J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Engine Trouble

Josh,

Are these "banjo" type fittings with the copper washer gaskets like on my 2GM? If so, replace the copper washers.

I reread your post. The supply lines are threaded, the recirc lines are banjo fittings. Don't get any teflon tape in the flared section of the supply line, only on the threads. Ideally you should replace the leaking line as this is designed to seal with the flared fittings and is under extreme pressure.