Oil Filler Cap for C Aluminum Valve Cover

["Feldman, Jack" <jack@ihcmail.ih.lucent.com>]

Bob,

I don't know if this will help, but the one on my C seems to be
interchangeable with a B. The MG Owners Club sell a "rocker box cover"
for a C with the cap being purchased as an extra part. Also, a friend
who had the same problem said he found that a Triumph cap would fit. 

Jack