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Flame Trap Topic is solved

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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guest

Flame Trap

Post by guest »

What is better a metal or plastic flame trap? Thanks

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Tsquared
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Joined: 17 August 2003
Year and Model: 11 C30
Location: Atlanta GA
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Post by Tsquared »

none
'11 C30 T5

'96 854 - died an early death with 184K miles. Killed by the front end of an LTD on a suicide mission (T-boned and both cars totaled).

Guest

Post by Guest »

So are you saying take out the flame trap permanently? Is that bad? Maybe a more thorough response would help. Thanks

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Tsquared
Posts: 519
Joined: 17 August 2003
Year and Model: 11 C30
Location: Atlanta GA
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Post by Tsquared »

The flame trap was not part of the turbo systems- many have removed the flame trap off the NA (normally aspirated) engines with no ill effect.

I have had the flame trap removed since 60K and now have 125K miles. I did it at the recommendation of a Volvo cert mechanic.
'11 C30 T5

'96 854 - died an early death with 184K miles. Killed by the front end of an LTD on a suicide mission (T-boned and both cars totaled).

MadeInJapan
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Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
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Post by MadeInJapan »

Turbo and NA 850's built in the second half of '96 and beyond as well as the S70 got rid of the flame trap. Even VADIS recommends not replacing it, but tossing it. It was an eroneous design that just clogged up and ultimately caused positive pressure and blow rear main gaskets.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

Guest

Post by Guest »

What was the purpose of the flame trap?

I am an Australian with a 1996 Volvo. Can someone please tell me how to check if it was made after or before flame traps were not put into these cars any more.

Guest

Post by Guest »

Your 96 850 does have a flame trap, its purpose had something to do with a backfire that never really happends that is why it was no long used in the 98 s70's

Guest

Post by Guest »

I contacted Volvo customer service Australia and they say Volvo have recommended taking the flame trap out for last 3 years now but a specialist Volvo mechanic said to leave it in. He said it was put there for a reason and even though the flame trap is not in the S70 the S70 has a different breathing mechanism and so it can not be assumed it is ok to leave it out.

Is there any reasons at all to leave it in or is this specialist Volvo mechanic wrong?

Could he have an interest in me leaving it in to make more money from servicing the car?

Jot
Posts: 593
Joined: 24 January 2005
Year and Model: C30 2010
Location: Orr's Island, Maine

Post by Jot »

A tongue in cheek answer to the Volvo Mechanic. He probably charges one hour to change the trap. A dealer in MA told me to remove it! and I did

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