ok, so i finally replaced the head gasket. I followed the haynes manual. What i did was as follows:
1) remove distributor, spark plugs
2) remove rear housing
3) remove timing belt upper cover and slip timing belt off camshaft pully. (was already alligned to TDC before i did this)
4) Detach exaust, hoses, clips, air assembly
5) remove head bolts ( inorder)
5.5)lift head up enough to remove gasket (dont have to take off intake), replace gasket, retighten bolts to specified torque)
6) slip back on timing belt, (camshaft still at TDC)
7) put back in clips, plugs etc.
now i have two additional problems.
the car will actually start and turn over now. however, i noticed 2 things
1) Thick white smelly smoke puring out the exaust and from under the hood a little. Never ocured before. i figure this could maybe be leftover antifreze in the oil buring off or something. i did not change the oil since it broke down.
2) The timing is obviously off as i found the car to sound very very rough and loud. when i shut the car off it is not alligned TDC according to the camshaft pully notches . I could attribute this to the following problem:
While in the process of fixing my car over the last 2 months, it was towed by the apartment complex cause i left some tools and a part under the car. During this time the timing belt was off the camshaft.
My question is this: could having the car towed while it was in this state have cause the timing to be off? I am wondering if the second pulley, the crankshaft has to be alligned TDC as well. the manual for the older 626's says something about this but the updated section in the manual for my newer but not so new '91 626 says nothing about it only the camshaft being alligned TDC.
For timing, am i correct in saying that for correct timing, the crankshaft, camshaft and rotor/distributor must all be set to TDC? or is it just camshaft and distributor/rotor?
Could it be that the camshaft pulley and distributor could be alligned but the crankshaft pulley be way off due to the car being towed?
I should note that I also had markings placed on the timing belt itself before i slipped it off so i could get it back in the exact place and these markings were a few inches off of where they were supposed to be when i slipped the belt back on.
Is my thinking on track or am i missing something big? I also heard you could destroy your engine by towing or rolling etc with a broken/ no timing belt. Could i have done this?