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Most likely the valves were bent. When you attempt to start the motor does it turns over a bit fast and will not sound quit right - Not even attempt to spark up or fire up. Check engine cylinder compression. The valves were bent when the belt broke. you will 1. check compression (and when it fails) 2. decide to have the head checked and if possible rebuilt (use new head bolts) or 3. Look for and buy a low milage used motor or 4. Look for a rebuilt head
bent push rods could have been caused when the chain broke and not from the chain been replaced wrong or the timing out.
if the engine was running when the chain broke the cam would have stopped leaving all the valves in the same positon as the mometum of the fly wheel continued to turn the pistons in the cylendars could hav come up and hitting the valves and bending the push rods. and or damaging the cylendar head.
recommend removing the head and have it checked for damage, as well as replacing the bent push rods, and cylendar gaskit. once the head is checked and the valves are seated well. then replace and follow instructions in the set up for the pistons and cam prior to replacing the chain and setting the timing.
Sorry for this bad news but if the timing belt broke or jumped then you will need to pull heads due to bent valves. When the timing belt breaks it leaves valves open or throws the timing off which causes the pistons to come up and hit and bend valves, the only way to know how much valve damage and to repair is to remove the cylinder head or heads and see.
If you are paying someone to do the work. It is cheaper most times to replace the engine. If it were mine I do the work and would fix the engine. Depends on the damage also. You wont know until you get it apart. It can scar up the piston top and be ok. If it scars up the valve seat in the head, the head is trashed. If something broke and scars up the cylinder walls to badly it is trashed
these are not a free spinning motor, if the timing belt has broken & the pistons have hit the valves & bent them, then you are up for major dollars, it can be fixed but it cost & it is not something you could do in the backyard as it will require someone with good mechanical knowledge & an engineers shop to replace the bent valves.
Sorry for the bad news
2.0 is a non clearance motor. When the timing belt slips the piston comes up and hits the valves and bends them. Unfortunately due to the belt teeth stripped out and the crankshaft continuing to turn when the cam did not turn left the valves open and the piston bent the valves. You will have to remove the cylinder head and check the cylinder head if it needs surfaced and do a valve job on the head and replace any valves that are bent. Make sure the piston is not damaged (hole punched in it from the valve)
this is a common thing on saturns. i dont know why but the #4 cylinder eats rod bearings. i have 2 cores in my shop one with a blown rod and the other one with no bearing. ever since they went to an "new and inproved crank" with four counter ballance weights they have been nothing but problems. get a new engine cause that rods gonna blow........ sorry for the bad news hope all goes well good luck jimmy
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