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.
Sponsored by:
Sponsored by:

Cam bearing

Thread Tools
 
Search this Thread
 
Old 09-29-2010, 02:12 PM
  #11  
Retired Senior Admin

Expert Gearhead
Thread Starter
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes on 24 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.
Old 09-29-2010, 02:21 PM
  #12  
Senior Member
True Car Nut
 
xtremerevolution's Avatar
 
Join Date: Jun 2007
Location: New Lenox, IL
Posts: 2,478
Likes: 0
Received 0 Likes on 0 Posts
xtremerevolution is on a distinguished road
Default

Originally Posted by Danthurs
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!
Old 09-29-2010, 02:26 PM
  #13  
Senior Member

True Car Nut
 
sseidriver97's Avatar
 
Join Date: Mar 2010
Location: Portage mi
Posts: 7,124
Received 5 Likes on 5 Posts
sseidriver97 is on a distinguished road
Default

me to hope thats all it is
Old 09-29-2010, 03:43 PM
  #14  
Senior Member
True Car Nut
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Likes: 0
Received 0 Likes on 0 Posts
95naSTA is on a distinguished road
Default

Originally Posted by Danthurs
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.
Old 09-29-2010, 05:09 PM
  #15  
Retired Senior Admin

Expert Gearhead
Thread Starter
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes on 24 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.
Old 09-29-2010, 05:31 PM
  #16  
Senior Member
Posts like a Supercharger
 
flyballdog's Avatar
 
Join Date: Aug 2010
Location: Tweed Ontario Canada
Posts: 167
Likes: 0
Received 0 Likes on 0 Posts
flyballdog is on a distinguished road
Default

Hope not too much wrong with your engine.
Love your hood.
Old 09-29-2010, 09:13 PM
  #17  
Senior Member
True Car Nut
 
Purplehazeir's Avatar
 
Join Date: Sep 2008
Location: Arlington, WA
Posts: 7,979
Likes: 0
Received 1 Like on 1 Post
Purplehazeir is on a distinguished road
Default

Bummer dude if it'* the cam bearing. Hoping that'* it'* not something that bad buddy!
Old 09-30-2010, 01:08 AM
  #18  
Senior Member
True Car Nut
 
radomirthegreat's Avatar
 
Join Date: Sep 2006
Location: Indianapolis, IN
Posts: 4,606
Likes: 0
Received 0 Likes on 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.
Old 09-30-2010, 06:02 AM
  #19  
Retired



Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Dark Side, AZ
Posts: 17,920
Received 1,780 Likes on 1,304 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!
__________________
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel

Old 09-30-2010, 06:36 AM
  #20  
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Likes: 0
Received 8 Likes on 8 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.


Quick Reply: Cam bearing



All times are GMT -4. The time now is 08:42 PM.