confused about primary case oil.... - Triumph Forum: Triumph Rat Motorcycle Forums
Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 11-26-2012, 05:47 PM Thread Starter
Senior Member
SuperStock
Main Motorcycle: my 66' Triumph 650
 
Join Date: Mar 2011
Location: Wichita Kansas
Posts: 272
Other Motorcycle: 2007 Harley softail
confused about primary case oil....

when i first purchased my bike last year (66' TR6R) i asked the forum about what type of oil was best for primary...ATF Type "F" seemed to be the consensus. the service manual says SAE 20....and now i have been reading threads about people using the same 20/50 engine oil in oil tank and primary??? also saying that the primary oil can end up in crankcase, which if that is true, i would think using the same oil in primary would make the most sense.....can someone help clear this up for me, and tell me the best way to go? i am currently using a good grade motorcycle oil 20/50 rated at SG in the oil tank....should i use the same in primary? thanks, Rick
razman is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 11-26-2012, 06:31 PM
Super Moderator
Team Owner
Main Motorcycle: Rickman T120
 
Join Date: May 2010
Location: Victoria Australia
Posts: 4,721
Other Motorcycle: T160,TR6
Your primary oil is separate from the crankcase and engine oil.
That was changed in 1970 by leaving out the crankshaft seal,drilling 3 small level holes to drain excess oil out of the primary,and running the crankcase breather off the primary case.'70 onward use the same shared oil in the primary and crankcase.

Light oil in the primary is better for chain life.ATF gives less clutch slippage than light engine oil.The best oil to use is type "F" ATF.It won't mix with your engine oil on a standard '66.
Mr.Pete is offline  
post #3 of 3 (permalink) Old 11-26-2012, 06:51 PM Thread Starter
Senior Member
SuperStock
Main Motorcycle: my 66' Triumph 650
 
Join Date: Mar 2011
Location: Wichita Kansas
Posts: 272
Other Motorcycle: 2007 Harley softail
THANK YOU........i was confused/concerned....Rick
razman is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
how to remove hub in primary case? razman Classic, Vintage & Veteran 16 12-04-2011 05:33 PM
primary case oil ; tigercub Classic, Vintage & Veteran 7 06-05-2010 11:28 PM
Primary case question. RetroRod Classic, Vintage & Veteran 6 05-31-2010 08:39 PM
Crank Case / Primary Chain Case - Seals Help Will71bonneville Classic, Vintage & Veteran 8 02-12-2010 01:48 PM
Primary chain case crazypierre Classic, Vintage & Veteran 13 02-19-2006 12:31 PM

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 On

 
For the best viewing experience please update your browser to Google Chrome