Cam bearing - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 09-29-2010, 03:12 PM   #11
Retired Senior Admin

Expert Gearhead
Thread Starter
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Right now I'm thinking it'* not a bearing, but still could be. At idle I had no oil pressure, it should have been tapping like mad, but it wasn't. And driving had about 20 psi. I changed the oil for 10w30 and I had about 20psi at idle and about 40psi driving. I'm really hoping it'* a bad pressure sensor.
Danthurs is offline   Reply With Quote
Old 09-29-2010, 03:21 PM   #12
Senior Member
True Car Nut
 
xtremerevolution's Avatar
 
Join Date: Jun 2007
Location: New Lenox, IL
Posts: 2,478
Thanks: 0
Thanked 0 Times in 0 Posts
xtremerevolution is on a distinguished road
Default

Quote:
Originally Posted by Danthurs View Post
Right now I'm thinking it'* not a bearing, but still could be. At idle I had no oil pressure, it should have been tapping like mad, but it wasn't. And driving had about 20 psi. I changed the oil for 10w30 and I had about 20psi at idle and about 40psi driving. I'm really hoping it'* a bad pressure sensor.
Crossing my fingers for you! Good luck man!
xtremerevolution is offline   Reply With Quote
Old 09-29-2010, 03:26 PM   #13
Senior Member

True Car Nut
 
sseidriver97's Avatar
 
Join Date: Mar 2010
Location: Portage mi
Posts: 7,124
Thanked 3 Times in 3 Posts
sseidriver97 is on a distinguished road
Default

me to hope thats all it is
sseidriver97 is offline   Reply With Quote
Old 09-29-2010, 04:43 PM   #14
Senior Member
True Car Nut
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

Quote:
Originally Posted by Danthurs View Post
Right now I'm thinking it'* not a bearing, but still could be. At idle I had no oil pressure, it should have been tapping like mad, but it wasn't. And driving had about 20 psi. I changed the oil for 10w30 and I had about 20psi at idle and about 40psi driving. I'm really hoping it'* a bad pressure sensor.
I was thinking that'* why you thought it was a cam bearing. Since it'* not attached to a reciprocating part, there would be no tap.
95naSTA is offline   Reply With Quote
Old 09-29-2010, 06:09 PM   #15
Retired Senior Admin

Expert Gearhead
Thread Starter
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

It'* the loss of oil pressure that had me thinking a bearing. No oil pressure, means the lifters don't fill up. So far my plan to to pull the oil filter adapter and mod the oil bypass valve. That will up the pressure a bit. I read some place else about someone that did a top build, and a while later he lost oil pressure. Did the bypass valve mod and everything was fine again. I have high hopes for that. I'll take pictuers and do a write up on it.
Danthurs is offline   Reply With Quote
Old 09-29-2010, 06:31 PM   #16
Senior Member
Posts like a Supercharger
 
flyballdog's Avatar
 
Join Date: Aug 2010
Location: Tweed Ontario Canada
Posts: 167
Thanks: 0
Thanked 0 Times in 0 Posts
flyballdog is on a distinguished road
Default

Hope not too much wrong with your engine.
Love your hood.
flyballdog is offline   Reply With Quote
Old 09-29-2010, 10:13 PM   #17
Senior Member
True Car Nut
 
Purplehazeir's Avatar
 
Join Date: Sep 2008
Location: Arlington, WA
Posts: 7,979
Thanks: 0
Thanked 1 Time in 1 Post
Purplehazeir is on a distinguished road
Default

Bummer dude if it'* the cam bearing. Hoping that'* it'* not something that bad buddy!
Purplehazeir is offline   Reply With Quote
Old 09-30-2010, 02:08 AM   #18
Senior Member
True Car Nut
 
radomirthegreat's Avatar
 
Join Date: Sep 2006
Location: Indianapolis, IN
Posts: 4,606
Thanks: 0
Thanked 0 Times in 0 Posts
radomirthegreat is on a distinguished road
Default

I wish you the best of luck! Dig through it and see what you can come up with. Keep us posted. I'm sure that you'll do what'* absolutely best and most reasonable.
radomirthegreat is offline   Reply With Quote
Old 09-30-2010, 07:02 AM   #19
Senior Administrator


Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,638
Thanked 991 Times in 770 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

If your lifters were not filling up, you would know it! Talk about a musical symphony with 12 push rods clacking.

If you can, pull the front valve cover, start it and see if the rockers are getting wet. Blip the throttle while watching the #5 rockers, if it squirts, you got pressure!
Mike is offline   Reply With Quote
Old 09-30-2010, 07:36 AM   #20
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

There is still oil flowing through the motor and the lifters would typically still fill. I've yet to hear lifters not getting enough oil and have seen a lot of cars with bad bearings and zero pressure.

I pm'd the info about he oil pressure mod. Stick to that info and do not stray from it at all. OP is too important to a motor to do anything but add that one washer, use the right gasket and that'* it.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
HELP! cam sensor error... and its NOT the cam sensor Sprig Everything Electrical & Electronic 3 06-17-2006 11:13 AM
Symptoms of Cam/Balancer shaft bearing Failure newpontiac 1987-1991 1 01-12-2005 03:30 PM
Spun Bearing or main bearing? Kennginn 1992-1999 3 08-05-2004 02:09 PM
Error 41 (cam sensor circuit) on bonnie 93 se gnes 1992-1999 5 11-10-2002 09:01 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:13 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.