Engine won't turn over

[rawright]

I have a 1980 Fiat Spider 2000 and was under the assumption that the timing belt jumped a tooth while my idiot oldest kid was joyriding it without my permission. He is one of those morons that thinks sports cars are race cars. I have no idea what he did to it while he was driving it. I knew the belt was on it's last leg and this is the reason the car wasn't being driven. The car would barely start and ran terrible after it was towed back to the house after his "drive". I have a friend that knows a bit about these cars come over and look at it and he confirmed that the belt most likely had jumped a tooth or 2 seeing as the car still ran. I bought a new timing belt, all new hoses, plugs, water pump and starter seeing as it needed these items anyway. My buddy did the install for the timing belt and new tensioner spring and I put the water pump on later when it came in the mail. Today I went to turn the crank over with a wrench before cranking it with the new starter motor and it now seems like it is locked in one spot. It will spin almost 2 times around with the wrench but that is it. I pulled out all the spark plugs and put a little Marvel down each cylinder to make sure there wasn't any rings sticking because the car has been sitting almost a year and tried to wrench turn it again with the plugs out and still the same thing. I am now starting to think it was more then just the timing belt.

My buddy that knows about these cars is out of town for a while and I was hoping someone here could give me an idea of what possible things could cause this type of problem other then total catastrophic failure?

Thanx in advance for any help,

Robert

[So Cal Mark]

your buddy didn't time the aux shaft properly and it's hitting the crankshaft

[azruss]

My guess is the aux shaft isnt timed right and is hitting the crank. the aux shaft, like the cams rotate one turn while the crank rotates twice. If this is the case, you will break stuff turning the engine. get the motor at TDC (holes on the cam pulleys should line up with the pointer). hole in the aux pulley should be at around 1:30. There is room to play here, but if the hole i2 around 12:30 or earlier or 2:45 or later, you are in the interference zone. Any place between 1:00 and 2:00 should be fine.

[rawright]

your buddy didn't time the aux shaft properly and it's hitting the crankshaft

Lets pretend I know nothing about the timing setup on these motors because I don't LOL

which pulley is the aux shaft?

Robert

[rawright]

My guess is the aux shaft isnt timed right and is hitting the crank. the aux shaft, like the cams rotate one turn while the crank rotates twice. If this is the case, you will break stuff turning the engine. get the motor at TDC (holes on the cam pulleys should line up with the pointer). hole in the aux pulley should be at around 1:30. There is room to play here, but if the hole i2 around 12:30 or earlier or 2:45 or later, you are in the interference zone. Any place between 1:00 and 2:00 should be fine.

Thanx this help a bunch, I will look at it.

Robert

[76was124]

There are a couple good threads if you search the forum too. Such as:
http://www.fiatspider.com/f08/viewtopic ... ng#p147189

[rawright]

Got the timing all set up today including the aux pulley and got the car started and it has a knock in the motor. I tried moving the aux pulley a couple of times between 1 and 2 o'clock and it didn't seem to make a difference in the sound. I am hoping it didn't get messed up with the bad aux pulley setting but I never really leaned on it that hard. I am now thinking I am going to have to pull the motor apart.

Any suggestions what the problem might be?

Robert

[azruss]

my 2LFI had an AC unit i have removed. I plugged the holes with a couple of bolts that stuck thru the block about an 1/8". That was enough to interfere with the crank.

[So Cal Mark]

I'm assuming it didn't knock prior to this repair? I'd put the engine at tdc, then remove the timing belt and turn the aux shaft by hand. If it's bent, the force needed to turn it will vary.