On Tue, 29 Jan 2008, John North wrote:
> I procrastinated too long on engine re-assembly. Now I see the
> beginnings of corrosion in one of the bores. It's more like staining
> than rust at this point. What's the best to do? Will a quick
> polish with 400 or 1000 grit paper do any harm? Can't imagine it
> will take more than .0005 off the bore... Other alternatives?
Wipe them down with some motor oil. That'll lift the loose stuff that's
there and leave a surface that won't rust further.
If the assembly is to take place soon, buy a cylinder hone (or borrow it)
and run it up/down the bores at low speed with an electric drill. Then
wipe with a solvent and then clean with detergent and then assemble. I use
kerosene as a lube when I do the light hone.
You absolutely so not want to remove as much as .0005" from the bore. That
will change the piston skirt to wall dimension and the result will be
piston slap. Piston fitment is very precise.
> John North
rml
---------------------------------------------------------------------------
Bob Lang NER/SCCA | This space for rent
Solo Chair 2008 TR6 40 F Prepared | Triumph!
Voice:781-438-2568 FAX: 617-258-9535 | Cell: 339-927-4489
---------------------------------------------------------------------------
_______________________________________________
Support Team.Net http://www.team.net/donate.html
6pack@autox.team.net
http://autox.team.net/mailman/listinfo/6pack
http://www.team.net/archive
|