• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Burning Lots Of Oil...discouraged

  • Thread starter Thread starter Alex Kraczek
  • Start date Start date Nov 27, 2015
A

Alex Kraczek

Member
May 7, 2012
40
4
18
Nov 27, 2015
#1
  • Nov 27, 2015
  • #1
You guys have helped me out alot the past couple of threads, and havent come across a similar issue so here it goes...

New 302 build, stock bottom end, re ringed and new bearings.
X cam with comp springs
Gt40 heads and intake
Boltons etc..... still N/A

Car has a slight blue haze at idle.....if you give it gas in neutral, when the rpms drop it puffs quite a bit of smoke.

Doesnt burn a whole lot just commuting, but when you beat on it (last night for a good 30 minutes or so, made 5 or 6 runs) and drove it home this morning 250 miles, i lost about 1.2 quarts. Compression is 130-140 across the board.


Thoughts?
 

rbohm

Founding Member
Apr 12, 2002
6,698
550
204
tucson,az
Nov 27, 2015
#2
  • Nov 27, 2015
  • #2
sounds like the rings havent seated properly yet. if chrome rings were installed, they take a lot of time to seat properly, probably 500-1000 miles or so.
 
A

Alex Kraczek

Member
May 7, 2012
40
4
18
Nov 27, 2015
#3
  • Nov 27, 2015
  • #3
Im almost positive they were steel rings that I installed, and it has been about 1500 miles sincr rebuild. The car makes great power, im just upset because i spent so much time on this car....and i want to spray a 100 shot as well, now im debating on it.
 

A5literMan

At least it is lumpy...
5 Year Member
Jul 30, 2011
4,674
2,343
194
Illinois
Nov 27, 2015
#4
  • Nov 27, 2015
  • #4
Sounds like something was messed up on assembly. Improper ring gap? Valve seals? Pcv system intact-working properly?
 

mikestang63

SN Certified Technician
Aug 27, 2012
11,606
8,859
214
In the garage
Nov 27, 2015
#5
  • Nov 27, 2015
  • #5
Could be a number of things

rings
valve seals
had gasket
PCV system

SInce you are buring the oil, I would recommend to do a leak down test. that will help diagnose where the probem is.

How to do Cylinder Leak Down Testing- Car Craft Magazine
 
You must log in or register to reply here.

Similar threads

A
302 oil consumption mystery
  • Austin5.0
  • Sep 27, 2020
  • Fox 5.0 Mustang Tech
Replies
14
Views
4K
Fox 5.0 Mustang Tech Apr 25, 2021
Austin5.0
A
Piston Rings or Valve Seals Please Help!
  • TorchRed_4.0
  • Apr 19, 2021
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 19, 2021
TorchRed_4.0
R
Help please. Burns oil, low compression but no broken rings.
  • rednewedge
  • Apr 25, 2020
  • SN95 4.6L Mustang Tech
Replies
1
Views
1K
SN95 4.6L Mustang Tech Apr 30, 2020
08GT500
X
Oil Consumption/Oil in Manifold
  • xix_vannin
  • Aug 20, 2018
  • Fox 5.0 Mustang Tech
Replies
7
Views
3K
Fox 5.0 Mustang Tech Aug 25, 2018
Martman
M
R
Please Help Me Find My Oil Drain!
  • Ryan Hardy
  • May 28, 2015
  • Fox 5.0 Mustang Tech
Replies
11
Views
1K
Fox 5.0 Mustang Tech May 29, 2015
Ryan Hardy
R
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?