Strange high pitch whine...500Efi ???
08-11-2002, 10:03 PM
#1
Registered
Thread Starter
Strange high pitch whine...500Efi ???
great day boating but.....
Strange High pitch whine (sounds like an alarm buzzer just not as constant, still it's very piercing) out of port engine 500 efi (50 hrs). No power loss all fluids ok- runs 110mph easily with no problems. Here's the weird thing.... Goes away in reverse and idle forward. Neutral starts again. bring it up on plane starts again. When I turn the engine off it takes a second and a half to die out. Brand new drives so no issues with equipment. plus it's coming frome somwhere around the engine. It's so high pitch your ears won't let you isolate it.
Any Ideas?
Last week I sucked a little grass up but no big deal. flushed oil coolers with no hiccups.
Thanks for your help.
Maximus
Strange High pitch whine (sounds like an alarm buzzer just not as constant, still it's very piercing) out of port engine 500 efi (50 hrs). No power loss all fluids ok- runs 110mph easily with no problems. Here's the weird thing.... Goes away in reverse and idle forward. Neutral starts again. bring it up on plane starts again. When I turn the engine off it takes a second and a half to die out. Brand new drives so no issues with equipment. plus it's coming frome somwhere around the engine. It's so high pitch your ears won't let you isolate it.
Any Ideas?
Last week I sucked a little grass up but no big deal. flushed oil coolers with no hiccups.
Thanks for your help.
Maximus
VIP Member
08-11-2002, 10:46 PM
#6
Banned
Join Date: Sep 2001
Location: Deland, Florida
Posts: 25,191
Likes: 0
Received 0 Likes
on
0 Posts
It means it's about to puke and you should trade it even with me for a SBC.
Seriously, my first supect in all high pitch whines is a vacumn leak, but it wouldn't go away by changing gears.
Seriously, my first supect in all high pitch whines is a vacumn leak, but it wouldn't go away by changing gears.
08-11-2002, 10:52 PM
#7
Registered
Join Date: Mar 2001
Location: Rosedale,MD
Posts: 891
Likes: 0
Received 0 Likes
on
0 Posts
I had a 96 Scarab with t/500 HP's and had a similar high pitch
whine. I do not recall if it was a pulley for the belts out of a line or a bad belt. Look at the belts and alinement or a belt too tight.
One or the other fixed our problem.
Doug
whine. I do not recall if it was a pulley for the belts out of a line or a bad belt. Look at the belts and alinement or a belt too tight.
One or the other fixed our problem.
Doug
Platinum Member
08-11-2002, 11:19 PM
#10
The Illustrious One
Charter Member
Join Date: Oct 2000
Location: Internationally Famous
Posts: 3,277
Likes: 0
Received 2 Likes
on
2 Posts
If it has XR Bravo's and not XZ Bravo's it's the drive due to the way the gear is a straight cut in the XR vs. a bevel or angle cut gear in the XZ or Bravo 1.
I remember it in the 38 Cig thought I was going to launch all the engine guts out of the top of the engine hatch.
I remember it in the 38 Cig thought I was going to launch all the engine guts out of the top of the engine hatch.
__________________
Dying,....Is the day worth living for!!!!!!
Dying,....Is the day worth living for!!!!!!
Last edited by sean stinson; 08-11-2002 at 11:22 PM.
