reposted from the Tartan 27 Facebook group. From William Talbot. I will be doing mine tomorrow.
Brian
#275
On Saturday, November 17, 2018, 8:04:32 PM CST, rick Gengarelly rickg1952@... [T27Owners] wrote:
?
My bolts were 90% gone but the plates were perfect. As wacky as it sounds, it appears Tartan used carbon bolts and 316 plates. I had the plates tested because of the risk of o2 deprivation but they checked out with the tooling manager. I found that what Tartan does with one they dont necessarelly do with all. Hull #1 they used a bronze insert on the center board construction. After that they used carbon steel like on mine which i rebuilt.?
Many years ago people were posting that the reason that the Stainless bolts corroded is that they were oxygen starved due to being buried in the glass.
I have hull #130 and I took out the plates, knees and all with a right angle grinder, built new knees with teak, reused the same plates and glassed over just like original to the hull and it's fine 15 years later.?
My boat is right near chainplate express. He is the the guy I used to fix the centerboard. But my chainplates are still enclosed in fiber glass. I have been thinking of opening them up. A can of worms perhaps