[Vwdiesel] about to re-ring, scuff question
Nate Wall
nwall at opei.org
Fri Oct 25 10:32:53 EDT 2002
<<<Put the rings in DRY! No oil on
the rings or groves other than what they scrape off.>>
Why is this? For proper break-in? The Total Seal instructions say this too. I
really oiled the rings, pistots, and bores when I re-ringed.
--Nate
LBaird119 at aol.com wrote:
> > I was thinking of using an oil-soaked Scotch-Brite pad
> > to rough up the walls a bit. With care, I could avoid having any crap
> > drip into the engine... I hope. What do you think?
>
> I think you're nuts! ;-)
> The proper "solvent" you're supposed to use after honing is soap and
> water. Theoretically petroleum based solvents will allow the small metal
> bits to work further into the pores rather than wash them out. They come
> out later causing wear. I've had good luck with this method.
> The nice thing about a Rabbit/Jetta re-ring is you don't have to pull the
> engine. :) You just pull the head, pan and pistons. You really need to
> scrape all the carbon out of the ring groves or you could end up breaking
> the rings when trying to install the pistons. I've found that a grove
> scraper
> is well worth having. It sure saves slicing your thumb and finger up on the
> sharp edge of an old ring while scraping.
> I use a 3 stone hone. It lets you round out and straighten out the walls
> a little if need be. Also shows you how bad the cylinder is or isn't. It's
> just a cheapie, so to speak from Sears or the local auto parts store. It's
> the right grit too. A scotch brite wouldn't even get close.
> I use as little oil as I can and place a couple of these blue shop paper
> towels at the bottom of the cylinder I'm honing. Remember, you only
> have to hone as far as the rings go. Not all the way to the bottom. :)
> When done honing, wipe down the cylinder walls. When done with
> all of them get the soapy water and NOW it's time for the scotch brite!
> Scrub it all clean, rinse well. Tada, no solvents to worry about, it's clean
> and you rinse any residual oil and metal away. :) If it's not going right
> back together, lightly wipe some oil on the cylinder walls and when
> assembling you can oil the skirts. Put the rings in DRY! No oil on
> the rings or groves other than what they scrape off.
> Loren
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