1996 850 Turbo - "Flamebox", Dealer says replace ?

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dfra00 - 13 Mar 2007 15:19 GMT

Volvo dealer detected "Positive Crankcase Pressure"
Thinks it is caused by bad "Flamebox" and has recommnded replacement.
Could anyone direct me to a website that has information on this topic.

thank-you.

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Mr. V - 13 Mar 2007 15:59 GMT

Although applicable to the 7 and 9 series, this should get you
started.

http://brickboard.com/FAQ/700-900/EngineTurbo.htm#ExcessCrankcasePressureinB230FT

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Aawara Chowdhury - 14 Mar 2007 03:54 GMT

> Volvo dealer detected "Positive Crankcase Pressure"
> Thinks it is caused by bad "Flamebox" and has recommnded replacement.
> Could anyone direct me to a website that has information on this topic.
>
> thank-you.

Just take the flame-trap out. It isn't needed. Later versions of
the same engine (in the S70 and S60) don't have a flame-trap.

AC

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Email: echo 36434455860060025978157675027927670979097959886449930P | dc

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SilverSurfer - 22 Mar 2007 15:15 GMT

Thank-you for the response. However it appears that the flame-trap only
applies to non-turbo engines.
Mine is a turbo so I am probably dealing with the oil separator.

Kirk r.

>> Volvo dealer detected "Positive Crankcase Pressure"
>> Thinks it is caused by bad "Flamebox" and has recommnded replacement.
[quoted text clipped - 6 lines]
>
> AC

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Mike F - 14 Mar 2007 13:28 GMT

If the oil change maintenance has been neglected, the oil trap (a
plastic box under the intake manifold) will get clogged up. Because of
its design, it's almost impossible to clean out, so replacement is a
common repair.

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Mike F.
Thornhill (near Toronto), Ont.

Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)

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