Shredded cam gear, what caused it?

99v6stang · January 23rd, 2008, 07:25 PM

Okey so both the outermost gear on my cam, and the cam position senor gear have somewhat shredded themselves and i am wondering how this happened. I attached a picture, but i duno if the attachment will work, and its hard to get a good photo. It looks like most of the damage is on the part of the cam gear towards the cam itself. Also how exactly does this gear drive the oil pump as well?

PICTURE LINK>>>> Putfile - Uploaded Picture

itschristorres8 · January 23rd, 2008, 07:30 PM

i cant even seee the picture

99v6stang · January 23rd, 2008, 07:32 PM

you cant see it? it shows up for my computer, i just added a link to it.

99v6stang · January 23rd, 2008, 07:54 PM

here is anoth picture showing both gears, my thoughts are is that either somehow there is some vibration in the cam, or the oil passage holes are not fully drilled?
\Putfile - Uploaded Picture

GreenFaleen · January 23rd, 2008, 08:28 PM

hit the flower button on your camera before you take the pic, and by what I can tell your timing is way off get a tune man

Blainestang · January 24th, 2008, 12:52 AM

Originally Posted by 99v6stang

here is anoth picture showing both gears, my thoughts are is that either somehow there is some vibration in the cam, or the oil passage holes are not fully drilled?
Putfile - Uploaded Picture

Exactly what happened to mine.

Did you ever get a chance to check the oil passage?

shadow5403 · January 24th, 2008, 09:29 AM

turn your flash off..the pic is one giant reflection

99v6stang · January 24th, 2008, 12:15 PM

no i havent checked the passage yet but i will tonight, i got the heads and everything off i just need to remove the radiator fan so i can pull the cam out. And the timing is not off, it would be possible for the cam position sensor to have been slightly off though. Also the car ran fine for 2 months lets not forget so the the timing couldnt have been off or it wouldnt have lasted this long. I will get better pictures tonight.

Blainestang · January 24th, 2008, 01:00 PM

Originally Posted by 99v6stang

no i havent checked the passage yet but i will tonight, i got the heads and everything off i just need to remove the radiator fan so i can pull the cam out. And the timing is not off, it would be possible for the cam position sensor to have been slightly off though. Also the car ran fine for 2 months lets not forget so the the timing couldnt have been off or it wouldnt have lasted this long. I will get better pictures tonight.

Hmmm... well, mine only ran <15 minutes before it destroyed those gears because the passage was non-existant... so I doubt you have ZERO oil flow through the cam passage, but it could still be smaller than it should be, I guess.

GreenFaleen · January 24th, 2008, 01:15 PM

well from the pics it looks like just the rear of the gear is destroyed which makes me think either the cam is wobbling or your timing is set funny makeing the cam fall at an uneven duration

stephen · January 24th, 2008, 04:04 PM

[QUOTE=99v6stang;806288]Okey so both the outermost gear on my cam, and the cam position senor gear have somewhat shredded themselves and i am wondering how this happened. I attached a picture, but i duno if the attachment will work, and its hard to get a good photo. It looks like most of the damage is on the part of the cam gear towards the cam itself. Also how exactly does this gear drive the oil pump as well?

It drives the oil pump by a shaft that comes out of the crank position sensor.

I don't know what happened to the gears other than insufficient oil for some reason. Could the cam bearings be bad by any chance resulting in low oil pressure to the gear and possible wobbling?

Blainestang · January 24th, 2008, 04:40 PM

Originally Posted by stephen

It drives the oil pump by a shaft that comes out of the crank position sensor.

Yeah, essentially, the CPS gear is on a rod that spins the CPS (at the top of the rod) AND the oil pump (bottom of the rod).

99v6stang · January 24th, 2008, 08:48 PM

okey i got a little better pictures, i decided my camera is crappy.
Putfile - Uploaded Picture
Putfile - Uploaded Picture
the oil passages look fine and i can blow through the just fine. I could not wobble the cam at all by hand, and yes the majority of the damage does appear to be on the back side of the gear. I am still very confused as to how this happened. all timing marks line up at tdc. There was no oil in the oil filter after running for about thirty seconds with a new oil filter so is it my oil pump?

itschristorres8 · January 24th, 2008, 09:16 PM

ok if theres a bad bearing or its not seated correctly or lose
then thats really the only cause to it, there should be NO other reason for it to grind up or get chewed at

itschristorres8 · January 24th, 2008, 09:17 PM

btw that is one shitty camera bro sorry to tell you but the focus is just Horrible

99v6stang · January 24th, 2008, 09:30 PM

yea the camera is a cheap kodak easy share thing i bought for like eighty bucks with a printer. Anyways, how would i go about checking the bearing or to see if it is seated properly?

itschristorres8 · January 24th, 2008, 09:32 PM

Originally Posted by 99v6stang

yea the camera is a cheap kodak easy share thing i bought for like eighty bucks with a printer. Anyways, how would i go about checking the bearing or to see if it is seated properly?

put it back in postition
while its in postition try to shake it or move it side to side. it should not move

99v6stang · January 24th, 2008, 10:22 PM

i did before pulling it out and it did not budge at all. So i dont know what the problem is

GreenFaleen · January 24th, 2008, 10:23 PM

how long had the cam been in?

99v6stang · January 25th, 2008, 12:28 PM

the cam was in for 3000 miles.

January 23rd, 2008, 07:25 PM	#1
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	Shredded cam gear, what caused it? Okey so both the outermost gear on my cam, and the cam position senor gear have somewhat shredded themselves and i am wondering how this happened. I attached a picture, but i duno if the attachment will work, and its hard to get a good photo. It looks like most of the damage is on the part of the cam gear towards the cam itself. Also how exactly does this gear drive the oil pump as well? PICTURE LINK>>>> Putfile - Uploaded Picture Attached Thumbnails __________________ My car ---- (m112 in progress) Last edited by 99v6stang; January 23rd, 2008 at 07:34 PM.

January 23rd, 2008, 07:30 PM	#2
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	i cant even seee the picture __________________ [SIGPIC][/SIGPIC] Acmillr loves me

January 23rd, 2008, 07:32 PM	#3
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	you cant see it? it shows up for my computer, i just added a link to it. __________________ My car ---- (m112 in progress) Last edited by 99v6stang; January 23rd, 2008 at 07:35 PM.

January 23rd, 2008, 07:54 PM	#4
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	here is anoth picture showing both gears, my thoughts are is that either somehow there is some vibration in the cam, or the oil passage holes are not fully drilled? \Putfile - Uploaded Picture __________________ My car ---- (m112 in progress)

January 23rd, 2008, 08:28 PM	#5
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	hit the flower button on your camera before you take the pic, and by what I can tell your timing is way off get a tune man __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

January 24th, 2008, 09:29 AM	#7
shadow5403 Hardcore Enthusiast Join Date: Oct 2007 Location: PA Posts: 2,037 iTrader: 0 reviews	turn your flash off..the pic is one giant reflection __________________

January 24th, 2008, 12:15 PM	#8
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	no i havent checked the passage yet but i will tonight, i got the heads and everything off i just need to remove the radiator fan so i can pull the cam out. And the timing is not off, it would be possible for the cam position sensor to have been slightly off though. Also the car ran fine for 2 months lets not forget so the the timing couldnt have been off or it wouldnt have lasted this long. I will get better pictures tonight. __________________ My car ---- (m112 in progress)

January 24th, 2008, 01:15 PM	#10
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	well from the pics it looks like just the rear of the gear is destroyed which makes me think either the cam is wobbling or your timing is set funny makeing the cam fall at an uneven duration __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

January 24th, 2008, 04:04 PM	#11
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,262 iTrader: 0 reviews	[QUOTE=99v6stang;806288]Okey so both the outermost gear on my cam, and the cam position senor gear have somewhat shredded themselves and i am wondering how this happened. I attached a picture, but i duno if the attachment will work, and its hard to get a good photo. It looks like most of the damage is on the part of the cam gear towards the cam itself. Also how exactly does this gear drive the oil pump as well? It drives the oil pump by a shaft that comes out of the crank position sensor. I don't know what happened to the gears other than insufficient oil for some reason. Could the cam bearings be bad by any chance resulting in low oil pressure to the gear and possible wobbling?

January 24th, 2008, 08:48 PM	#13
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	okey i got a little better pictures, i decided my camera is crappy. Putfile - Uploaded Picture Putfile - Uploaded Picture the oil passages look fine and i can blow through the just fine. I could not wobble the cam at all by hand, and yes the majority of the damage does appear to be on the back side of the gear. I am still very confused as to how this happened. all timing marks line up at tdc. There was no oil in the oil filter after running for about thirty seconds with a new oil filter so is it my oil pump? __________________ My car ---- (m112 in progress)

January 24th, 2008, 09:16 PM	#14
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	ok if theres a bad bearing or its not seated correctly or lose then thats really the only cause to it, there should be NO other reason for it to grind up or get chewed at __________________ [SIGPIC][/SIGPIC] Acmillr loves me

January 24th, 2008, 09:17 PM	#15
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	btw that is one shitty camera bro sorry to tell you but the focus is just Horrible __________________ [SIGPIC][/SIGPIC] Acmillr loves me

January 24th, 2008, 09:30 PM	#16
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	yea the camera is a cheap kodak easy share thing i bought for like eighty bucks with a printer. Anyways, how would i go about checking the bearing or to see if it is seated properly? __________________ My car ---- (m112 in progress)

January 24th, 2008, 10:22 PM	#18
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	i did before pulling it out and it did not budge at all. So i dont know what the problem is __________________ My car ---- (m112 in progress)

January 24th, 2008, 10:23 PM	#19
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	how long had the cam been in? __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

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January 25th, 2008, 12:28 PM	#20
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	the cam was in for 3000 miles. __________________ My car ---- (m112 in progress)

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