+- Tiara Yacht Owners Forum (https://www.tiaraownersclub.com/forum)
+-- Forum: Tiara Yachts Discussion Forum (https://www.tiaraownersclub.com/forum/forumdisplay.php?fid=6)
+--- Forum: Gas Engines/Transmissions (https://www.tiaraownersclub.com/forum/forumdisplay.php?fid=26)
+--- Thread: [Tiara Open] Whining noise when accelerating (/showthread.php?tid=6941)
Whining noise when accelerating - waycamp - 07-06-2020
when I accelerate the throttle I get a whining noise which seems to come form the front of the engine. No noise at idle and I dont have to be in gear for noise to start. Not sure what it ca be, Any ideas? Belts are tight.
Whining noise when accelerating - Misdirection - 07-07-2020
It would be helpful to know what boat, motors, and transmissions you have to try and help you out.
Sent from my SM-A505U using Tapatalk
RE: Whining noise when accelerating - reeltimebrad - 07-09-2020
If you have 8.1s there is a very distinct intake whistle that occurs as you come up on plane it's caused by the air flow through the throttle body and can be remedied by installing a thin plate between the throttle body and intake manifold. This plate has a small finger that protrudes into the air stream and slightly changes the air flow which cancels out the whistle. They are available through any crusader dealer.
RE: Whining noise when accelerating - Medicone - 07-09-2020
Check to see if the belts are rubbing against the flame arrestor (also look for belt dust on the hatch).
RE: Whining noise when accelerating - Sans Peur - 07-09-2020
Are they diesels? Turbos whine!
Whining noise when accelerating - Misdirection - 07-09-2020
Profile says they have a 2004 29 Open w/Crusaders.
Sent from my SM-A505U using Tapatalk
RE: Whining noise when accelerating - waycamp - 07-10-2020
Sorry should have given more info. They are crusader 5.7 gas engines. I removed the belt and ran engine for a few seconds and no whine. I think this rules out transmission pump and fuel pumps. Seems to be coming from front of engine, so could be one of the pumps, raw and fresh water. Alternator? I was going to change out tensioner as a start. Has anyone had a whine from the tensioner? Belts were tight. Noise just started last trip.
Thanks all....
RE: Whining noise when accelerating - Sans Peur - 07-11-2020
Feel for any pulleys that may be loose. if there is any play in them there's your culprit. Alternators are known to whine some when the bearings are going bad.
RE: Whining noise when accelerating - waycamp - 07-14-2020
I changed the belt tensioner pulley. Seems to have the done the trick...thanks all
RE: Whining noise when accelerating - CaptBrett - 07-19-2020
sounds like turbos spooling up to me.......