Reply
 
Thread Tools Display Modes
 
Old 02-13-2013, 07:17 AM   #41
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,534
In older transmissions weight , and the cost of parts and maching time was less important.

Our ancient Twin Disc has huge wide gears ,do not have the loading of modern gears that are perhaps 1/2 or 1/3 the width.

No oil cooler , no oil pump , splash lubrication is fine for old tech .
\
DA BOOK is the place to look for YOUR info.
__________________
Advertisement

FF is offline   Reply With Quote
Old 02-13-2013, 06:29 PM   #42
Guru
 
BobH's Avatar
 
City: Montgomery, TX
Country: USA
Vessel Model: None, but looking
Join Date: Feb 2012
Posts: 779
Yes, there is a transmission cooler. Just got the word from PRM New Age, "Synthetic or part synthetic oil is not approved. Use a diesel engine mineral oil only."

Bob
__________________

BobH is offline   Reply With Quote
Old 02-13-2013, 06:49 PM   #43
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 13,724
What the heck is "PRM New Age"?

Sounds like Marin's "next generation" talk.

I think they won't recommend synthetic because it's not well defined. Too many base stock types out there to test for approval. They may use synthetic themselves but as I've said before synthetic is only needed under very extreme conditions like very high heat. Racing motorcycles need synthetic lube. Trawlers certainly don't. Nor do street cars.
__________________
Eric

North Western Washington State USA
Nomad Willy is offline   Reply With Quote
Old 02-13-2013, 08:20 PM   #44
Grand Vizier
 
Delfin's Avatar
 
Join Date: Jan 2010
Posts: 2,497
Quote:
Originally Posted by BobH View Post
Yes, there is a transmission cooler. Just got the word from PRM New Age, "Synthetic or part synthetic oil is not approved. Use a diesel engine mineral oil only."

Bob
Interesting. I wonder why no synthetic if they approve multigrade? Too slippery?
__________________
Delfin
"Dad always thought laughter was the best medicine, which I guess is why several of us died of tuberculosis." - Jack Handy
Delfin is offline   Reply With Quote
Old 02-13-2013, 08:59 PM   #45
Guru
 
Daddyo's Avatar


 
City: Cruising East Coast US
Country: USA
Vessel Name: Grace
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 2,441
Quote:
Originally Posted by Delfin View Post
Interesting. I wonder why no synthetic if they approve multigrade? Too slippery?
I'm going to go with ignorance.
__________________

__________________
Mark Bowerman
Brokerage owner and cruiser
Esse Quam Videri
http://graceyachting.com/
Daddyo is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 04:01 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012