Gregory Bender

Cylinder head exhaust thread repair

Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models


My bout with loosening exhaust nuts lead to a damaged cylinder head. The loose exhaust nut rattled around and destroyed the aluminum threads in one of my heads. What a bummer, I had just gotten the heads completely reworked!

Fortunately, Gordon and Rick at MG Cycle told me about Competition Cycles in Butler, WI. For USD $75.00 plus return shipping, they repaired my threads. Essentially, they drilled out my old threads, and welded in a new insert. They cut the threads to precisely match your exhaust nut, so be sure to send them the exact nut you plan to use - do not assume that the stock exhaust nuts are precisely the same as the replacement. I am very happy with the appearance of the repair and have had no trouble with it.

Competition Cycles
5081 North 124th Street
Butler, WI. 53007
Phone: (262) 373-1122