Compression
I replaced a blown head gasket on a 91 Dodge Colt 2.5. Now the vehicle crank but want start. When the gasket blew, the engine got real hot, gradually lost power and eventually stopped running. I have checked and re-checked the timing and it is correct..rotor button pointing @ the #1 spark plug wire @ TDC and valves closed. The engine is firing and receiving fuel. I have 65,95,95 and 105 PSI in the cylinders during a compression check. I'm assuming that is adequate compression to start the engine. It is also worth mention that during the check, the needle jumped three times per cylinders prior to producing the max reading. I didn't have the head rebuilt because it didn't appear to be damaged warped/cracked. Maybe I should have. I would appreciate any advice anyone can provide.
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Still, with fuel and spark you should have gotten some cylinders to fire. Also you'd better check your timing marks on your cam and crank pulleys.
Well actually you are supposed to place a steel bar on the head and see if you can slide a (specified thickness) feeler guage at any point between the head and the steel bar. Glass might bend.
My main concern is, because it is a chrysler, the timing is funny. On a Plymouth I overhauled one time, I had a problem with the timing. Unlike Gm, which the distributor runs off of the camshaft, the Chrysler distributor runs off of the oil pump, which in turn runs off of the camshaft. If you remove the oil pump and put it in any way you can, that while the distributor will only fit into the slot of the oil pump two ways and you have the rotor pointing in the right direction, your timing will be way off. You may have to reset your timing marks from scratch.
In my application, slot mark parallel with the block, number one piston tdc, rotor pointing just past ther number one wire. Yours may be different. Chryslers are funny with timing.
Head warpage almost always accompanies these motors to some degree, especially when it gets overheated. It should have been taken to a shop and checked out. Since you have it all back together try to get it running again, if it pops another gasket it is for sure time to have the head overhauled.
thank you,
Mr. Shiftright the Host