Timing Belt Jumped? Valves Bent?

[4gfun]

This morning I took my car up 95. I was decided to drive it hard and play with my SAFC for the first time ever.

I looked down and noticed no oil pressure on my instrument cluster (stock gauge).

Murphy's law kicked in. Bumper to Bumper traffic started and I was not in a position to stop the car since there are no shoulders on this part of 95.

The oil pressure remained at the first line which was right above the letter "L".

Even when I revved the engine, the oil pressure doesn't go up.

As time went on, the engine would stall when I moved forward and would have to be restarted. As I mentioned before, engine sounds like crap. Hard to explain over the internet.

Weird thing is that no oil pressure idiot light ever came on and the car has enough oil. (I later noticed that the wire fell off of the oil pressure sending unit so this is probably a moot point).

 

[knochgoon24]

Pic is right off vfaq.com

 

[4gfun]

In looking at the diagram, I think the cam sprocket marks don't line up.

I had a hard time telling what's what, and the camera won't take a nice pic up close.

If you look though, you will see what appears to be 2 white marks.

In actuality, these are just 2 simple marks (looks like they have been chiseled in from the factory).

Looks like they are 3 teeth off?

 

[4gfun]

To clarify, I added some arrows to show where I see the two marks, since the cam won't quite get up this close correctly. Is this conclusive, or do I have to jack the car up to check all the other timing marks out?

 

[knochgoon24]

Looks like you jumped teeth for sure.

(If you're using a digital camera, there might be a button with a flower on it. That's the macro setting. If you have it, pictures like that will focus and become clearer.)

 

[srtkiller]

In order to make sure the timing marks are correct you may have rotate the motor up to six rotations in order for them to line up you can't just crank the motor.

 

[knochgoon24]

I guess I learned something new today. Oops.

 

[4gfun]

Looks like you jumped teeth for sure.

(If you're using a digital camera, there might be a button with a flower on it. That's the macro setting. If you have it, pictures like that will focus and become clearer.)

Yep, I gave that a shot...thanks. Thanks for the input!

 

[4gfun]

In order to make sure the timing marks are correct you may have rotate the motor up to six rotations in order for them to line up you can't just crank the motor.

How do I rotate the motor? If the marks don't line up there, doesn't that mean they will never line up?

Thanks

 

[crimsondragon]

You can rotate the crank by hand. Remove the driver side wheel and you should see an opening for the crank. Rotate clockwise, never counter-clockwise.

 

[4gfun]

You can rotate the crank by hand. Remove the driver side wheel and you should see an opening for the crank. Rotate clockwise, never counter-clockwise.

So let's get this right just rotate it 6 times clockwise? How far should each rotation be? Does that even matter?

Thanks

 

[knochgoon24]

I'm outside of my knowledge area now. I've always had the timing marks line up. I've only checked twice. Luck I guess. Good Luck getting it fixed.

 

[4gfun]

I'm outside of my knowledge area now. I've always had the timing marks line up. I've only checked twice. Luck I guess. Good Luck getting it fixed.

Lol, glad I am not the only one learning loool.

 

[4gfun]

So I still have a few unanswered questions:

1) How can you tell that the valves are bent just by looking at them? (Just for my own understanding)?

2) Which cam is the intake cam?

3) Does the ability to pull a rocker upwards (without removing the cam) define a bent valve?

4) What am I looking for when I turn the crank clockwise 6 times?

5) Is it enough to look at the cam sprockets to see if the marks line up? Or do I really have to look at all the other timing marks?

6) Why does the motor have 0 compression on all cylinders if not all of the valves are bent? - Answered

7) Won't the pistons be dented?

Answers to any of these should prove helpful.

 

[knochgoon24]

You won't get any compression if either your exhaust or intake timing is off. The valves could be open during the compression stroke, and since they're open, you won't build compression.

 

[4gfun]

You won't get any compression if either your exhaust or intake timing is off. The valves could be open during the compression stroke, and since they're open, you won't build compression.

Very clear....thanks!

Now for answers to some of my other dumb questions.

 

[2gGSX]

So I still have a few unanswered questions:

1) How can you tell that the valves are bent just by looking at them? (Just for my own understanding)?

2) Which cam is the intake cam?

3) Does the ability to pull a rocker upwards (without removing the cam) define a bent valve?

4) What am I looking for when I turn the crank clockwise 6 times?

5) Is it enough to look at the cam sprockets to see if the marks line up? Or do I really have to look at all the other timing marks?

6) Why does the motor have 0 compression on all cylinders if not all of the valves are bent? - Answered

7) Won't the pistons be dented?

Answers to any of these should prove helpful.

1. You won't be able to look in there without a scope, which isn't exactly available everywhere. Try to have someone do a leakdown test in each cylinder with the valves closed and listen for air coming out the intake or exhaust.

2. The one closer to the firewall.

4. You are looking for those two notches, and preferably the notches on the crank pulley (the ones on the bottom) to line up next to each other.

5. You need to look at the ones on the bottom.

7. Yes, that is very possible.

 

[4gfun]

1. You won't be able to look in there without a scope, which isn't exactly available everywhere. Try to have someone do a leakdown test in each cylinder with the valves closed and listen for air coming out the intake or exhaust.

2. The one closer to the firewall.

4. You are looking for those two notches, and preferably the notches on the crank pulley (the ones on the bottom) to line up next to each other.

5. You need to look at the ones on the bottom.

7. Yes, that is very possible.

Thanks very much...

 

[Defiant]

You have 0 compression? Game over. Bent valves. Rebuild the head. At least.

 

[chanley talon]

I would almost bet that your rear balance shaft bearing crapped on you . Causing the oil pump to fail . This is why your car kept running . Then it kept getting worse until it ceased making the belt jump like a moe. Then you ended up with bent vavles . First thing to do is try to turn the oil pump sproket by hand once timing belt is removed . If you feel tension behind it . It Is bad. Which means the crank needs turned you need all new bearings gaskets and a rebuilt head . Get rid of the balanceshafts and buy a new timing belt tenisoner . If the oil sproket is hard to turn by hand it is bad!

 

[4gfun]

Wow, I hope that your forensics are wrong. The only thing that may be my saving grace was that the oil pressure wire wasn't connected when all this happened. It fell off! The idiot light never came on either.

Maybe I will luck out!