what would cause a car to eat a cam sensor?

[Reaper]

in less when a 100 miles? and 10 WOT runs?

this is on a billet rollar cam'd car also


i am sorry to be vauge maybe as people ask questions i can answer then better.

Dathan

[Bruce]

in less when a 100 miles? and 10 WOT runs?
this is on a billet rollar cam'd car also


The wrong combo of gears.
Toooooo high of oil pressure.
Too tight of oil pump clearances.
Plugged oil galley.
Might pull the pan and see what a couple bearings look like.

If you have the sensor already out, take a long screwdriver and try to spin the oil pump over by hand. It should offer a lil resistance, and feel the gears messing, but not be tight.

[Reaper]

thanks bruce. we will look in to that...
Dathan

[KendallF]

I will add: incorrect mesh between the gears, especially since it's a billet roller with the gear bolted on and the FP eccentric and spacer setup. I have seen people put the eccentric on backwards so that the cam sensor gear eats into the eccentric.

[Reaper]

I will add: incorrect mesh between the gears, especially since it's a billet roller with the gear bolted on and the FP eccentric and spacer setup. I have seen people put the eccentric on backwards so that the cam sensor gear eats into the eccentric.

that makes sense, also how can you install a cam wrong. dont get me wrong but as long as you dont nick the bearing as you put it in it should be ok? right?


bruce, explane your therory please.

thanks
Dathan

[Bruce]

bruce, explane your therory please.


The sensors drive gear runs the oil pump. Excessive loading of the pump would kill the gears.

[Recklessrob]

You may considder using a bronze gear on the cam sensor with the
roller cam. That was a major problem with distributor drive gear failures
for years. The metals weren't compatible due to granular structure.

[KendallF]

that makes sense, also how can you install a cam wrong. dont get me wrong but as long as you dont nick the bearing as you put it in it should be ok? right?

Dathan, the forward and aft location of the gear is determined by the stack up of the thrust retainer/spacer, fuel pump eccentric, and the machining of the front face of the block. If the block is worn around the front cam bearing, or if it's an on-center block, you may have to do some finagling to get it right. If you look at the pump eccentric, it has a fat lobe and a skinny portion that's concentric with its' center. If you assemble the fat lobe next to the drive gear, it sticks up and will interfere with the dist. gear.

Bruce has already mentioned the pump; also check are to make sure the locating dowels for the front cover are being used and aren't bent or worn.

You may considder using a bronze gear on the cam sensor with the
roller cam. That was a major problem with distributor drive gear failures
for years. The metals weren't compatible due to granular structure.

This really only applies to Chevies and others with an integral gear. Since the dist. drive gear bolts onto a billet Buick cam, it is usually (always?) cast so it'll wear properly.

[Reaper]

thanks a lot for the input. do you think it could be due to a faulty cam install?


Thanks a lot
Dathan