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Seafoam, interesting stuff

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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Ozark Lee
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Post by Ozark Lee »

Suck - or should I say slurp - it off of the vac tree behind the throttle body. Be prepared to reset a CEL.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
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1972 142 Grand Luxe

sony2000
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Location: Montreal, QC, Canada

Post by sony2000 »

Gentlemen, please don't put that stuff in the vacuum system. I used it to remove the carbon from my two stoke outboard motor, the purpose for which it was initially made. I believe strongly that if you inhale those fumes you will do lasting damage to your lungs. It might even kill you, or cause cancer. It should be the same product as the in the carb cleaner spray. Please put it in the crankcase. If you make it airborne, you can't control it.
88 Volvo 760T
90 Volvo 760T
94 Volvo 855T
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04 Volvo S60R

chuckcintron
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Post by chuckcintron »

Good point. Plus, who knows what the effects of this stuff are on plastic or neoprene parts? A friend of mine just spent a looong time figuring out how badly he messed up his EGR valve and a couple of plastic parts on his throttle body, on his Lexus (edit: he was using 'carb cleaner').

-Chuck
Last edited by chuckcintron on 06 Mar 2008, 06:07, edited 1 time in total.
1997 855GLT

bigfinn
Posts: 50
Joined: 30 December 2007
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Location: Michigan

Post by bigfinn »

Ozark Lee wrote:Suck - or should I say slurp - it off of the vac tree behind the throttle body. Be prepared to reset a CEL.

...Lee
Found the vac tree....any particular branch, or just one of the "unused" branches with a rubber cover on it....also, what do you mean by reset a CEL?
IPD Sport Springs. Koni Yellows. IPD endlinks. IPD strut bar.

160,000 miles

MadeInJapan
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Post by MadeInJapan »

Any vacuum tree inlet will work...it all goes to the same place.
Have fun and please give us a report.
'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

bigfinn
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Post by bigfinn »

Ran Seafoam through the intake today. Attached a 1/4 inch diameter vacuum line to the tree branch, and sucked in about 5 ounces of seafoam. Shut off the engine, waited 10 minutes, started engine and ran engine at 2500 to 3000 rpm for about 5 minutes. Lots of white smoke from the tailpipe....Seemed to work fine. I will add it to the crankcase when I am closer to an oil change.

Here's my question....Would the results be the same if you were to use Gumout or some other fuel additive engine treatment to the intake? Why only Seafoam?
IPD Sport Springs. Koni Yellows. IPD endlinks. IPD strut bar.

160,000 miles

MadeInJapan
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Post by MadeInJapan »

Good question and I don't have the answer. All I know is that we're hearing rave reviews about SeaFoam and not about Gummout, etc.
'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

mrreilly
Posts: 259
Joined: 3 August 2006
Year and Model: 1998 Volvo S70 GLT
Location: Notheast, Ohio

Post by mrreilly »

How long can SeaFoam sit in the crankcase? Does it matter?
1998 Volvo S70 GLT Black/Tan
Approx. 173,000 3/27/2010
My major repairs:
Timing Belt, Left&Right Control Arms, Tie-rod ends, Lower Engine Mount, Engine Stabilizer Mount, IPD Sway Bar Links, Brakes , Head Gasket, PCV System, Turbo Rebuild, and more

Volvo_240_Atari_2600
Posts: 245
Joined: 11 February 2007
Year and Model: 89 245 GL
Location: Jupiter, Florida

Post by Volvo_240_Atari_2600 »

Got to do it... finally...
Ohhhh it smoked alright.

I did it through the Vacum line from the brake booster. Reason being I was already replacing the PNP switch and I really could not ID the three tee by the throttle as mine seems to have more than three and I was not sure if it was the correct place to tap into.

It's not easy to do alone...

The car ran rough with the vacum line wide open so I rigged a piece of 2x4 between the pedal and the drivers seat.

The seafoam was sucked up very fast... so fast the car cut out almost at the end of the drink.

So I gave it the 15-20 minutes, and started the car.

Starting the car was nerve racking as it did not want to start and then when it did, it pu putted away.... Then I gave it a little gas and the smoke was thick and white.

Drove it about 5 miles and lets see how she responds tomorrow.
I will post back my findings as the days go by.

98 v70 by the way with 169k

Eric

th-edi ll
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Joined: 9 March 2008
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Location: Manhattan, KS

Post by th-edi ll »

This stuff almost seems to good to be true and you know what they say about that.... are you guys spokesmen???

J K :wink:

I am probably gonna add this to my Stage Zero blitzkrieg on the S70 I am picking up this weekend....

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