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Is this transmission whine or something else?

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=51715
Printed Date: November-24-2024 at 10:08pm


Topic: Is this transmission whine or something else?
Posted By: BrendellaNewb
Subject: Is this transmission whine or something else?
Date Posted: July-30-2024 at 4:21pm
Video attached! 

I have been reading about a transmission whine in the '89 PCM 351. Putting mine away last year and it started this whine and I'm curious if this is what people are referring to? Is this something that isn't going to cause problems or is this something else that I need to dive deeper into?

http://youtube.com/shorts/4M1i4DfjTPo?feature=share" rel="nofollow - http://youtube.com/shorts/4M1i4DfjTPo?feature=share


Replies:
Posted By: TRBenj
Date Posted: July-30-2024 at 5:34pm
That is a 40i (1:1) and not a 40a (1.23:1). The characteristic whine occurs at speed due to the reduction housing gears (which yours doesn’t have)… it does not sound like that.

Was it being run dry? Dirty neutral on a dry rubber cutlass might cause that groan?

Posted By: BrendellaNewb
Date Posted: July-30-2024 at 7:03pm
@TRBenji - thank you! I clearly don't know a lot about this boat other than it's freakin fun to ski behind. 

It was dipped in the water during this video so it wasn't being run dry. 


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