Quote:
Originally Posted by Piotrsko
I can see ring/land gaps being reduced enough that blowby becomes very reduced, perhaps as little blowby as a new bore. However blowby is not an indication of overall motor condition, it is an indication of seal efficiency.
I can see piston diameter being increased enough to not slap the skirt against the sidewall of the bore. I don't see the piston top increasing diameter mostly because you cant get the additive up in that spot. I don't see boron plating the cylinder walls, or if it did, not abrading from ring scraping immediately thereafter. Been my experiences you want to bake a newly plated surface to increase hardness.
Therefore, plating effect equaling a new engine is conjecture until tear down and measurement verification
|
Yes; it's interesting that the downward strokes of a piston are far more lubricated, but in the wrong direction to get lube up to the top of the cylinder wall well and/or quickly.
There is a lot of research on dissolving BA in alcohols (Acetone and/or Methanol etc(water soluble)) forming esters. That goes back to BA during combustion IIRC. (Do check)
This is added to various fuels in a lot of research.
IIRC a 6% increase in economy is claimed in 1 paper.
Ah:
https://www.sciencedirect.com/scienc...43164817302545
Some people who've done it etc:
https://www.team-bhp.com/forum/techn...id-petrol.html
That may be a good way to get to the top of the piston and top ring, but I haven't tested that.
Closest I got was a half teaspoon of very fine powder added to my car's fuel tank.
I figured it could just lie at the bottom and react with any moisture that might get into the tank and a tiny bit might get into the fuel that way. (water is very-very slightly soluble in Petrol)
I noticed no difference in that (my) car.
(A Mazda 626 IIRC 2L something or other, with the sought after unturbo'd Tredia turbo mill in it. This one IIRC)
It was going like a bat out of hell on the initially done oil treatment already. That didn't change.
The ceramic layer that is the initial layer of the layer so to speak must have formed IMHO, but I cant sign my name to that.
NB that any Boric Oxide scraped off for eg a sleeve turns back into BA...
I was made an offer I couldn't refuse some years later by a turbo nut in Durban and sold it sadly.