads crack or the block cracks othere wise most times it's just getting burnt in the cylinders,hence the great amount of white smoke. please rate this thanks.