Hi,

I know a small amount is ok, but how much is a small amount? Is this OK for a 108,000mile car?

 

up

 

cant see alot in there bud but tht is a high mileage engine so expect a little more than average

 

believe me mate dont worry about small amount ive seen alot worse with alot less miles

 

So far as making any judgement about the condition of your engine is concerned, there isn't really an OK or not-OK amount of oil to have in the throttle body like in your picture, as it almost certainly won't be coming from a leak. Much more likely is that it's just being sucked in through the air intake pipework from the crank and/or cam breathers, which is completely normal on a standard Impreza.

Performance-wise, it's a slightly different story, as oil in the intercooler will reduce its cooling efficiency to a certain extent. If you're worried about that, the only way to avoid it is to fit a catch can, or if you can't be bothered with that you could remove your intercooler every few thousand miles and flush it out with degreaser.

Plenty of guides and other info on catch cans here if you do a search.

 

Thanks guys,
FMIC going on soon, along with a catch can I feel!

 

Ollie: That doesn't look like a lot of oil but photos are never the best means of determining just how much there is. Add a breather to the crank case and each cam cover and you will get rid of the problem if it is indeed a problem.

 

Thanks Harvey. It's the first engine I've really taken apart, other than my Morris Minor! Just wasn't expecting it I guess!

 

If it helps at all this is the amount of oil that was in my IC probably 2-3 days before the engine lost compression ( well what was left )




After my rebuild theres still very small amounts but its more of a sticky residue of oil.

 

Thanks, that's settled my mind somewhat. Nowhere near that much!

What caused the failure in the end?

 

Poor previous rebuild by the previous owner, i saw the signs when i bought it (reciept wise) that something wasnt right, but heart before mind as the car and engine bay was immaculate.


All good now though after Scoobyclinic did their thing with it