DIY: Toyota Dealer Style Top End Clean with Seafoam

[BamaDrewski]

A few years ago when I bought my rig and before I started on any of the T4R forums, I had the dealership do what they call the “top end clean”. I remembered how they did it and duplicated it. It works like a champ and it seems to be better than pouring the Seafoam in the PCV vacuum tube.

 

[tystaco]

Is this different than using the Seafoam can that comes with the adapter to be applied through the throttle body?

 

[ajordan1975]

does it suck the sea foam out on it's own?

 

[BamaDrewski]

does it suck the sea foam out on it's own?

I will try and answer both questions at the same time. This is not the same as going through the throttle body with seafoam. It actually goes past or behind the throttle body directly into the top end of the engine.

The seafoam is pulled in on its own, but you have to slow the stream down. At least I had to because the hose I was using was about one quarter of an inch, and it was pulling it in too fast. That's why you see the small pair of vice grips. I was able to slow the flow down, and it worked like a champ. Much more smoke than you get my spraying in through the throttle body, or through the p CV valve.

By slowing the feed of the Sea Foam, I was able to meter it into the top end. While running the truck at about 2200 RPMs, it slowly sucked the seafoam into the top end of the engine. The whole process ran for about 8 minutes straight. For every one of those eight minutes, there was plenty of smoke.

 

[tvpierce]

Do you have a sludge problem in your crankcase?

 

[BamaDrewski]

Do you have a sludge problem in your crankcase?

No sludge at all. Clean as a whistle. Why?

 

[nat103]

Just ran out and did this. Hope I don't end up with a clogged cat

 

[BamaDrewski]

Just ran out and did this. Hope I don't end up with a clogged cat

How did it turn out? Any issues? Not sure why the cat would clog up. If it does, take it to the vet. (LOL) JUST BEING A SMART A$$.

Seriously, let us know your feedback...

 

[nat103]

Went fine. I've done it on a few other vehicles before. I'm not sure if it did anything but it sure is fun to see all that smoke :happy:

 

[19963.4lsr5]

GM makes a Upper Engine cleaner in a spray can that foams as soon as you hit the spray nozzle. It's suppose to dissolve carbon etc. I've used it on my oil burning Saturn twice. Big smoke cloud.


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[gamefreakgc]

GM makes a Upper Engine cleaner in a spray can that foams as soon as you hit the spray nozzle. It's suppose to dissolve carbon etc. I've used it on my oil burning Saturn twice. Big smoke cloud.


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AMSOIL has a similar product, they call it "Power Foam". Hard to find though.

I did in on my sludgey 3.0L but didn't notice anything special. I had already used seafoam though.

 

[19963.4lsr5]

My Saturn had Cold carbon knock on startup that went away when warn. But boy did it sound like a Rod was going to spit out of the block. It made the cold knock go away. But pulling the head for a head gasket 20,000 miles later........there is no way any chemical but a nasty Carb Tip will dissolve that carbon.


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[midcoma]

I recently had the top end clean performed at Toyota also, but they did it a bit differently. They used an induction delivery tool to deliver the cleaning agent. I've been using seafoam for years, but this tool had me so impressed that I had to buy one. They aren't easy to find, but I purchased one form here:

QMI Products - Edwards Engines

It's the tool on the far right. It very slowly sucks the cleaning agent into the top end and "atomizes" it by mixing I with air as it gets sucked in. If you think 8 minutes is a long time, this tool takes about 40 minutes for a 16 oz can of seafoam with the engine at 1500 rpm. Very little smoke while product is being sucked in, but same smoke effect after it soaks and you drive aggressively to blow it all out.

I wish the drip vial on the tool was more rigid, but other than that it's awesome.

 

[tvpierce]

No sludge at all. Clean as a whistle. Why?

Just wondering why the procedure was necessary.

 

[nat103]

I recently had the top end clean performed at Toyota also, but they did it a bit differently. They used an induction delivery tool to deliver the cleaning agent. I've been using seafoam for years, but this tool had me so impressed that I had to buy one. They aren't easy to find, but I purchased one form here:

QMI Products - Edwards Engines

It's the tool on the far right. It very slowly sucks the cleaning agent into the top end and "atomizes" it by mixing I with air as it gets sucked in. If you think 8 minutes is a long time, this tool takes about 40 minutes for a 16 oz can of seafoam with the engine at 1500 rpm. Very little smoke while product is being sucked in, but same smoke effect after it soaks and you drive aggressively to blow it all out.

I wish the drip vial on the tool was more rigid, but other than that it's awesome.

Hmmmmm...

I wonder if this same effect could be accomplished with IV tubing?

 

[jgue467]

Hmmmmm...

I wonder if this same effect could be accomplished with IV tubing?

Or maybe just put it into the gasoline to let the whole fuel system and upper engine clean out? Then add some to the oil for the lower engine. It's what the can says to do.....Luck all. :cowboy:

 

[midcoma]

I wonder if this same effect could be accomplished with IV tubing?

I actually have an IV tube sitting on my table because I was wondering the same thing. I'm considering switching the drip vial out because the IV one seems slightly more rigid. But the tube diameter for the IV is much smaller than the purchased tool.



Putting the Seafoam into the gas only cleans from the injectors down. It doesn't clean any oil recirculated into the intake from the PCV system. Inserting the Seafoam through a vacuum line will clean the whole intake from the throttle body down.

 

[19963.4lsr5]

When I do stuff like that I shove a pilot jet for a motorcycle into the line to restrict the flow. And if it needs to foam up a bit I put a small hole in the tube after the jet to suck air


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