decarb with seafoam

Sunbeam2 · #1 01-16-2005, 11:00 AM

I decarbed my Motor with Seafoam last friday prior to a trip. Followed the instructions on the can except I used half a can instead of 1/3 per the intructions. I let it sit for 10 min and then restarted it. I Smoked the whole neighborhood for 10 min or so.
The engine ran real smooth and quiet on the trip.

glass · #2 01-16-2005, 11:40 PM

agree a decarb is ok , but on a high milage engine , it can cause the glue that holds it togeather to be removed and it s looser than a goose , ready for OH ??

mx52nv · #3 01-18-2005, 12:31 PM

hey, can you give us a better writeup?? I'm curious about doing this myself. I have 107,xxx miles on my 96.

Sunbeam2 · #4 01-18-2005, 03:04 PM

1. First buy a can of Seafoam
2. Drive the car until is completly warmed up
3. Open hood and remove the intake duct bolted over the throttle body.
4. Start engine and slowly pour seafoam equally into both barrels of the throttle body until you have poured in about 1/2 the can. The trick here is to pour the last ammount fast enought to kill the engine, if not just hop inside and shut it off.
5. Wait ten to fifteen minutes, the instructions on the can say 5 min. Ignore that and go for 10 to 15.
6. Start engine, prepare yourself for a lot of white smoke. I mean a lot of smoke, this is a combination of seafoam and all the carbon it has just disolved. after a few min rev it up to 1500-2000 or so RPM to clear it all out.
7. You are done, reconnect the duct to the throttle body.
8. Car will now run smoother, and seem to have a bit more get up and go because the rings are looser and will seat better once again giving better compression and better mileage.
9. If you really want to see something, do a compression check of a few cylinders before you start and then do it again after you are done. You will be surprised unless your engine has 300,000 miles and is beyond help.

hulkmn069 · #5 01-18-2005, 03:28 PM

what is this seafoam and how where do you get it ... thanks

mikec041 · #6 01-18-2005, 05:06 PM

Quote:

Originally Posted by hulkmn069

what is this seafoam and how where do you get it ... thanks

It's a solvent you buy in a pint can at auto parts store.
Some people rave of it others warn against it.
It smells like gumout

Instructions on can says you can also pour it into the master cylinder vaccum port on engine.

mikec041 · #7 01-18-2005, 05:08 PM

Quote:

Originally Posted by Sunbeam2

I decarbed my Motor with Seafoam last friday prior to a trip. Followed the instructions on the can except I used half a can instead of 1/3 per the intructions. I let it sit for 10 min and then restarted it. I Smoked the whole neighborhood for 10 min or so.
The engine ran real smooth and quiet on the trip.

I wonder if the seafoam helped with your engine power problem or was it the other work you did?

Sunbeam2 · #8 01-19-2005, 07:50 AM

Lets say it was a combination of all the stuff I did. Seafoam was just the icing on the cake, We just decarbed my wifes 93 Sentra with it and now she says it runs much smoother and stronger.

Goldfishy · #9 01-19-2005, 10:33 AM

So this stuff dissolves the built-up carbon deposits, my concern are if any larger pieces don't fully dissolve and gets blown into the cat conv. or muffler, would it not create a potential fire hazard?

It seems this stuff has been around so maybe there's been no problems with that.

If I do it, it will be done on a early morning weekend or late in the evenings so that the neighbors won't think I blew the engine, lol.

Myrtle Beach · #10 01-20-2005, 10:47 AM

Quote:

Originally Posted by glass

agree a decarb is ok , but on a high milage engine , it can cause the glue that holds it togeather to be removed and it s looser than a goose , ready for OH ??

remove what glue? Can you please clarify- I've got 118,000 on my Jeep.

dksob81 · #11 01-20-2005, 12:13 PM

After reading your first post aout the SeaFoam I searched for it and decided I need to run this through my engine, I did a compression check about a month ago and found out that my heads are badly carbed up (compression: 20-30 psi higher then should be) and I have been searching for a decarber ever since then to decarb the combustion chamber and I didn't find anything to decarb it with that didn't involve removing the heads, until now.

dksob81 · #12 01-23-2005, 02:04 PM

SEAFOAM update: used on Friday January, 21, 2005

I used the SeaFoam in my 94 ZJ (5.2L).

Today (Sunday Jan 23) I decided to do a compression check (I only checked #1 Cylinder) to see how good that stuff works , I did this about a months or so ago and I was between 170 -180 PSI on each Cylinder (should run between 120-150 PSI) so I knew I had carbon buildup and I searched for a way to decard the engine without removing the head- then Sun posted this thread about the SeaFoam so I read up on it and decided to get some,well the compression check results:
#1 Cylinder - 155 PSI...... WOW!

I really wasn't expecting much change in the compression when I checked it, but I was very surprised. I recommend to anyone who has carbon build-up to get some SeaFoam - IT WORKS!

Goldfishy · #13 01-23-2005, 03:56 PM

Quote:

Originally Posted by dksob81

SEAFOAM update: used on Friday January, 21, 2005

I used the SeaFoam in my 94 ZJ (5.2L).

Today (Sunday Jan 23) I decided to do a compression check (I only checked #1 Cylinder) to see how good that stuff works , I did this about a months or so ago and I was between 170 -180 PSI on each Cylinder (should run between 120-150 PSI) so I knew I had carbon buildup and I searched for a way to decard the engine without removing the head- then Sun posted this thread about the SeaFoam so I read up on it and decided to get some,well the compression check results:
#1 Cylinder - 155 PSI...... WOW!

I really wasn't expecting much change in the compression when I checked it, but I was very surprised. I recommend to anyone who has carbon build-up to get some SeaFoam - IT WORKS!

Okay, you don't have any stock interest or investment in the company, right?? J/K....on my next trip to the auto supply store, I'm going to make my 99' GCL with almost 140K mi. to drink that juice.

Thanks for the testing and experiment.

mx52nv · #14 01-23-2005, 07:00 PM

how do you tell if you have carbon buildup?

dksob81 · #15 01-24-2005, 02:43 AM

gold - lol....No I don't have any STOCK interest or any royalties coming from this.

Mx - high compression (5.2/5.9L and 4.0L - should be between 120-150 PSI, 4.7L V* - should be between 140-180 PSI.) Like I mentioned mine was between 170-180 on each cylinder. and after using the Sea Foam it brought it down to 155 PSI, still a lil high but acceptable and another cleaning with this stuff should bring me right in spec (SeaFoam recommends every 2000-5000 miles- So I think I will wait a bit before using it again)

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