[99v6stang]

So my camshaft gear that runs the camshaft position sensor is somewhat grinded down as if the gears had been rubbing together at the wrong angle, i am wondering what caused this and how do i assure it doesnt happen again

[itschristorres8]

you mean the cam sprocket?
it should look almost like a bike chain
it its grinded down id get a new one as well as a new chain

[stephen]

Originally Posted by itschristorres8 you mean the cam sprocket? it should look almost like a bike chain it its grinded down id get a new one as well as a new chain

Not the cam sprocket. It's a gear on the end of the cam that drives the cam position sensor. The Ford manual mentions that it needs to be well lubed on assembly to avoid premature wear.

[itschristorres8]

Originally Posted by stephen Not the cam sprocket. It's a gear on the end of the cam that drives the cam position sensor. The Ford manual mentions that it needs to be well lubed on assembly to avoid premature wear.

eh that makes more sense good catch

[99v6stang]

so you are thinking that simply because it wasnt well lubed enough that it only lasted 3000 miles instead of 100,000?

[Blainestang]

Did you check the oil passage through the cam? I had a billet cam where the passage was drilled at the first cam bearing and the end of the cam, but the two passages didn't meet in the middle! This lead to a VERY early demise for my cam gear and CPS/oil pump gear.

BTW, you probably already know this, but if anything happens to that gear, not only will you lose the cam position sensor... the oil pump will go out as well.

[99v6stang]

ah that would explain why there was no oil in the filter. Why does it stop the oil pump? Is the oil pump destroyed as well?

[Blainestang]

Originally Posted by 99v6stang ah that would explain why there was no oil in the filter. Why does it stop the oil pump? Is the oil pump destroyed as well?

The same rod that spins the CPS spins the oil pump.

The oil pump isn't INHERENTLY destroyed... Probably, the gear just wasn't spinning the rod, so the pump wasn't working. Now, you'll want to try and manually prime the pump to make sure it's working.

[itschristorres8]

Originally Posted by Blainestang Did you check the oil passage through the cam? I had a billet cam where the passage was drilled at the first cam bearing and the end of the cam, but the two passages didn't meet in the middle! This lead to a VERY early demise for my cam gear and CPS/oil pump gear. BTW, you probably already know this, but if anything happens to that gear, not only will you lose the cam position sensor... the oil pump will go out as well.

no oil pressure is about the LAST thing you want
say bye bye motor


if you really had no oil in that filter do not start that car
thats Horrible

[99v6stang]

So tell me more about this oil passage through the cam. Do you think if that is the case that the hole was not fully drilled that i will be able to get morana racing to refund me for some of this expense?

[99v6stang]

it only ran ro less than thirty seconds, but all the cylinders still seem well oiled., Also it seemed like there was some oil on the harmonic balancer when i pulled that off, why would that be?

[Blainestang]

Originally Posted by 99v6stang So tell me more about this oil passage through the cam. Do you think if that is the case that the hole was not fully drilled that i will be able to get morana racing to refund me for some of this expense?

With regard to Morana, I have no idea.

With regard to the oil passage, take a look at your old cam if you have it. The oil passage goes from a hole in the very front of the cam and takes a 90-degree turn and comes out in the first bearing. The oil actually flows the other way, comes out the front, and oils the cam gear and the gear on the CPS sensor. If the oil passage isn't drilled properly, those two gears will essentially destroy each other.

Originally Posted by 99v6stang it only ran ro less than thirty seconds, but all the cylinders still seem well oiled., Also it seemed like there was some oil on the harmonic balancer when i pulled that off, why would that be?

As you may have already grasped, the oil pump would work for a while, and only STOP working once the gears are destroyed.

[stephen]

Originally Posted by 99v6stang so you are thinking that simply because it wasnt well lubed enough that it only lasted 3000 miles instead of 100,000?

I would think it's more like you said originally, that the gears are at the wrong angle. Is it possible the new cam is slightly longer or shorter than the original?

As far as the oil pressure questions, since that gear drives both the oil pump and cam angle sensor, I would think if it broke the engine would stop.

I usually preoil rebuilt engines by putting the short block upside down, pouring oil into the oil pickup, and turning the engine till oil comes out of the oil feeds to the heads.

[Blainestang]

Originally Posted by stephen I would think it's more like you said originally, that the gears are at the wrong angle. Is it possible the new cam is slightly longer or shorter than the original?

It IS possible to put the cam gear on "backwards", but at least on my car, the two gears don't even TOUCH if that's the case.

Originally Posted by stephen As far as the oil pressure questions, since that gear drives both the oil pump and cam angle sensor, I would think if it broke the engine would stop.

The engine doesn't immediately stop, it just doesn't get oil and doesn't run well. Eventually, it would probably stop given the circumstances, but not immediately.

Originally Posted by stephen I usually preoil rebuilt engines by putting the short block upside down, pouring oil into the oil pickup, and turning the engine till oil comes out of the oil feeds to the heads.

I preoiled mine as well... by manually spinning the oil pump with a long 8mm allen into the pump and a cordless drill

[99v6stang]

yeas, my was pre oiled as well, but tommorrow when i get some time i will check that passage and measure the cam to se if it is a different length or anything

[Blainestang]

Originally Posted by 99v6stang yeas, my was pre oiled as well, but tommorrow when i get some time i will check that passage and measure the cam to se if it is a different length or anything

It's pretty easy to tell if the passage is properly drilled or not, btw.

If I just blow into the end of the stock cam, air comes easily out at the hole in the first bearing. When I did that to my first cam, nothing.

[stephen]

The engine doesn't immediately stop, it just doesn't get oil and doesn't run well. Eventually, it would probably stop given the circumstances, but not immediately.

Interesting. I thought the cam position sensor controlled the fuel injection and so the engine would stop if it died. I guess not.

[Blainestang]

Originally Posted by stephen Interesting. I thought the cam position sensor controlled the fuel injection and so the engine would stop if it died. I guess not.

I *think* the car just goes into sort of a limp mode or something. When the gears were destroyed in my car, therefore stopping the CPS and oil pump, the car didn't simply shut off, it just ran badly. Obviously, it was shut off fairly quickly after the noise from the gears demolishing themselves, but it didn't immediately stall.