transmission whine
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=47349
Printed Date: April-27-2024 at 11:02am
Topic: transmission whine
Posted By: tarpon32
Subject: transmission whine
Date Posted: April-12-2019 at 5:39pm
|
1990 Nautique 351 PCM transmission 550 hours.. Read all the threads about the whine due single exhaust,. type of oil, maybe adding more soundproofing ect. . The trans has red oil with the placard about 20 weight. Can anything be done to quite the whine under 2500 rpm, would you suggest changing the oil to 20 wt? I can live with the noise with ear plugs, requesting some info from the forum who corrected this problem. Randy ------------- Randy |
Replies:
Posted By: Orlando76
Date Posted: April-12-2019 at 5:58pm
|
Transmission fluid comes in weights? Did I miss something here? The whine 90% probability is coming from the reduction gear. It is what it is. Now back to the fluid..... ------------- Please support The Cystic Fibrosis Foundation 1976 Ski Nautique 351 Escort 1993 Ski Nautique purple and black 351 HO PCM |
Posted By: phatsat67
Date Posted: April-12-2019 at 6:06pm
|
1.23 Transmissions originally called for 20W oil not trans fluid. Dex/Merc is a perfectly fine substitute and I believe factory offering as of late. |
Posted By: SNobsessed
Date Posted: April-12-2019 at 8:14pm
|
The whine is from the straight cut gears. No oil is going to silence it. Nature of the beast. Edit - The PO of my old '89 told me he had the transmission reduction gears replaced, due to noise. The trans shop owner later told me that the gears were badly eroded. As I recall, he thought they were made from powdered metal. ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: 8122pbrainard
Date Posted: April-12-2019 at 8:56pm
The old used car lot trick was to put sawdust in worn whining Trans's and differentials!!  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: SNobsessed
Date Posted: April-12-2019 at 9:33pm
Pete - this is what the (crooked) church lady did to Barney! Just saw that episode a few weeks ago! ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
8122pbrainard wrote: