Longtime MVS Forums member Geevs asks about Amsoil's Power Foam intake & combustion cleaner, and gets many good responses and alternatives.
Longtime MVS Forums member Geevs asks about Amsoil’s Power Foam intake & combustion cleaner, and gets many good responses and alternatives. MVS Contributor kcodyjr…
Sucking something in through the manifold causes the engine to stall, and the chemical sits on the pistons and rings. You let it sit, then start it up to burn it off. It wouldn’t be in contact with the valve mating surfaces until it’s itself become an exhaust product.
Cleaning an engine with Seafoam, and the Amsoil sounds similar, is a good idea according to some and useless according to others, and some cite a risk of hydrostatic lock-up. Personally, I’m a believer. But, it’s not going to do much for exhaust valves, unless you do it with the car suspended upside-down.
Here are links to a couple recent topics that will help save you money:
25% off Harbor Freight products — it’s only good for Easter Sunday — but it works in stores, on the phone, and on their Web site. The fine print. This could save you a buch if you’ve been waiting on a big HF purchase. (Tip o’ the hat to Matty Moo.)
If you’ve looked at my How to Use Seafoam tutorial, you’ve probably noticed that the subject car is my 1997 850 that has a convenient vacuum tree, useful for sucking the Seafoam into the intake (or easily adding a boost gauge). But 2001+ Volvos don’t have this, so what do you do? Velorider shows us how to use the brake boost vacuum line to pull Seafoam into your S60, V70, C70 or XC70’s intake.
The “definitive” answer… from Jim Davis at Seafoam. He sent me three technical bulletins as well as confirming in his email that it can be used as a pre-cleaner before an oil change, as well as after-care for fresh oil between oil changes… in a gas engine. I am cutting and pasting the first bulletin so all can see.
Just did a Seafoam treatment on my 94 850 NA. Sucked it through the intake tree into manifold, let sit 15 min., started it back up. Tons of smoke.
Some say that seafoam does not work.
MVS forum member vlv850 shares his seafoam horror story with the hopes of helping other members see the potential risk. vlv850 says – Just did a Seafoam treatment on my 94 850 NA. Sucked it through the intake tree into manifold, let sit 15 min., started it back up. Tons of smoke, and a horrible clicking/knock from the engine. Drove it a few miles, until smoke subsided, but knocking continued.
Heres a video showing the concept of sucking 1/3 to 1/2 a can of Seafoam into the combustion, then putting the rest in the crankcase. Seafoam really helped.
How can seafoam help your volvo engine
Here’s a video showing the concept of sucking 1/3 to 1/2 a can of Seafoaminto the combustion, then putting the rest in the crankcase.
MVS Forum Member waynej says:
Had oil on top of engine and oil blowing out dipstick tube. Changed flame trap, replaced vacuum hose to trap and removed and cleaned vacuum tree. Still had oil coming out of dipstick tube. Did not have time or funds to replace oil separator. Poured about 1/4 can of seafoam down one of the tubes going to oil separator, drove for a week and changed oil. 2 weeks later dipstick tube is still clean and dry.