240 General: 1988 Volvo 240 GL B200E K-JET ENGINE -OIL IN AIR INTAKE HOSE

[crcowley]

Hi,

I’m hoping that one of you clever people out there can help me with an issue relating to a residue of oil in the air intake hose from the air filter housing to the engine.

I have a 1988 Volvo 240 GL with a B200E K-Jetronic engine.........I have tried to understand from other posts as to what may be causing this, but am totally confused with talk of “Flame Traps”, “PCV’s”, “Oil Traps” etc. It all seems to be located under the intake manifold, and as a novice to this game I am loathed to go in gung ho without knowing what the cause may be. Perhaps it isn’t an issue at all, but I suspect something may need attention.....the engine has done 221k of miles after all!

Many thanks in advance of any advice forthcoming!

All the best.

Charles.

[Bob Meadows]

Charles:~
This link should take you to a "how to do it" - the pictures have disappeared but it is still a descent guide https://www.volvoforums.org.uk/showt...ght=flame+trap

The job is a little fiddly but quite straight forward with no great problems- when I done my car (same model as yours) the parts just needed a light clean, this included the catchment tank. You may also find that the flame trap itself has been removed, common practice now to leave it out.
All parts are accessible without removing the manifold.
If you have a manual then it is also covered etc.
The oil build up is a likely cause of the crank case ventilation needing a service.
With a little luck all existing parts can be cleaned and reused:

Nothing to be afraid of- give it a go.
Good luck.
Regards Bob.

[Clan]

Originally Posted by Bob Meadows

Charles:~
This link should take you to a "how to do it" - the pictures have disappeared but it is still a descent guide https://www.volvoforums.org.uk/showt...ght=flame+trap

The job is a little fiddly but quite straight forward with no great problems- when I done my car (same model as yours) the parts just needed a light clean, this included the catchment tank. You may also find that the flame trap itself has been removed, common practice now to leave it out.
All parts are accessible without removing the manifold.
If you have a manual then it is also covered etc.
The oil build up is a likely cause of the crank case ventilation needing a service.
With a little luck all existing parts can be cleaned and reused:

Nothing to be afraid of- give it a go.
Good luck.
Regards Bob.

The flame trap was deleted by volvo 26 years ago .
you need to think hard before removing the breather housing on the block , if the rubber pipe going down into the sump sticks to the housing it will pull up out of its clip in the bottom of the block meaning you will have to take the sump off to refit it properly.

[crcowley]

Originally Posted by Clan

The flame trap was deleted by volvo 26 years ago .
you need to think hard before removing the breather housing on the block , if the rubber pipe going down into the sump sticks to the housing it will pull up out of its clip in the bottom of the block meaning you will have to take the sump off to refit it properly.

Many thanks for this additional advice - I will indeed be very mindful before removing anything!

All the best.

Charles.

[Bob Meadows]

Hello Charles:~
I found the Haynes manual fine for this procedure: because of the learning curve just take some time: If you are unsure then very easy to get positive advice without sounding alarmist.

I'm sure that once completed you will find that it is a straight forward job when approached with reasonable care.
Regular oil & filter changes are part of the routine in keeping this system working as designed (sure you know that though)

Most of these type of jobs are perfectly doable by a home mechanic- one reason we run them I suppose.
Good Luck.
Regards Bob.

[crcowley]

Thanks Bob.

Yes, I've just found this on page 78 of my Haynes manual, so will give it a go when the weather allows! To be honest with you, I didn't even know what PCV stood for until you explained!!! I have checked back through the service records, and there is no mention that this procedure has ever taken place, which is a bit worrying after 221k of miles!!! At least there is no oil seeping from the rocker cover gasket, so all good there. My car hasn't run on the road for 12 years now, and the engine hasn't been run for three years so plenty to do!!! I guess I should replace the cam belt before even thinking of turning it over again in case that snaps on start-up!!!

Having a lot of fun though, and determined to get it up & running again.......and the forum is absolutely invaluable, being able to get advice from kind people like yourself.

Many thanks again.

Charles.

[crcowley]

Originally Posted by Bob Meadows

Charles:~
This link should take you to a "how to do it" - the pictures have disappeared but it is still a descent guide https://www.volvoforums.org.uk/showt...ght=flame+trap

The job is a little fiddly but quite straight forward with no great problems- when I done my car (same model as yours) the parts just needed a light clean, this included the catchment tank. You may also find that the flame trap itself has been removed, common practice now to leave it out.
All parts are accessible without removing the manifold.
If you have a manual then it is also covered etc.
The oil build up is a likely cause of the crank case ventilation needing a service.
With a little luck all existing parts can be cleaned and reused:

Nothing to be afraid of- give it a go.
Good luck.
Regards Bob.

Hi Bob,

Many thanks for taking the time to reply to my question, and for offering your invaluable advice - I will give it a go!

I do have a manual of sorts....the Haynes one, not sure if that is what you are referring to as opposed to an official Volvo servicing manual?

I'm slightly phased by the response from Clan regarding the oil pipe sticking to the sump housing, so will watch out for that.....like everything on my car, nothing is budging easily and there is the constant fear of breakage etc!

Thanks once again.

Charles.