Okay this gets me thinking how much oil do you put in you Cosworth over one week. ???
Please state if its in daily use or not etc.
Thanks ReTro.

 

used less than half a litre in 4000 miles.

 

abute half a litre a week and thats everyday use

 

Any more guys> ???
I use just over half a ltr in one week and thats daily use over 200 miles, depends how I drive tbh.

 

cossies big oil burners then? or is it only on higher miles/worn engines its bad?

Ive only done 7K since rebuild so id imagine mines still quite tight.

 

I use mine nearly every day (it all depends on what shift at work im on) and i must put about a quarter to half of a litre if that in mine a week.

 

Thats bloody good for a cossie engine

 

Never knew the YB was a 2 stroke engine.

 

think i must be the only one who doesnt need to top up with oil?!

 

Take it you dont drive it

 

Well i havnt had it out much last couple of years, but even still it doesnt seem to use any.

 

my cossys done 100,000 miles, never been rebuilt and doesn't use an ounce of oil, BUT. . Its a 24v. lol

YB's always burn oil, its what gives them character

 

i have to put a litre in everytime i use mine, its leaking from everywhere! lol, its now off the road to get sorted

 

I forgot to mention my cossie has a small oil leak too lol.

 

mines rebuilt, new pistons rings, new valve guides etc.

running stage 3 on 25psi t3,
Have a bailey breather breathing both sides of the block,
and return to a plastic bottle.

Driving hooligan hard it will use max to min by about 800/1000miles, but the bottle fills up to at least 1/4 litre.
Cruising it doesnt use any at all.

 

a fresh yb should do around 1000 miles for around 1 litre and thats all types of driving..If its more than that its in need of a rebuild or you need to sort your breather out....



cheers danny

 

Not a drop!

 

Quality

 

I take it youve got it rebuilt then james???

Whats the new spec??and did you do it yourself???



cheers danny

 

mines about half a lite evry 3months but only 2sats a month if its nice.

 

hmmmmmmm.. not sure. will have to check that tomorrow!!

but they suposedly "use" a ltr of oil every 700 odd miles..

a wee pic i took from the sierra handbook..

 

Not a drop since the new engine went in.

 

wow, didnt think they would use that much to be fair, my engine has injectors to spray oil into the combustion chamber and even that only uses 1ltr every 1000miles

 

not sure not much,depends how driven but usually about 1litre every 2 to 3000 miles,
160 thou miles no work done on engine still original head gasket boosting 28/30 psi for last 4/5 yrs
used every day all conditions,all year round,
colin

 

One day you Luke may get a 800bhp engine to hold together Danny & have to rewrite those figures & yes my YB's fresh & the breathers fine .

 

1Litre of oil every 620 mile depending on driving style ha ha lol.

 

Impressive, You had it from new?

 

2nd owner,was full ford history when i got it about 6yrs ago,
spoke to previous owner(before i bought) a local lord and only problem he ever had was shock absorbers,
im quite impressed,but been well serviced and never use up to the limiter,think that helps
cheers colin

 

How and when are you checking the oil? What level are you trying to keep it at?

I went through this when I got mine years ago. It will spit out the oil it doesn't want, and then stay at about half full.

You must leave it overnight somewhere flat, then dip in the morning, and don't try and keep it at max level.

 

I had one that needed a litre of oil after getting to silverstone rsoc day (from Kent) lol

If I used it for work it'd need a litre a week easily.. Bit of a smoker!

Every cossie I had drank oil, used to pi55 me off as they looked 5hite bellowing smoke on the over run.

 

Tbh You've just hit the nail on the head, im paranoid and usually like it at max thats prob why it burns it off and im left with half lol.

 

Towards the end before I pulled the engine out for rebuild, I used to have to top mine up everytime I went out in it!!

don't know how many miles that was as I never paid any attention as to how many miles I did, but I used to use it about 4 or 5 times a week.

Got to the point I was just shoving Ł14 for 5 litres Valvoline stuff in it! Fuck using the expensive gear!! Engine was worn anyway so I could get away with it!!

 

It can vary enormously, original engines esp 2wd are likely to use more when ragged, there are NO seals as such in the turbo, so oil naturally goes past this point under the right conditions, the breather system is a joke.
My new bore uses 9.1:1 pistons with 1 1/2" clearance, I had piston slap so bad I needed to turn the stereo up, even when fully warm, still ace mpg and emissions though(head was done).
Before it's 200,937 mile rebuild it could "drink" a litre in 30 miles!!, most was left deposited on me mates work units floor though!!
The oil control rings were seriously shagged, comp ring not far behind it.
tabetha

 

I used about 3 litres just down the straight at Brunters in May
Rich

 

mine uses none so it must be topping itself up with petrol lol!

 

Over run smoke isnt oil, it's fuel

has everyone routed there breathers to return back into the sump? might find a litre in your catch can if not!

it'll vary enormously from car to car, some might have big piston to bore clearance for forged pistons, some will have standard pistons, ring gaps blah blah....


Tabetha....theyre ARE seals in a turbo, Oil seals...metal ones. The only time oil will go past these is when they are worn, or there is crankcase pressure and you have no (or little) backpressure in the exhaust.

I think you mean you have UNDER piston oil spray jets, to cool the pistons. If you had oil firing directly into the combustion chamber, you'd need as much oil as fuel and you would have a very smokey engine! lol

 

used 1 litre in approx 3000 miles, it wasnt a daily driver, it was a weekend/evening toy that used to get thrashed all the time

 

hes got a rotary mate

 

Danny,

No mate that was before the shit happened Never used to burn a drop...you heard how sweet it was!

I've taken over Paul's build that Mark is doing, will be 480/480 when completed, but cars hopefully getting a full respray etc while the engine and front end is out/stripped down

 

Oh

What's he doing on here, this forum's for cosworth's only