I replaced chevy 94 caprice serpentine belt...car turns over but wont start...why?

100K + Timing Chain Chevy 5.7L - YouTube

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www.youtube.com/watch?v=jar3Z5n-qEU
Sep 1, 2010 - Uploaded by aintake 100K + Timing Chain Chevy 5.7L ... in 1968 with the Cadillac 472 and later 500 engines - had a mechanic who pulled ... later debuted in 1985 for the 4.3L and phased in during the 1987 model years. ... Ive seen timing chains allot worse ... Only the cars had rollers those years caprice, camaro and corvette.
images for timing chain on 1987 CAPRICE engine

i have a 1996 chevy caprice LT1 that wont start due to hurricane sandy the water line of the car was half of the bottom pully which i think the starter got wet when i returned back to the car i turned the key it didnt turn over but i had power is there any solutions please help

NO ---- of coarse not

Buy proper belt for application.look under hood for dirgram.
I didn't think Caprice had a serpentine belt.

check your distributor, remove fuel pump to take access, check the high and low resolution wires,

Click on the following direct Link. It has several Serpentine Diagrams; one of which matches your specific engine and options (ex: AC/No AC etc).
Regarding HOW:
Standard Rule to Removal the Serpentine Belt:
1. Find the Tensioner(s). (See Diagrams on Link)
2. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT OR OPENING (3/8ths or 1/2 inch square opening) away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move.
3. Remove the loosened belt off one of the other more easily accessed Pulleys.
Standard Rules for Installing the Serpentine Belt:
a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on.
b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right.
c. Using a Serpentine Belt Tensioner Tool or Wrench or Ratchet Tool: Rotate/Move the Tensioner Pulley/Arm "away" from Belt contact area on the Tensioner. This spring is pretty hard and with a new belt, it will be even harder to install. Rotate/Move this to as-close to the maximum allowed inorder to have enough slack in the belt to get it up and over the last pulley.
d. Using your other hand - Pull the Belt up and over the Last remaining Pulley.
e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them.
Let me know if this helped...
http://www.2carpros.com/car_repair_information/year/1995/make/chevrolet/model/caprice/1995_chevrolet_caprice_drive_belt_routing_diagram.htm

The thermostat should be a 185 Hope this helps...Stay warm...

check belt tensioner pulley for worn bearings.check that belt is not worn beyond serviceable length,has cracks or is frayed.

1. Disconnect negative battery cable and remove coolant reservoir.
2. Remove serpentine belt. Refer to Drive Belts, Mounts, Brackets and Accessories / Drive Belt. See: Drive Belt\Service and Repair
3. Remove two generator bolts.
4. Remove power steering pump and position aside.
5. Remove tensioner bolts and tensioner.
6. Reverse procedure to install, Torquing tensioner bolts to 37 ft. lbs.

try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you