Mustang Forum - Mustang World - 96-98 4V guys...Easy way to clean the IMRC's

06-17-2007, 08:51 AM

blackfang

Slow as sh!t

Join Date: Feb 2002

Location: Richmond VA

Posts: 9,653

96-98 4V guys...Easy way to clean the IMRC's

Kyle posted this and I was Skeptical at first, but damn it works!!

Quote:

Ok, you all wanna know about Seafoam. Seafoam is this stuff that is used to dissolve carbon deposits in your combustion chambers and will do the same on the IRMC's pretty well. I was sceptacle at first, but then I used it and WOW, what a difference on my 96 Cobra. It can be bought at most autoparts stores. I'm big over on www.stlmustangs.com, and if you post over there asking about it, you'll here about 30 people sing its praises. People say to put it in the gas, but then it's just like injector cleaner and doesn't do **** barely. I was told to use the PCV valve to suck it into the motor, so that's what I did.

Step 1: with the motor off, simply pull the PCV hose out of the DRIVER-side valve cover, but leave it connected to the manifold. On 5.0's use the vacuum line going to the brake booster.

Step 2: Open the bottle of Seafoam (the fluid, not the aerosol spray kind) and put the end of the PCV hose into the can, while keeping the can as upright as possible at first. You'll need 2 people, one to hold the can, one inside the car.

Step 3: Start the motor for about 12 seconds. This will suck all the contents out of the bottle into the motor. The can-holder should signal to the person in the car to turn-off the motor as soon as the can is empty. The faster you turn it off, the better. You'll notice that the motor will nearly die when it sucks in the Seafoam, this is normal. Seriously, it'll work fine after the process is done.

Step 4: Let the car sit for 30 minutes with the engine off.

Step 5: MAKE SURE YOU ARE IN A VEEERY WELL VENTILATED AREA. This will cause quite a smoke-show. Start the motor, let it idle for about 30 seconds. The engine will be sluggish and want to die, but will usually stay running. After 30 seconds or so, raise the RPM to about 2800 and hold it there until you feel the motor start to rev more freely (usually about 20-40 seconds). This step makes lots of smoke. That is all the dissolved carbon blowing out.

Step 6: Take the car out for a spin. Go WOT as soon as possible. This should clear the remaining contaminates.

Step 7: Drive the car around at different speeds and RPM's until it feels like the car is running like normal. After 10-15 of driving, you should notice a large increase in power, more smoothness in revs, and an all-round better running motor. After 74,000 miles I did this, and it felt like the engine had gained 20 horsepower, even though it was probably just underpowered with carbon before.

A can of Seafoam is about $4-5 and the can looks old-school. It has ornate style writing and kinda resembles an old shaving-cream can. Ask the store people, they'll know. It should be by the injector cleaners, etc.

Try it. You won't be dissapointed.

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07 Subaru Legacy 2.5i- DD
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08 Kawasaki ZZR600- some mods

06-17-2007, 09:19 AM

1BadAzzGT

Say no to keyboard racers

Join Date: Oct 2000

Location: Pasadena, Maryland

Posts: 576

Quote:

Originally Posted by blackfang

Kyle posted this and I was Skeptical at first, but damn it works!!

Boats have been using seaform for years and it works. I use it every year in my boat it cleans up everything LOL.

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'99 Cobra 10 sec street car

Blown 98 GT: 11.2@131 SOLD!

06-17-2007, 11:17 AM	#3
SilverSpy0 We'll do it LIVE! Join Date: Mar 2006 Location: Rochester, NY Posts: 2,217	Seafoam Cool shyt, however it works. Def. improved my throttle response on my GT last year. Maybe I'll try another can of it soon. __________________

06-17-2007, 02:12 PM

blackfang

Slow as sh!t

Join Date: Feb 2002

Location: Richmond VA

Posts: 9,653

Quote:

Originally Posted by 1BadAzzGT

Boats have been using seaform for years and it works. I use it every year in my boat it cleans up everything LOL.

I meant using the entire can all at once when it says not to on the can

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MWMSC#15

SVT4U2TRY.com | Photos
07 Subaru Legacy 2.5i- DD
98 Z/28 A4 Hardtop- Lid, catback, cutout, suspension goodies 300rwhp 308 rwtq...more coming
08 Kawasaki ZZR600- some mods

06-18-2007, 08:01 AM	#5
03RedFireGT Registered User Join Date: Jan 2004 Location: Corn Fields of Central Illinois Posts: 3,868	1/3 of the can through the intake for me. Then 1/3 in the oil right before an oil change, and the last third in the gas tank. __________________ 32 Valve swap coming soon BDRA #109

06-18-2007, 04:31 PM	#6
bitemark46 Registered User Join Date: Jun 2001 Location: tampa Posts: 974	Ya know I tried seafoam on my car. Smoke a little bit during start up but that's it. Once I pulled the intake to put the shortrunner on the secondaries were still cover in gunk/oil. So I cleaned them with a wet vac, carb cleaner and a tooth brush. Big difference. This IMO is the best way to clean the valves. -Mark __________________ 98'red cobra(N/A) 11.79@114.64 (1.62 60ft )


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