Burning oil still after rebuild...

[ijwhiteman]

stop worrying you tart! if your that worried let me follow you in my car and see what happens. im sure its fine mate! o btw my sppon de-cat pipe is the nuts!

Bet it sounds awesom! Its definitely burning, mainly in VTEC but i have also noticed smoke on occasional warm start up...

pcv is positive crankcase ventilation valve bypass it for the crack to see if it helps.
seeing you have rebuilt the head and not the bottom end,more pressure will be on it now as nothing can bypass the stem seals as theyre new so if your rings are worn its gonna show up more now.not being smart but i wouldnt call oil consumption like that acceptable.as suggested leak down test is your best choice here and will cut out the guessing game.

I don't find it acceptable either. I think it may be rings also. Leak down test when i get back from Nurburgring...

Acceptable no, but it does happen sometimes on engines that seem to run just fine But as much as he tracks im not surprised as most engines will consume about .5-1 bottle of oil during hard driving like track conditions.

I saw an oil analysis done once on a Honda, the result was from blackstone labs where they said a user had sent in some oil that had only been used for a track even where about 300miles were covered, the lab said the oil breakdown was consistent with a street driven car that would have 4600miles on it!

I have herd that also about oil after track sessions. However this engine since i have had it has only covered 3000 miles of which included 1hr 20mins of snetterton before i crunched it into the barrier. No idea of previous lifestyle.

i remember reading once that honda had stated somewhere that using approx 1 pint per 1000 miles was normal for a b18c,

so using a litre per 1000 miles aint much more tbh,

i wouldn't be to worried if its still pulling strong, maybe try motul chrono when you run out of silkoline, in my b18c i found castrol 10 40 to consume fast so personally wouldn't recomend that altho some b16b users love it.

I will certainly try a different oil when the Silkoline runs out just to see if that improves it.

honda's burn oil

they always will

very few wont

I kind of dissagree with that this is my 4th B series and i've had a D series also.

D15 177,000 miles never touched a drop.

B16A2 87,000 miles never touched a drop

B16A2 78,000 miles never touched a drop

B16B 77,000 miles never touched a drop

B18C 53,000 miles drinks it for fun, goes down easy like its Fosters or smirnoff ice!!!

Always will get different opinions mate. You know my b18c did not burn a drop of oil ever and i drove that hard and tracked it. And you know i used the same oil as you.

I understand that and both yours and my Brothers B18C with higher mileage neither touch a drop of oil and you are both using Silkoline 5W 40.

I will have to get a leak down test to confirm anything. But i highly suspect oil rings...

 

[martin251184]

Just go to the ring, drive it hard, keep an eye on it and we will sort it when you get back.

Simples!

 

[Dunsy]

HONDA SAY

1 litre for 800 miles if driven in vtec alot

thats about the FN2... 1000 Miles for a litre isnt bad.

i top my oil up every week almost...Smokey cars are the fastest anyway

 

[chrismc_DC2]

Mine uses a reasonable amount of oil, but NO noticeable smoke & thats a 150k mile engine...I strongly suspect the usage on mine is largely down to using Mobil 1 fully synthetic & always keeping it topped up to "over-full"...Changing to Silkolene PRO-S imminently

Noticable smoke in VTEC or on a hot start would have me worried for sure(

If you are satisfied the top end is sound then the rings would be my next suspect...

All depends on the care of the motor in its early life as im sure it wants for nothing now...Smoking/oil usage @ 53k would be unacceptable to me

 

[b16 mini]

i dont get what the big fuss is about.....

mine burns a fair bit at times,and other times uses hardly a drop, but it still made good power recently on a R/R so not bothered.

if it pulls well still then just keep topping it up its not that much hassle,

if you have a de cat then put the cat back in and consumption may be reduced a bit!

 

[chrismc_DC2]

For me, the topping it up part would not be the issue....i do enough of that on mine

Driving a lovely motor such as an EK9 with noticeable oil smoke when i opened it up would annoy the hell out of me as an owner though...

Blue smoke should be reserved for worn out old Fords..

 

[Dunsy]

power smoke

 

[b16 mini]

For me, the topping it up part would not be the issue....i do enough of that on mine

Driving a lovely motor such as an EK9 with noticeable oil smoke when i opened it up would annoy the hell out of me as an owner though...

Blue smoke should be reserved for worn out old Fords..

i've seen loads of smokey dc2's ep3's and dc5, why pick on fords,

 

[Gee]

My B16B burnt zero oil between changes, using fully synthetic.

My B18C burns oil, no sure how much and how many miles at the moment, need to monitor it.

 

[graham084]

a smokey yoke is a pokey yoke

mine was burning loads...about a litre every 500miles

changed the oil to redline 10w40 fully syn and got the neo mapped as it was running very rich...

burns fuk all now maybe 500ml per 1000miles

 

[CAL]

a smokey yoke is a pokey yoke

:

agreed!!!!!!!!!

my old vti smoked like mad and was quicker than my ek9

 

[Dunsy]

nae smoke nae poke

 

[ijwhiteman]

Just go to the ring, drive it hard, keep an eye on it and we will sort it when you get back.

Simples!

I plan too buddy!

HONDA SAY

1 litre for 800 miles if driven in vtec alot

thats about the FN2... 1000 Miles for a litre isnt bad.

i top my oil up every week almost...Smokey cars are the fastest anyway

Fcuk me! i do VTEC a lot! An i'm having to look pretty hard for smoke when i'm caning it and it doesn't appear to be all the time.

Noticable smoke in VTEC or on a hot start would have me worried for sure(

If you are satisfied the top end is sound then the rings would be my next suspect...

All depends on the care of the motor in its early life as im sure it wants for nothing now...Smoking/oil usage @ 53k would be unacceptable to me

I'm looking very hard for the VTEC smoke mainly been told by others that have followed me...

i dont get what the big fuss is about.....

mine burns a fair bit at times,and other times uses hardly a drop, but it still made good power recently on a R/R so not bothered.

if it pulls well still then just keep topping it up its not that much hassle,

if you have a de cat then put the cat back in and consumption may be reduced a bit!

Its not the topping up i really don't care about the oil consumption, its the worry that we have just rebuilt it i'm of the Nurburgring for 12days and i'm concerned there may be a potential problem with the engine.

For me, the topping it up part would not be the issue....i do enough of that on mine

Driving a lovely motor such as an EK9 with noticeable oil smoke when i opened it up would annoy the hell out of me as an owner though...

X2 totally agree!

nae smoke nae poke

Maybe your right, it is fast as fcuk and pulls like an absolute train, plugs are always normal colour not covered in black oily deposits....

 

[b16 mini]

Its not the topping up i really don't care about the oil consumption, its the worry that we have just rebuilt it i'm of the Nurburgring for 12days and i'm concerned there may be a potential problem with the engine.

to be honest its not been re built has it, simply a head overhaul, i would of thought it obvious that a set of stem seals isn't going to solve a large ish oil consumption issue, if you knew about it and wanted to do something about it then honing the bores and replacing the rings would of been a good idea well it was in bits........

simple answer ....
if you dont like smoke put your cat back in,chances are this will reduce consumption as well.

bad air fuel ratio can play a big part in this.

 

[chrismc_DC2]

simple answer ....
if you dont like smoke put your cat back in,chances are this will reduce consumption as well.

bad air fuel ratio can play a big part in this.

Surely refitting the CAT might reduce normal exhaust "fumes" from the tailpipe...but if the smoke is blue & its burning oil then it needs addressing at some point....no point masking it

Not sure how refitting a CAT reduces oil consumption or how an iffy AFR can make it burn oil??

 

[b16 mini]

Surely refitting the CAT might reduce normal exhaust "fumes" from the tailpipe...but if the smoke is blue & its burning oil then it needs addressing at some point....no point masking it

Not sure how refitting a CAT reduces oil consumption or how an iffy AFR can make it burn oil??

its simple,

running rich-washing bores

running lean-higher combustion chamber heat, both can result oil burning

 

[chrismc_DC2]

He has already said it runs & goes great though....so i think you are barking up the wrong tree

Would have to be a fairly serious AFR issue to make it bore-wash (terrible fuel consumption too) or run lean (down on power/overheating) to the extent of burning oil

Im still curious as to how is refitting the CAT going to help oil consumption too? You didnt answer that one....

 

[b16 mini]

He has already said it runs & goes great though....so i think you are barking up the wrong tree

Would have to be a fairly serious AFR issue to make it bore-wash (terrible fuel consumption too) or run lean (down on power/overheating) to the extent of burning oil

Im still curious as to how is refitting the CAT going to help oil consumption too? You didnt answer that one....

i did but it must of gone over your head, fitting a de cat can have quite an affect on afr, THIS IS PROVEN, and i have also noticed it first hand on my own car,

you wont notice it unless you have a wide band or a lambda probe in the tail pipe,

afr's dont have to be excessively bad to contribute to oil consumption, especially if there is issues elsewhere.

 

[chrismc_DC2]

Decat="slightly" leaner AFR @ WOT than stock (combined with other breathing mods) Agreed. Not enough to be dangerous or run significantly hotter to make oil burning "worse" IMO....

If it has a seperate issue that is causing the oil burning then refitting the CAT wont stop the smoke....

 

[b16 mini]

Decat="slightly" leaner AFR @ WOT than stock (combined with other breathing mods) Agreed. Not enough to be dangerous or run significantly hotter to make oil burning "worse" IMO....

If it has a seperate issue that is causing the oil burning then refitting the CAT wont stop the smoke....

ok seeing as your such a know it all and seem to think i'm telling lies based on my own personal experience........

heres a quote from a thread about another of this forums members cars and the affect of tuning and AFR's from some one with lots of knowledge in this type of thing....

Even fitting a decat on its own will lean out your mixture and cause more oil consuption in the long term from lean heat.

another thing,

I just checked my oil tonight after a long trip the other day, with lots of vtec, and always high in the revs (4.7fd on long stretch of duel carrageway) and nothing had been consumed, last time i done a run like the with a de cat fitted it needed a 200-300ml top up.

Oh and its not just at WOT that it will be lean, it will be lean on idle and through most of the range.