Sea Foam

[Mango]

Does anyone here use Sea Foam in their fuel on a High Milage 350 TBI ?

I found the post on sea foam, not going down that road

 

[gmbellew]

Does anyone here use Sea Foam in their fuel on a High Milage 350 TBI ?

I found the post on sea foam, not going down that road

I've been trying to clean the carbon out of my 350 TBI engine, because i think it is the cause of a random miss at idle and occassional missing under light load.

I've been doing a pretty steady diet of Redline SI-1 in a maintenance dose for the last few months and used AC Delco top end engine cleaner before my last oil change. I plan to keep at the Redline until the next oil change and also use the AC Delco top end engine cleaner before I change the oil next time and evaluate where things are after that. I have also been using seafoam in the crank case for 300miles before oil changes for the last couple oil changes to help clean up any sludge in the engine.

 

[RecklessWOT]

I use seafoam in everything I own. I have had a few 350TBIs over the years, and I used it in them too. Good stuff

 

[chevytech87]

I’ve seen the delco top engine cleaner do incredible things on many engines, especially the new direct injected stuff. I run the Lucas fuel injector stuff in all of my vehicles, never had problems seems to do it’s job. I’ve only seen sea foam cause problems in small engines when I used to repair those, and usually it comes down to operator error. Often times people put wayyyyy too much in a system, which I’m sure you can do with any of these products. But overall it seems to be a preference thing.

 

[RecklessWOT]

I’ve seen the delco top engine cleaner do incredible things on many engines, especially the new direct injected stuff. I run the Lucas fuel injector stuff in all of my vehicles, never had problems seems to do it’s job. I’ve only seen sea foam cause problems in small engines when I used to repair those, and usually it comes down to operator error. Often times people put wayyyyy too much in a system, which I’m sure you can do with any of these products. But overall it seems to be a preference thing.

Even when I run WAYYY too heavy of a mixture (we're talking like half a can in the gas tank of an 8hp briggs and stratton), the thing bogs down and chugs, but then runs GREAT afterwards, cleans it right out. I've never seen any damage done from the stuff, not even sure how it could damage anything?

 

[Camar068]

I put 2 caps of it in my early 2000's weed eater (about 20 yrs old). It wouldn't crank before or wouldn't stay running. After the sea foam, I thought it was literally going to blow up it was so responsive. I proceeded to whack the weeds as fast as I could lol.

Sea foam....love it.

 

[DoubleDingo]

I've never used sea foam, but I used Motor-Purr all the time. Unfortunately Motor-Purr is hard to find. I am lucky and my auto parts store carries it.

 

[Shorty81]

I use Star Tron. It work great for water separation in that junk ethanol that our government shoved down our throats.

 

[bft305]

I use B-12 chemtool it is great stuff and works awesome! Plus it is cheaper than sea foam

 

[Catbox]

I am running Sea Foam High Mileage right now in my TBI Suburban.
It has been idling wicked rough during the warmup cycle for about 45 seconds then is smooths right out.

After Sea Foam it tends to clean up quite well.

This time though, I have ordered a set of new AC Delco sensors for the thing.
It has 250k on the clock, so they should help it continue to be happy.

 

[Mango]

@Catbox, Sweet What Sensors are you Replacing
I have 189,000 and runs pretty good like to keep it that way
Going to pull teh plugs and check them out only about 10,000 miles on the new ones

 

[85K304SPD]

Sea foam is kinda' like Franks hot sauce... Use that Sh** in everything.

 

[Catbox]

@Catbox, Sweet What Sensors are you Replacing
I have 189,000 and runs pretty good like to keep it that way
Going to pull teh plugs and check them out only about 10,000 miles on the new ones

It throws a MAP sensor code.
We in haste, replaced it with a house brand sensor and it got worse.
I have ordered AC Delco brand sensors for it and that should in theory stop that issue.
I figured changing the other ones would be good for it in general as well.

Here are the pieces that are on the way to me:

Manifold Pressure (MAP) Sensor

ACDELCO 2133205 (Daily Driver) Professional Info

EGR Valve Control Solenoid / Motor

STANDARD MOTOR PRODUCTS VS12T T-Series Info

Throttle Position Sensor (TPS)

ACDELCO 19322821 (Daily Driver) Gold Info

Like with always though, I am not throwing the OG parts away.
They will be place into the boxes the new parts come in and put into the back of the burb.

 

[1976dully]

Use the stuff in everything we have. Dumped some in our '48 Farmall Cub after we did an extensive cosmetic restoration. Crap flew out of the stack like you wouldn't believe!

 

[SirRobyn0]

Does anyone here use Sea Foam in their fuel on a High Milage 350 TBI ?

I found the post on sea foam, not going down that road

I've used it yes, but it's not my favorite product. If your looking for a product to apply directly to the carburetor I like ACDelco X-66A The ultimate in direct decarbonization is X-66A followed by 8oz of water slowly drizzled into the carburetor at 1,500RPM. If your looking for a pour into the fuel tank, I've done seafoam, but I certainly don't swear by it.