jdess
07-12-2011, 10:08 PM
I have a 1999 supra comp with a Indmar 315 engine. I started to notice a knocking noise in the rear near the transmission/drive shaft. The noise seems to happen at higher rpm's and after cruising for awhile. It takes about 10 minutes at high rpms and moving and turning. It does not happen at lower rpms or going slow. I'm looking for any ideas on what the problem might be. Any help appreciated.