engine and drivetrain Help, I may have f_cked up.

[Guest Anonymous]

It's gotten worse.

It's a 1975 2002A, was working well before starting repairs (just oil leak from front seal and flickering oil pressure light). Changed the oil pump, front seal and water pump without a problem. Couldn't get it started again. Was getting spark at the plugs and gas from the fuel pump. Tried to readjust the timing (I never touched the timing chain during the oil pump change). I notice that when the camshaft hash mark is under the oil tube on top of the head, the timing marks on the crank are not under the pointer (there are 3 round balls on the crank).

Here comes the crazy part. So with the crank balls lined up, I rotated the cam sprocket on the double row timing chain until it can fit back onto the cam, about a 180 degree rotation. After putting everything back, she still wouldn't start and I'm hearing a different sound from the engine (???).

Looking back at the timing now, I notice that the marks (cam and crank) are no longer aligned. If I try to crank the engine by hand using the 30mm crank nut, the pulley stops after a few cranks.

Help, I hope I didn't just ruin my engine.

dcp

[2002Targa]

the not turning over with a hand crank is kind of spooky. are the plugs out or is it obviously binding on something. If the cam is 180* from the crank, there's a good chance you hit the pistons with the valves. I never would have thought you'd try to switch the cam sprocket around, usually when someone gets 180 out, they pop the dist out and move the rotor around to reset it.

I can't think of an easy way to verify if the valves touched without pulling the head.

[Guest Anonymous]

Thanks for shedding some light.

I know, I'm a jerk.

Yes, the plugs are out and it's binding on something. So I'm going to have to pull the head. What should I be looking for? Can I fix it?

[Guest Anonymous]

8 bent valves done that been there , do the head check the bores for wear rebuild as necessary

We live and learn

DELK

[Guest Anonymous]

It's gotten worse.

It's a 1975 2002A, was working well before starting repairs (just oil leak from front seal and flickering oil pressure light). Changed the oil pump, front seal and water pump without a problem. Couldn't get it started again. Was getting spark at the plugs and gas from the fuel pump. Tried to readjust the timing (I never touched the timing chain during the oil pump change). I notice that when the camshaft hash mark is under the oil tube on top of the head, the timing marks on the crank are not under the pointer (there are 3 round balls on the crank).

Here comes the crazy part. So with the crank balls lined up, I rotated the cam sprocket on the double row timing chain until it can fit back onto the cam, about a 180 degree rotation. After putting everything back, she still wouldn't start and I'm hearing a different sound from the engine (???).

Looking back at the timing now, I notice that the marks (cam and crank) are no longer aligned. If I try to crank the engine by hand using the 30mm crank nut, the pulley stops after a few cranks.

Help, I hope I didn't just ruin my engine.

dcp

If you didnt remove the timing chain, there is no way that your crank and cam got out of time. Check again and re-check. Go from the mark on the front crank pulley and the hash mark on the cam flange where the upper timing gear mounts. Should be lined up the the oiler bar.

Also check to make sure you didnt use bolts that were too long when you installed the fan and pulley on the water pump because those can hit the WP case.