What you will see in a die-penatrent of a full blown crack is a solid line,
as obossed to the corrision pitting seen in this case. It will be very obvious.
Doug MountjoysvPegasusLF38 #4just west of Ballard, WA.
------ Original message------From: S Thomas via CnC-List Date: Tue, Jul 12,
2016 22:45To: cnc-list@cnc-list.com;Cc: S Thomas;Subject:Re: Stus-List Forestay
Stem Fitting / Chainplate - Update
P { MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px}I would like to know how to tell
the difference between this, if it is not a problem, and the dreaded crevice
crack corrosion that we are so constantly being warned about. Steve
ThomasC&C27 MKIIIPort Stanley, ON ----- Original Message ----- From:
Aaron Rouhi via CnC-List To: cnc-list@cnc-list.com Cc: Aaron Rouhi
Sent: Tuesday, July 12, 2016 19:38 Subject: Stus-List Forestay Stem Fitting
/ Chainplate - Update
So I polished the rusty area on my forestay fitting and it seems like a
surface corrosion as suggested. There are some blemishes but nothing like how
it looked before:
http://i.imgur.com/NoW6PtN.jpg
I also performed a dye test. Here is a picture with dye applied:
http://i.imgur.com/RUH6Iir.jpg
Here is after developer is applied:
http://i.imgur.com/34PUsvH.jpg
I barely see a dotted line but it seems to be consistent with the
blemishes on the surface...
Any thoughts?
Cheers, Aaron R. Admiral Maggie, 1979 C&C 30 MK1 #540 Annapolis, MD
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