m8kinulook
Cadet
- Joined
- May 7, 2007
- Messages
- 13
have a 00 stingray with 5.0 merc. efi 240hp with alpha 1. just picked boat up a week ago and ran it with muffs for 10 mins with no problems. well this weekend took it to the lake backed it off the trailer and started to head out when i noticed it started knocked when i tried to throttle it . then alarm went off and noticed no oil pressure. **** it off checked everything. restarted it and at idle its fine but no oil pressure so i tried once again to throttle it noticed it tried to jump up to 20psi but just didnt have any power and started knocking again so i brought it back to idle and loaded it up. now its time to figure out whats wrong. recently serviced at dealership so oil and filters are fine i so no leaks . my guess is oil pump or pick up tube. any thoughts?