10v Motor Eats Alum Shavings for Breakfast... How to prevent it

[JShadzi at aol.com]

Jim, independent of the other applications you've described, I can't imagine anyone bead blasting the inside of an intercooler, there are just way too many places it would get caught.

Realistically, the inside of an IC should never be cleaned with anything but a liquid or solvent, it was my mistake for getting the alum shavings in there the first place, I don't think it would be appropriate to try to flush the alum shavings out of the core with more solid particulates like glass beads, which then wouuld need to be removed somehow.

Javad

>Hi All,
>
>Apparently, I awakened a sleeping dragon when I suggested glass bead
>blasting of parts that have corrosion, carbon buildup, burrs, and the like.
>I improperly assumed that the readers would know that this should be done on
>2 ported items where the debris can be blown away with compressed air.
>Common sense works wonders in these matters.
>
>As for the turbo builders voiding their guarantee if a part isn't bead
>blasted;  I have chapter and verse.  The parts involved are the inlet and
>outlet oil lines to a turbo if one wants to reuse rather than replace the
>oil lines, not the turbo itself.  Of course, one could pay about $200 for
>refurbed oil lines or maybe $25 for bead blasting of the flange and pipes on
>each end.  In a turbo rebuild, bead blasting is used to clean and polish the
>turbo body itself(when it's "empty"; without the impeller and compressor
>vanes, shaft, and bearings).  Talk to some turbo rebuilders, if there any
>left.
>
>Cheers!
>
>Jim Jordan
>
>>  -----Original Message-----
>>  From: John Larson [mailto:j.d.larson at verizon.net]
>>  Sent: Thursday, October 09, 2003 9:03 AM
>>  To: superba at comcast.net; mailto:quattro at audifans.com
>>  Subject: Re:10v Motor Eats Alum Shavings for Breakfast... How to prevent
>>  it
>>
>>
>>  "If you do that again, take it to a machine shop and have it blasted with
>>  beads.  That will clean and sort of polish the interior.  Turbo
>>  rebuilders
>>  insist on having oil hoses bead blasted or their guarantee is void."
>>
>>  What?!!!
>>
>>  Bead blasting of ANY internal engine parts is a SERIOUS no-no.
>>  I've yet to
>>  encounter a machine shop at the professional level that will do it.  Most
>>  other "soft" media are ok, but not sand, and DEFINITELY not glass beads.
>>  Glass, especially, sticks in cracks, crevices, and threads, and
>>  comes out at
>>  the most inopportune times.  I've seen ruined threads, ruined
>>  bearings, and
>>  permanently plugged oil passages.  I can't imagine a turbo rebuilder
>>  requiring such a guaranteed reason for failure.  John
>>
>
>