This is crazy, but Oil Burn? The Story of conquering phantoms.
03-08-2019, 02:55 AM
#121
03-08-2019, 05:40 AM
#122
please help again here, my engine might be bad
https://www.s2ki.com/forums/s2000-un...1190696/page5/
https://www.s2ki.com/forums/s2000-un...1190696/page5/
Good news, the mechanic has used a better modern gauge today and results are 12,5 in 3 cilinders and 14 in other, so it means it´s almost new. With that gauge he can print the results, he will email me those later so I can upload here.
So, now, the issue are the gaskets?
thanks all!
03-08-2019, 07:48 AM
#123
The 12.5 and 14 are bar values?
Most here are in the USA. We use psi, not bar. We also use . as the separator, not ,
For those on US shores, bar is atmospheres. 1 atmosphere (1 bar) is about 14.5 psi (the weight of a square inch column of air whose height is sea level to outer atmosphere is about 14.5 lbs).
So 12.5 bar is about 180 psi, while 14 is about 200 psi. Very healthy numbers for almost every other engine made. Not so good at all for an F20 or F22 motor.
A healthy S would be around 16.5 bar.
But most mechanics won't be aware that these aren't good numbers for our cars.
Most here are in the USA. We use psi, not bar. We also use . as the separator, not ,
For those on US shores, bar is atmospheres. 1 atmosphere (1 bar) is about 14.5 psi (the weight of a square inch column of air whose height is sea level to outer atmosphere is about 14.5 lbs).
So 12.5 bar is about 180 psi, while 14 is about 200 psi. Very healthy numbers for almost every other engine made. Not so good at all for an F20 or F22 motor.
A healthy S would be around 16.5 bar.
But most mechanics won't be aware that these aren't good numbers for our cars.
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Filigranas (03-08-2019)
03-08-2019, 08:15 AM
#124
The 12.5 and 14 are bar values?
Most here are in the USA. We use psi, not bar. We also use . as the separator, not ,
For those on US shores, bar is atmospheres. 1 atmosphere (1 bar) is about 14.5 psi (the weight of a square inch column of air whose height is sea level to outer atmosphere is about 14.5 lbs).
So 12.5 bar is about 180 psi, while 14 is about 200 psi. Very healthy numbers for almost every other engine made. Not so good at all for an F20 or F22 motor.
A healthy S would be around 16.5 bar.
But most mechanics won't be aware that these aren't good numbers for our cars.
Most here are in the USA. We use psi, not bar. We also use . as the separator, not ,
For those on US shores, bar is atmospheres. 1 atmosphere (1 bar) is about 14.5 psi (the weight of a square inch column of air whose height is sea level to outer atmosphere is about 14.5 lbs).
So 12.5 bar is about 180 psi, while 14 is about 200 psi. Very healthy numbers for almost every other engine made. Not so good at all for an F20 or F22 motor.
A healthy S would be around 16.5 bar.
But most mechanics won't be aware that these aren't good numbers for our cars.
Last edited by Filigranas; 03-08-2019 at 08:21 AM.
03-10-2019, 03:55 PM
#128
Out of curiosity I went out to Harbor Freight and bought a vacuum gauge to see if I had a crankcase vacuum leak. I measured vacuum as the breather hose at -14hg steady at idle. Just checked my dipstick and it looks like I've lost a quart of oil in 350 miles of street driving/commuting. So unfortunately it looks like replacing the gas cap or any of the other gaskets in the cylinder head is not going to fix my oil burning... It must be getting past the oil rings.
This is an 01 engine with 146K miles btw.
This is an 01 engine with 146K miles btw.
03-10-2019, 04:19 PM
#129
03-11-2019, 12:03 AM
#130
Registered User
Out of curiosity I went out to Harbor Freight and bought a vacuum gauge to see if I had a crankcase vacuum leak. I measured vacuum as the breather hose at -14hg steady at idle. Just checked my dipstick and it looks like I've lost a quart of oil in 350 miles of street driving/commuting. So unfortunately it looks like replacing the gas cap or any of the other gaskets in the cylinder head is not going to fix my oil burning... It must be getting past the oil rings.
This is an 01 engine with 146K miles btw.
This is an 01 engine with 146K miles btw.
A good fix would be to create more vacuum and a better ring seal. Krank vents achieved this, however it make the seals cluck at idle, which I can't imagine is good.
I've been thinking about somehow restricting the breather tube air flow capacity in order to increase vacuum, like inserting a second pcv valve in that hose, but so far it's been easier to just add oil.