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seafoam works! [merged]

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cranky

Probationary Member
12
2
Nov 15, 2003
I have been using seafoam in heavy equipment engines for years and I have seen it make dramatic differences in performance and idle quality. I recently had a problem with low power from my 91 talon. It felt like the computer was removing timing. Normally what I do is find a secluded spot because you will smoke down your whole neighborhood. Start the engine and let it get up to opperating temp. I remove a vacum hose and put it in the can and rev the engine to about 2500 rpm and suck the can dry. Shut off the engine and let it sit for about 15 minutes. Then start it back up and run it down the road, and run it hard. This will remove a substantial amount of carbon build up from the combustion chambers. :thumb:
 
LOL i have some seafoam sitting in my house waiting to be used but i never used it ### people told me it might expose leaks that carbon was covering up. any truth to that? how likely is it? i have about 85k on my motor
 
Carbon that has built up on the top of the piston can actually help raise compression in a motor. Sometimes to undesirable highs. This is because the carbon helps seal where the piston rings are. Other times it keeps compression from being too low because it helps seal where the worn areas in the piston rings are.

It's a bit of a risk but me, I'd do it anyways. If I had piston ring problems I'd rather correct them with new rings rather than having built up carbon junk doing it. :)
 
Plain water will do most of that, more slowly. Water and brake fluid does a remarkable job, and the cloud comes out thick enough to walk on. Any of these methods carry the warning of hydrolocking: not recommended for the dim of thought.

ROFL That was just a funny way of putting things.
 
I have 107K miles on my 98GST. Did the "across the board" treatment seafoam treatment about 8K miles ago with EXCELLENT results. Lifter tick gone, noticeably smoother and steadier idle. Ocassional phantom knock detected with DSMLINK - GONE. My car was however very sound with good compression prior to this and it remains fine.

By "Across the board treatment" I mean:

A) 3/4 can in crankcase added through oil cap and another 3/4 can in about 3/4 full gas tank . Drove gently about 150 miles with it.

B) Warmed up car, then sucked 1 can through vaccuum line, let sit 30 minutes, restart. Did this at night and I'm glad I did. The amount of smoke upon restart was freaking incredible. I'm surprised it didn't trigger some kind of military response as the cloud was probably visible from space. Pic of smoke on restart and as I drove around clearing it here in Miami:
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Drove around gently with ocassional very slight (5-7 lb boost) surges for about 45 minutes until all smoking from exhaust pipe stopped (it did take 2-3 weeks for it to dissipate from over the city though :p).

C) Took out the plugs (really dirty after step B but engine still ran fine). Poured about 2-3 ounces onto the top of each piston through spark plug hole, let sit overnight. Using a shop vac, thin tubing which fit into the spark plug hole and some duct tape to tape the tubing to the larger shop vac nozzle I vaccumed out any remaining seafoam residue and dissolved carbon from top of pistons (the piston tops were nice and clean after). Replaced same dirty-ish plugs, ran car gently for 15 +/- minutes.

After A, B, C above the improvement in throttle response, idle and lifter tick noise gone was readily apparent.

D) Changed oil, filter, brand new spark plugs.

Car continues to run beautifully ever since. Guys at some of the meets I go to are amazed at how the car idles (mods in my profile) and a guy I took for a spin was blown away at the difference in power on my car over his (he has few mods on his GSTs and the power difference is my mods, not the seafoam obviously).

I now do step A about 100 miles before each oil change, then avoiding any hard boost aferwards until I change the oil and filter.

I do understand the high mileage concerns of using this (burning off carbon on rings, etc. that was otherwise "hiding" a major problem not caused in and of itself by seafoam). Nonetheless I had ZERO issues and will do the full treatment every 20K miles or so going forward.

PS: For those easily duped the smoke cloud pic is not really my car after seafoam, its a pic I googled of the smoke from the Mt. Pinatubo volcanic eruption in the Phillipines in 1991.
 
Ran some seafoam today along with a new air filter, oil, plugs and wires, gotta say. my baby hauls balls soooo much more than it used to. ridiculous amounts of smoke, but I gotta say. I will remember this product in the future. A+
 
So i bought some seafoam today so clean clean out the gunk in the engine.....i followed the directions as per google.... but my thing is, is that i put 1/3 in the gas tank, 1/3 in the oil and it said to put the other 1/3 in the PCV tube and let it suck into the motor.... Mine didnt suck into any of the fluid up....googled some more, and i read that i can just pour it into the tube....the tube leads into the turbo inlet pipe mind you..... so my question to you is....were do i let the seafoam get sucked into the motor at? What hose can it be done through? I ended up just pouring it into the tube anyways.....let it sit for 15 and started it up.....no smoke or nothing....so i dont think i did it right...can someone please tell me how or direct me to somewere that shows how to specificaly do it on out motors please!!!!
 
Do you know where the vacuum line is that goes to you fuel pressure regulator, pull that off the regulator and keep it connected to the intake manifold. Then use a full can, and slowly suck it in. Let it sit for about 10min. Turn it on rev it and drive around the block. I also suggest changing plugs after this.
 
It goes in the vacuum line at the break booster, this line goes into all four cylinders. Carefull now my friend if you have some holes or leaks being blocked by the "gunk" in your engine the seafoam will clear them for drip drip time.
 
Do you know where the vacuum line is that goes to you fuel pressure regulator, pull that off the regulator and keep it connected to the intake manifold. Then use a full can, and slowly suck it in. Let it sit for about 10min. Turn it on rev it and drive around the block. I also suggest changing plugs after this.

Ok cool thanks, now do you think it would have hurt anything having it pass through the turbo like it did before?
 
you are ballsy to stick anything in there, the brake booster is the best place, trust me I have tried everywhere else. Did you get the Batman smoke screen.
 
That batman smoke screen is no joke, Whan i did mine is smoke for a good 2 days beacuse i put one full can in the gas tank.. Thats some good stuff.
 
you are ballsy to stick anything in there, the brake booster is the best place, trust me I have tried everywhere else. Did you get the Batman smoke screen.

No i actually didnt get any smoke at all....LOL that is why i made this post...... and think i did it wrong......LOL....but hey it was a learning experience....

Now I know (And knowledge is Power)
 
Does anybody read these things? Steve is gonna have to come straighten you all out.
It goes into the purge port on the throttle body. That port is so small that there is 0% chance of hydro-locking a cylinder, the stuff gets distributed evenly throughout the plenum, it'll clean the TB, the port has the suction to siphon the juice out of the bottle, and hell, after all, that is the port that is designed to suck in combustible vapor for distribution to all cylinders.:hellyeah:
It's the red-striped hose, port marked "P"(for "purge")on the TB. If your life is easy, you just start the car (with a hot engine, of course), pull the line on the purge control solenoid that goes to the TB, stick it in the can down to the bottom, then start opening the throttle enough to keep it from dying. The can will be empty before you know it, and you will be batman.
If your life is not easy, you will need a 2ft. length of 1/8 to 3/16 vacuum hose. Disconnect "P" at the TB, and hook up the hose there. That way, you get to find somewhere nice to rest the can while revving the engine and choking on the smoke. I think I slide mine between the battery and the firewall, or somewhere around there.
P.S. If you have a cracked exhaust manifold, you will find that out right away. I could see changing the oil afterwards, but my plugs always look fine when I pull them after a sea-foaming.
 
So i bought some seafoam today so clean clean out the gunk in the engine.....i followed the directions as per google.... but my thing is, is that i put 1/3 in the gas tank, 1/3 in the oil and it said to put the other 1/3 in the PCV tube and let it suck into the motor.... Mine didnt suck into any of the fluid up....googled some more, and i read that i can just pour it into the tube....the tube leads into the turbo inlet pipe mind you..... so my question to you is....were do i let the seafoam get sucked into the motor at? What hose can it be done through? I ended up just pouring it into the tube anyways.....let it sit for 15 and started it up.....no smoke or nothing....so i dont think i did it right...can someone please tell me how or direct me to somewere that shows how to specificaly do it on out motors please!!!!

Disconnect the brake boost hose from the boost reservoir and use that to slurp up the Seafoam MT (don't immerse the hose, let it suck up fluid and air at the same time -- "slurp" LOL. I've done this twice now, it works properly. Also, don't use a full can, just follow the instructions.
 
Disconnect the brake boost hose from the boost reservoir and use that to slurp up the Seafoam MT (don't immerse the hose, let it suck up fluid and air at the same time -- "slurp" LOL. I've done this twice now, it works properly. Also, don't use a full can, just follow the instructions.

this is what i did, i followed the directionds and just the line from the Brake Booster
 
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