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Seafoam through brake vacum ??

Upper intake cleaning. It does work,however you need to be careful. Most kits have metered orifice so you don"t get to much to soon , could crack piston or bend rod .
 
It does help clean things out. If you're at high rpm's a lot or work the truck hard, it won't likely do much, but if it's a daily driver, it could really make a difference. While it is possible to hydro-lock/bend rods/crack pistons, you'd have to dump the bottle in there in under 5 seconds for it to be even remotely possible. Each combustion chamber is around 50 cc. To fill a single chamber half up, you'd have to dump the entire bottle in there in 5.2 seconds at 3000rpm. That's not possible, because in 5.2 seconds, every other cylinder is going to get a wiff of it too. I can't say for sure if the brake vacuum hose would work because some engines may be supplying vacuum for the brakes from less than all 8 cylinders. You'd have to look at the vacuum hose routing diagram to know for sure. The engine should be revved to 2000-2500rpm while dumping it in. It will likely labour a bit while ingesting the fluid.
 
Most people don't believe this,and I didn't see it myself,but my son went to auto/diesel college at University of Northwest Ohio. He said he had a teacher in one of his classes who revved a V8 engine up and stuck a garden hose in the intake flowing water at full flow. He said they all hit the deck thinking it would blow all to pieces. He said nothing happened.
 
Makes sense. An engine is nothing more than a piston pump, and it's moving material in and out each cylinder in less than the blink of an eye. When you replace some air with an equal volume of water, nothing should happen.
 
I have a cracked piston with a bent rod that I took out of a Ford van 5.8 engine. Was flushing out the heater core and water got into the intake. Engine hydrolocked and that was the last it ran until I replaced the bent rod and piston.
 
(quoted from post at 20:00:09 11/18/13) Most people don't believe this,and I didn't see it myself,but my son went to auto/diesel college at University of Northwest Ohio. He said he had a teacher in one of his classes who revved a V8 engine up and stuck a garden hose in the intake flowing water at full flow. He said they all hit the deck thinking it would blow all to pieces. He said nothing happened.
Click to expand...
Pouring water down the carb with the engine revved up was an old school way of cleaning the carbon out of an engine.
 
(quoted from post at 14:02:57 11/18/13) Makes sense. An engine is nothing more than a piston pump, and it's moving material in and out each cylinder in less than the blink of an eye. When you replace some air with an equal volume of water, nothing should happen.
Click to expand...

Liquid does not compress like air, so it's not the same thing.
 
You introduce sea foam into the intake of an engine while it's running and you'll have a run-away engine. That's almost like pouring starting fluid in it or holding your acetylene torch over the intake with the acetylene turned on while it's running. Don't do it!!

Sea Foam is combustible like any fuel.

We always fill fuel filters on diesels with sea foam.
 
(quoted from post at 17:02:57 11/18/13) Makes sense. An engine is nothing more than a piston pump, and it's moving material in and out each cylinder in less than the blink of an eye. When you replace some air with an equal volume of water, nothing should happen.
Click to expand...
o compression stroke on a piston pump.
 
(quoted from post at 14:15:34 11/18/13) Upper intake cleaning. It does work,however you need to be careful. Most kits have metered orifice so you don"t get to much to soon , could crack piston or bend rod .
Click to expand...
acuum pickup point almost always in manifold, so it is below/down stream of carb or throttle body, etc. so any benefit must be to clean intake valves, if of any value at all. I'm keeping my money!
 
Water injection is nothing new. They used it in aircraft engines in WW II. Look at the souped up diesels for tractor pulling. They use water injection however too much can have ill effects. I saw the pictures of the IH that blew up. The pistons and cylinders were perfectly clean yet the exhaust coming out is thick, thick black smoke like a steam locomotive!
 

It does work it may not fix his issue what ever it may be but I have seen it take care of carboned up valves issues on FI engines when all else fails...

Its not the way I would do it but have done it that way before I brought the tools to spray/meter it in the throttle body...

Google "mopar top engine cleaner" its a nutter way to clean the top end when the proper tools are not handy...
 
a gas engine will not run away like a diesel it will just smoke a lot and lose rpm and coat the valves real good. same as winterizing a boat or snowmobile engine with oil.
 
watched a guy at a car wash do that to his 396 SS chevelle ,,.reved the motor about half and stuck the soap water right into the 4 barrel carb and floored it ,, water shooting out the dual exhaust across the parking lot .... didn't hurt athing ,,, not sure what he was trying to cure ,, or if it worked,,.as for seafoam .. simply pour it in the tank,,..it will cure things as it runs ,,,I will never put it in a engine oil as the can suggests ,.. kilt a gunked up rattley celebrity v -sick that had 150 k on it ...spun a rod bearing ,,.gm junk was probably about to do that anyway ,,. seafoam cleans fast ,, too fast for the gunky oil in engines ,,, I use type f fluid ,..
 
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