Go Back  S2KI Honda S2000 Forums > General Interest > S2000 Under The Hood
Reload this Page >

Extreme oil consume, 5 liter every 7500km

S2000 Under The Hood S2000 Technical and Mechanical discussions.

Extreme oil consume, 5 liter every 7500km

 
Old 01-06-2019, 04:22 AM
  #21  
 
flanders's Avatar
 
Join Date: Aug 2013
Location: Sweden
Posts: 2,680
Liked 129 Times in 126 Posts
Default

Do a compression check, that will most likely show the reason on your high oil consumption.
There is no way a faulty PCV or some small gasket is the problem.
flanders is online now  
Old 01-06-2019, 05:10 AM
  #22  
 
Chuck S's Avatar
 
Join Date: Jul 2014
Location: Chesterfield VA
Posts: 7,072
Liked 247 Times in 236 Posts
Default

Excessive crankcase pressure forces oil out several places. A new PCV is cheap and worth changing.

Spending hundreds or thousands of dollars/euros on an engine rebuild is an option, of course, put adding a quart/liter every 1000 miles or kilometers is inexpensive. Even "exotic" 10W-30 multi-grades are less than US$8/qt in 5qt bottles. $40 extra every year is all it costs if you're going thru 5 quarts in that time. Note 5W-40 is an approved oil and a bit thicker at operating temperatures so that is worth trying as well.

-- Chuck
Chuck S is online now  
Old 01-06-2019, 05:45 AM
  #23  
 
zeroptzero's Avatar
 
Join Date: Oct 2009
Location: Out There
Posts: 14,859
Liked 80 Times in 79 Posts
Default

Originally Posted by Filigranas View Post

One member suggested to change this screws. Since lasth month, mines do leak.

Check this out:
I can see at least three oil leaks in this one picture, so start by repairing the leaks with the new gasket kit.

Have you ever checked your spark plugs ? If the motor is consuming 5 litres of oil through the combustion chamber check the plugs as they should be black or oil soaked, it will give you an indication of what's going on. You may also need new valve seals, try to do a compression check and leakdown test in the future.

Avoid the oil consumption treatments as all they do is thicken up the oil, you are better off running thicker oil compared to using an oil thickener additive. You may have frozen piston rings that are being affected by combustion deposits/varnish. A mild oil treatment may help free up piston rings if that is part of the issue - something like auto-rx , check out auto-rx.com for info on their products.

Check your coolant for any oil deposits in case you have a head gasket leak, check the coolant overflow tank for deposits and the radiator fluid.

Try a conventional 40 weight motor oil and change it more often, and see if there is any change in oil consumption compared to the synthetics you've been running, or just try a different brand of oil.
zeroptzero is offline  
Old 01-06-2019, 07:25 AM
  #24  
Registered User
Thread Starter
 
Join Date: Dec 2018
Posts: 42
Liked 0 Times in 0 Posts
Default

Originally Posted by Scigheras View Post
If you read carefully, that service letter mentions only up to 1 liter per 1600 km, in the case those 1600k's were driven during constant high-rpm (racing?) conditions. That seems pretty reasonable to me, as opposed to 1 liter per 1000 km in normal/street driving conditions.

Not saying this will be your problem 100%, but probably you have, like many AP1's, bad piston rings and/or ovalized cylinder bores, resulting in bad oil consumption. In that case you will have to rebuild or replace the engine .
I hope to dot have to rebuild the engine, fingers crossed!

Originally Posted by flanders View Post
Do a compression check, that will most likely show the reason on your high oil consumption.
There is no way a faulty PCV or some small gasket is the problem.
I am waiting for a date with the mechanic, this week I hope.

Originally Posted by Chuck S View Post
Excessive crankcase pressure forces oil out several places. A new PCV is cheap and worth changing.

Spending hundreds or thousands of dollars/euros on an engine rebuild is an option, of course, put adding a quart/liter every 1000 miles or kilometers is inexpensive. Even "exotic" 10W-30 multi-grades are less than US$8/qt in 5qt bottles. $40 extra every year is all it costs if you're going thru 5 quarts in that time. Note 5W-40 is an approved oil and a bit thicker at operating temperatures so that is worth trying as well.

-- Chuck
I use Motul, in fact bought a full carton of 4 boxes, 20 litters for 100 euros, 25 euros each. What I will consume in 2 years, 15.000 km, two oil changes. Of course adding a extra can is inexpensive, but I am afraid the engine can broke in the future as this going worse or the catalisator

Originally Posted by zeroptzero View Post
I can see at least three oil leaks in this one picture, so start by repairing the leaks with the new gasket kit.

Have you ever checked your spark plugs ? If the motor is consuming 5 litres of oil through the combustion chamber check the plugs as they should be black or oil soaked, it will give you an indication of what's going on. You may also need new valve seals, try to do a compression check and leakdown test in the future.

Avoid the oil consumption treatments as all they do is thicken up the oil, you are better off running thicker oil compared to using an oil thickener additive. You may have frozen piston rings that are being affected by combustion deposits/varnish. A mild oil treatment may help free up piston rings if that is part of the issue - something like auto-rx , check out auto-rx.com for info on their products.

Check your coolant for any oil deposits in case you have a head gasket leak, check the coolant overflow tank for deposits and the radiator fluid.

Try a conventional 40 weight motor oil and change it more often, and see if there is any change in oil consumption compared to the synthetics you've been running, or just try a different brand of oil.
Radiator is brand new, I got an accident and was replaced, will check the sparks since I got to do a compresion test, but as I was saying, since I bought this car with only 37.000 km with 4 years had a lot of oil consume.


thanks all!
Filigranas is offline  
Old 01-06-2019, 07:27 AM
  #25  
Registered User
Thread Starter
 
Join Date: Dec 2018
Posts: 42
Liked 0 Times in 0 Posts
Default

Originally Posted by Filigranas View Post
I hope to dot have to rebuild the engine, fingers crossed!



I am waiting for a date with the mechanic, this week I hope.



I use Motul, in fact bought a full carton of 4 boxes, 20 litters for 100 euros, 25 euros each. What I will consume in 2 years, 15.000 km, two oil changes. Of course adding a extra can is inexpensive, but I am afraid the engine can broke in the future as this going worse or the catalisator



Radiator is brand new, I got an accident and was replaced, will check the sparks since I got to do a compresion test, but as I was saying, since I bought this car with only 37.000 km with 4 years had a lot of oil consume.


thanks all!

Edit:

Some mechanichs without seeing the car says might be valve stem seals,

Quotted from 1500 to even 4000 euros!

In case was it, what might have been the cause of it´s degrading and how much is a fair price and price for the Honda OEM pieces to replace?
Filigranas is offline  
Old 01-06-2019, 07:31 AM
  #26  
Registered User
Thread Starter
 
Join Date: Dec 2018
Posts: 42
Liked 0 Times in 0 Posts
Default

Where is the EDIT icon? I can´t find it.

There are this threads on a Spanish forum about valve stem seals

Retenes de valvulas; se rajan? - S2000 - Club HondaSpirit

Cambio de retenes y copelas de las válvulas - S2000 - Club HondaSpirit
Filigranas is offline  
Old 01-06-2019, 07:37 AM
  #27  
 
nubbel's Avatar
 
Join Date: Jul 2014
Posts: 63
Liked 9 Times in 7 Posts
Default

You are driving yourself crazy with all these extensive and therefore expensive POTENTIAL FIXES...

Just start small, do the easy and quick things first

In case it doesn't get rid of your problem you can still invest in further diagnostics/repairs.

As mentioned many times before, fix your obvious oil leaks and replace any other gaskets on the valve cover along with a new AP1 S2000 PCV valve - the Acura one pictured above does not fit your AP1 valve cover.

GENUINE HONDA PCV VALVE S2000 99-03 CR-V 97-01 - https://goo.gl/Qoczb7




Then get a compression tester off of Amazon, no need to spend more than €30 to €40 for one - the numbers might not be accurate, but what you are looking for is CONSISTENCY across YOUR pistons and spending more money is not necessary for that.

While doing that, take a look at your spark plugs, if they are black and covered in soot you might be running rich or it might be a sign of oil getting into the combustion chamber.

https://imgur.com/a/12Rvr - These are mine after 12.000km, I know it's not a lot but might give you an idea what to look for.
However, there are many other threads going into detail on "how to read spark plugs".
nubbel is online now  
The following users liked this post: nubbel
Filigranas (01-06-2019)
Old 01-07-2019, 10:08 AM
  #28  
Registered User
Thread Starter
 
Join Date: Dec 2018
Posts: 42
Liked 0 Times in 0 Posts
Default

Being quotted this from Cox Honda UK

Hello,



Thanks for your message. See quotation below for parts:

Filigranas is offline  
Old 01-07-2019, 11:54 AM
  #29  
Registered User
 
Join Date: Jun 2018
Posts: 438
Liked 86 Times in 66 Posts
Default

TDC Oring = #10 in image
Part # 91333-PCX-003

Oil Filler Gasket #6
​15613-PC6-000

Oil Dip Stick with O Rings #7
​15650-PCX-006​​​​​​



Cam Idle Gear O-Ring #23
91301-PCX-003

TCT Outer Oring #16, but might as well replace 14 and 15 too
#16 14514-PCX-005
#15 14513-PCX-005
#14 14512-PCX-005




TCT Peep hole Crush Washer #11
15302-PE0-300



@Filigranas
Deckoz is offline  
The following users liked this post: Deckoz
Filigranas (01-07-2019)
Old 01-07-2019, 01:04 PM
  #30  
 
nubbel's Avatar
 
Join Date: Jul 2014
Posts: 63
Liked 9 Times in 7 Posts
Default

Originally Posted by Filigranas View Post
This is still the wrong PCV valve for your car

Get the black angled one

Originally Posted by Filigranas View Post
Oil Dip Stick(cant order orings separate) – On quotation below
If you want to save a few bucks you can buy the dip stick o-rings separately instead of the whole dip stick.

I've used 6,0mm x 2,5mm (inner diameter x thickness) o-rings made of NBR (Nitril-Butadien-Rubber = oil and heat resistant. If you want to go even higher quality you can use green HNBR o-rings - comparable to OEMs).


Hmm since you are already pretty invested in overhauling your engine... Are you still running your stock AP1 valve retainers?
If you do not plan on replacing them, at least, when the valve cover comes off, make sure to take a real good look at them and make sure they are still fine... for now
nubbel is online now  
The following users liked this post: nubbel
Filigranas (01-07-2019)

Quick Reply: Extreme oil consume, 5 liter every 7500km


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands