General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.
Sponsored by:
Sponsored by:

oil burning ?

Thread Tools
 
Search this Thread
 
  #1  
Old 04-21-2011, 02:17 PM
89accord's Avatar
Thread Starter
Join Date: Apr 2011
Posts: 4
Question oil burning ?

hey guys i have a 89 accord and i need help i am burning about a qt of oil a day and is blowing smoke bad as im new to Hondas coming form dubs i need any and all help possible
thanks randy
 
  #2  
Old 04-21-2011, 02:44 PM
tkrotchko's Avatar
Junior Member
Join Date: Jan 2011
Posts: 62
Default

A quart a day is pretty significant. Its either getting past the valve seals or rings.

Have you done a leak-down test? What sort of diagnostics have you done? How many miles on the car?
 
  #3  
Old 04-22-2011, 08:17 AM
89accord's Avatar
Thread Starter
Join Date: Apr 2011
Posts: 4
Default

165000 and idk how to do any tests so if you could tell me i would love to know how im doing a compression test this weekend but dont know what its supposed to be so any info would be great thank you
 
  #4  
Old 04-22-2011, 08:03 PM
JimBlake's Avatar
Super Moderator
Join Date: May 2006
Location: Wisconsin
Posts: 18,398
Default

Get a compression tester; it looks like a pressure gauge with a fitting that goes into the spark plug hole. Make sure you get one with a long-ish hose or pipe because the sparkplug is down the bottom of a hole. Places like AutoZone let you rent or borrow them.

Engine should be warmed up. Remove all 4 spark plugs. Disable the ignition, like maybe unplug the small wiring harness wires from the distributor. Disable the fuel, maybe pull the fuel-pump fuse.

Stick the gauge in one of the spark plug holes. Floor the gas pedal and crank the starter until the gauge climbs to a constant value. Repeat for the other spark plugs.

Then do it all over again, but first put a teaspoon of engine-oil into the sparkplug hole before you measure that cylinder.

Write down the pressures that you measure & post em back here. You should have 2 different readings for each cylinder - dry & wet. Someone around here (Poorman?) knows the older cars, so he probably can say what's acceptable values.

Cylinder #1 is on the side with the alternator belt. Cylinder #4 is on the side closer to the transmission.
 
  #5  
Old 04-22-2011, 08:05 PM
JimBlake's Avatar
Super Moderator
Join Date: May 2006
Location: Wisconsin
Posts: 18,398
Default

A leak-down test is kinda similar. You get a tester that uses compressed air. Screw it into the sparkplug hole & follow it's instructions. You'll try to hear where the air is leaking.

Into the bottom of the crankcase? Rings.
Into the intake manifold? Valves.
Into the exhaust manifold? Valves.
Into the cooling system? Head-gasket.
etc...
 
  #6  
Old 04-23-2011, 08:20 AM
poorman212's Avatar
Super Moderator
Join Date: May 2010
Location: Youngsville, NC
Posts: 11,832
Default

Let's not forget the poor old PCV as something to look into. The 89 LX had one go once.

Another question, what trim level DX, LX or LXi
 
  #7  
Old 04-23-2011, 09:28 AM
TexasHonda's Avatar
Super Moderator : And A Texan
Join Date: Feb 2007
Location: Katy, TX
Posts: 9,652
Default

The timing of oil smoke can provide information. If it smokes heavily under acceleration and generally most of the time, oil is bypassing the rings.

If it does not smoke at steady speed, but begins to smoke after a prolonged idle, and gives a large belch of smoke upon acceleration after the long idle, the valve stem seals are indicated.

It can be both also.

Both tests can confirm the source of oil loss. Your consumption rate suggests stuck or worn rings.

A good used engine may be your lowest cost option if rings are the problem. If valves are the problem, the rebuild of the cylinder head is lowest cost option. Check car-part.com and ebay for a used engine.

good luck
 
  #8  
Old 04-23-2011, 07:40 PM
tkrotchko's Avatar
Junior Member
Join Date: Jan 2011
Posts: 62
Default

Originally Posted by JimBlake
A leak-down test is kinda similar. You get a tester that uses compressed air. Screw it into the sparkplug hole & follow it's instructions. You'll try to hear where the air is leaking.

Into the bottom of the crankcase? Rings.
Into the intake manifold? Valves.
Into the exhaust manifold? Valves.
Into the cooling system? Head-gasket.
etc...
A good leak down tester will let you know the peak pressure and how quickly the cylinder is losing pressure. I always thought a leakdown test was more definitive than a compression test, but either is better than guessing.
 
  #9  
Old 04-24-2011, 08:59 PM
JimBlake's Avatar
Super Moderator
Join Date: May 2006
Location: Wisconsin
Posts: 18,398
Default

Yes, a leakdown test is more difinitive. And yes, you measure how much is leaking - I should have said that. For this guy, learning where it's leaking seems important too.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mamtsberg
General Tech Help
13
05-30-2010 07:04 AM
live2rice
General Tech Help
2
07-16-2008 08:34 AM
93EXWagon
General Tech Help
2
04-08-2008 04:17 PM
accordinar
General Tech Help
0
08-17-2007 01:07 AM
scottymac
General Tech Help
3
08-15-2006 08:54 PM



Quick Reply: oil burning ?



All times are GMT -5. The time now is 06:00 PM.