CalG wrote:Just what "benefit" does having a clean engine inside really provide?
I've seen some manky heads and cam drive boxes, but the engine seemed to run just fine.
As far as cleaner induced by mixing with the fuel or sucked in through a vacuum port...I can't see any real improvements. Water works pretty well to dislodge carbon from a piston crown.
Keeping the fuel delivery system clean is a good thing to be sure!
I think it's pretty much common knowledge that engines (in fact most any machine in general) function and or work better and more efficiently when they are clean.
That being said I've worked with engines in some manner for the past 15 years to make a living. Tinkered and did my best to repair my own shitt for many years before that.. In all the engines I've had apart on my bench I can say for certain that CARBON deposits do for sure have the ability to make and engine function much less efficiently at best and destroy it at worst.
Carbon or other deposits can build up on top of the piston and valves thus changing the combustion chamber for one thing. Another potential issue is if these deposits go unchecked they can mess up the valves ability to seat properly. No valve seat, no compression, no vroom vroom as that cylinder will drop. I can't tell you how many valves I've cleaned and or replaced because they were being held open by trash. I've also seen numerous "Broken" valves from pcs of carbon that broke off..
I've seen this in both 2 and 4 stroke engines so both are susceptible to this. Also cleaned many piston tops that were covered in old nasty crap..
I can also see the value of a clean engine in that it keeps the oil return holes clean and clear allowing the correct lubrication, oil return, & oil pressure.
Yup, I've heard that water will dislodge stuff but I aint puttin water in my engine except for the cooling system. Petroleum products will compress and burn, water won't.. I'm sure you don't mean using a fire hose but I'm not using that method on any of my stuff or the hundreds of engines I repair daily..
While I have no scientific proof I wonder "IF" this SEAFOAM (and other additives) allow the deposits to be 'cleaned and burned" rather then "dislodged" and sent through the engine? Maybe I'll call SEAFOAM or shoot them an E-mail just fer shitts and grins?
We do have a product at the shop that is used for "decarbonizing" a combustion chamber.. When the chamber is filled (Piston @ TCD Comp stroke) and allowed to soak overnight this stuff is supposed to eat/dissolve these deposits not just make them fall off.
YES we can surely agree on a CLEAN fuel system being a GOOD thing.. I just think of the "system" extending into the valve train and combustion chamber..