Cantsitstill
Veteran Member
Anyone know what RPM the Perkins 4.108 should hit under load at WOT? The Perkins manual says 3400 (or 3600 cant recall). The mechanic who just did my survey says 4,000.
Right now it only hits 3,000 underway. I need to get a different pitch but don’t want to go smaller than necessary.
As a side note it is a Krogen Manatee. I called the Krogen headquarters the original specs show 4,000 RPM at WOT with a 22” prop but don’t show the pitch. Anybody with a manatee and the 4.108? Apparently this is the engine they installed with the first few before they switched to the volvo.
Right now it only hits 3,000 underway. I need to get a different pitch but don’t want to go smaller than necessary.
As a side note it is a Krogen Manatee. I called the Krogen headquarters the original specs show 4,000 RPM at WOT with a 22” prop but don’t show the pitch. Anybody with a manatee and the 4.108? Apparently this is the engine they installed with the first few before they switched to the volvo.