white smoke

[T5frankie]

on my 850r i have white smoke puffing out the dipstick and the filler cap when running, definately blowing not sucking, i replaced the pcv about 3000 miles ago so it can't be that, any ideas as it's a bit worrying, its puffing alot, car is running spot on

[t5 pete]

White smoke is normally water if you put your hand over the filler cap is there any pressure

[T5frankie]

White smoke is normally water if you put your hand over the filler cap is there any pressure

yes mate

[Harvey]

Does the oil filler have a grid over it or can you see the cam shafts ?.
Try putting a latex glove over the oil filler and cable tie it on the neck ,then start it up if it inflates the glove quite well the pcv needs looking at again or it could be the rings just bedding in still...to the liners.
I take it there is no water loss.

[jamesy12345]

Good thread on this here Frankie, some crap left in the block maybe

http://www.volvoforums.org.uk/showthread.php?t=181833

[T5frankie]

Does the oil filler have a grid over it or can you see the cam shafts ?.
Try putting a latex glove over the oil filler and cable tie it on the neck ,then start it up if it inflates the glove quite well the pcv needs looking at again or it could be the rings just bedding in still...to the liners.
I take it there is no water loss.

as i said its blowing, i have no loss of water no, only just had the intake manifold off this weekend

[t5 pete]

I would say its pressurising then bud either crank case or head

[stribo]

Try this mate:
http://www.matthewsvolvosite.com/for...hp?f=1&t=53448

[Jamest5r]

Forged block's with new pistons and rings will blow mate mine's always done it but after 70 odd dyno runs when it was 1st tuned I stopped worrying about it, mine still puffs out of the dipstick, I reckon the pcv pipework isn't wide enough for the extra pressure???

[Jamest5r]

Also if I open the top of the catch tank you can clearly see smoke so the pcv is working

[stribo]

Forged block's with new pistons and rings will blow mate mine's always done it but after 70 odd dyno runs when it was 1st tuned I stopped worrying about it, mine still puffs out of the dipstick, I reckon the pcv pipework isn't wide enough for the extra pressure???

That's basically what's said on this link.

Try this mate:
http://www.matthewsvolvosite.com/for...hp?f=1&t=53448

But there is a cure.

[Jamest5r]

That's basically what's said on this link.



But there is a cure.

Sorry never read the link just gave him 1st hand info on a similar set up Car

[T5frankie]

Forged block's with new pistons and rings will blow mate mine's always done it but after 70 odd dyno runs when it was 1st tuned I stopped worrying about it, mine still puffs out of the dipstick, I reckon the pcv pipework isn't wide enough for the extra pressure???

funny thing is when i picked the engine up it had a large diameter hose on it to replace the standard pcv probably 6 or7/8ths in width, i looked at it and thought it looked a bit pony so i put the 2000 miles old pcv on from the engine that i took out. problem is now it's blowing my dipstick out a touch and then oil from the dipstick tube comes out

[T5frankie]

That's basically what's said on this link.



But there is a cure.

thats the cure for a smoking dipstick but mine has pressure as well

[t5 pete]

funny thing is when i picked the engine up it had a large diameter hose on it to replace the standard pcv probably 6 or7/8ths in width, i looked at it and thought it looked a bit pony so i put the 2000 miles old pcv on from the engine that i took out. problem is now it's blowing my dipstick out a touch and then oil from the dipstick tube comes out

That's too much pressure for me frank ive built my engine and others which have no smoking or pressure dude to new pistons etc.
Hopefully it will be a blocked breather system i would take the manifold off and go through the system to see if you can find any thing

[T5frankie]

That's too much pressure for me frank ive built my engine and others which have no smoking or pressure dude to new pistons etc.
Hopefully it will be a blocked breather system i would take the manifold off and go through the system to see if you can find any thing

yeah think i will mate and upgrade to thicker hose whilst i'm doing it

[mikealder]

Take the PCV tank off the engine and connect a 5/8" rubber hose to the lower port in the front face of the engine block where the PCV tank would connect, try to blow through it, if you can hear bubbling from the sump the oil return port is clear, if you can't blow through it it's blocked and needs clearing out, worst case scenario is to pull the sump as the drain channel is cast in to the sump and at the bottom it turns through about 160 degrees meaning the last 2" is inaccessible through the port.

I took this picture after I pulled the sump from my old engine which was also blowing oil out of the dipstick tube, the oil return port was blocked solid with carbon, note I removed the sump baffle plates to make it easier to see the oil port:



In my case it was excess blow-by gas pressurising the crankcase so I had the engine swapped for a better one - Mike

[T5frankie]

Take the PCV tank off the engine and connect a 5/8" rubber hose to the lower port in the front face of the engine block where the PCV tank would connect, try to blow through it, if you can hear bubbling from the sump the oil return port is clear, if you can't blow through it it's blocked and needs clearing out, worst case scenario is to pull the sump as the drain channel is cast in to the sump and at the bottom it turns through about 160 degrees meaning the last 2" is inaccessible through the port.

I took this picture after I pulled the sump from my old engine which was also blowing oil out of the dipstick tube, the oil return port was blocked solid with carbon, note I removed the sump baffle plates to make it easier to see the oil port:



In my case it was excess blow-by gas pressurising the crankcase so I had the engine swapped for a better one - Mike

i would have hoped this has been done, its fully rebuilt engine mate

[t5 pete]

i would have hoped this has been done, its fully rebuilt engine mate

Yep that should have been done but need checking another thing is feel if there is any pressure and vacume at the the two pipes that go into the turbo inlet pipe the large one will have pressure and the smaller will have vacume

[T5frankie]

Yep that should have been done but need checking another thing is feel if there is any pressure and vacume at the the two pipes that go into the turbo inlet pipe the large one will have pressure and the smaller will have vacume

ok mate will do