Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

Air bleeding Oil pressure gauge? False reading?

Thread Tools
 
Search this Thread
 
Old 11-28-2019, 03:30 PM
  #1  
Senior Member
Thread Starter
 
maroe624's Avatar
 
Join Date: Sep 2014
Location: Los Angeles
Posts: 731
Received 32 Likes on 24 Posts
Car: 92 Z28
Engine: Ramjet 350
Transmission: T-56
Axle/Gears: 3.23 Torsen
Air bleeding Oil pressure gauge? False reading?

Made the switch to synthetic and I noticed the line running to my oil pressure gauge has many sediments of oil, from really dirty/dark oil to cleaner/lighter oil and in between. When I rev it up I can see the sediments bunch up and was wondering if that could throw off the reading. Probably doesn't make a difference since its just pressure right? Might try bleeding line just to see if it makes a difference.
Old 11-28-2019, 03:49 PM
  #2  
Supreme Member
iTrader: (1)
 
GeneralDisorder's Avatar
 
Join Date: Mar 2017
Location: Portland, OR
Posts: 4,255
Received 422 Likes on 323 Posts
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: Air bleeding Oil pressure gauge? False reading?

It doesn't matter.
Old 11-28-2019, 07:06 PM
  #3  
Supreme Member

iTrader: (1)
 
OrangeBird's Avatar
 
Join Date: Feb 2012
Posts: 3,696
Received 663 Likes on 473 Posts
Car: 1989 Firebird
Re: Air bleeding Oil pressure gauge? False reading?

The fact that you can see anything in the tubing connecting to your oil pressure gauge means that you've got the wrong tubing hooking it up ......

Yeah yeah , , , I know , they sell the plastic garbage with the gauge , but it's the worst stuff to use because it will , no , not it may , but WILL , eventually harden , become brittle , and break , soaking your carpet with oil .
The right stuff to use is copper tubing , it comes in the same size as the plastic crap , fits the same compression fittings , and at least at my local autoparts store is sold on the same rack with the gauges .......
The following 2 users liked this post by OrangeBird:
NoEmissions84TA (11-28-2019), T.L. (11-28-2019)
Old 11-28-2019, 08:15 PM
  #4  
Supreme Member
iTrader: (1)
 
GeneralDisorder's Avatar
 
Join Date: Mar 2017
Location: Portland, OR
Posts: 4,255
Received 422 Likes on 323 Posts
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: Air bleeding Oil pressure gauge? False reading?

When you redo it with copper, make sure you leave several coils at the fixed ends like the gauge and the engine for stress relief. If you don't the copper will work harden and break off at the fittings. Also be VERY careful tightening the ferrules as it doesn't take much to damage the tubing.

GD
Old 12-04-2019, 12:46 PM
  #5  
Supreme Member

 
ASE doc's Avatar
 
Join Date: Apr 2010
Location: Aurora, OR
Posts: 4,337
Received 25 Likes on 23 Posts
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Air bleeding Oil pressure gauge? False reading?

Originally Posted by GeneralDisorder
When you redo it with copper, make sure you leave several coils at the fixed ends like the gauge and the engine for stress relief. If you don't the copper will work harden and break off at the fittings. Also be VERY careful tightening the ferrules as it doesn't take much to damage the tubing.

GD
What he said. I wrap it around a 1 1/4 impact socket to make even coils so it looks nice and neat.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
shrewdpeach1609
Electronics
2
07-23-2016 06:01 PM
x91xCamarox
Interior
2
05-13-2011 08:18 PM
R4][N_M4l{3R
Tech / General Engine
5
06-07-2007 03:48 PM
85SportCoupeto89RS
V6
7
04-20-2002 09:23 AM
GCSIROC
TPI
1
03-18-2002 02:06 AM



Quick Reply: Air bleeding Oil pressure gauge? False reading?



All times are GMT -5. The time now is 05:59 PM.