oil pressure - Triumph Forum: Triumph Rat Motorcycle Forums
Hinckley Classic Triples 885cc Classic Styled T3's: Legend, Thunderbird, Thunderbird Sport & Adventurer.

 2Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 26 (permalink) Old 08-19-2019, 08:20 PM Thread Starter
SuperStock
Main Motorcycle: 98 tbs
Senior Member
 
cannucktbs's Avatar
 
Join Date: Oct 2014
Location: cambridge ontario canada
Posts: 285
oil pressure

first proper ride since getting my old tbs back and once warmed up the oil light flickers at idle, it goes out over 1200 rpm, but i just unscrewed the oil sender and bolted in a snapon oil pressure tester, it was showing 8 at idle and only 20 at 3000rpm, book says should be 40 at 5000rpm, i couldnt get pressure above 20! previous owner knows nothing about these so whilst he had it the local triumph dealer serviced it and stripped sump plug! they pulled pan and fixed this and can only assume they would have checked or cleaned filter etc while pan was off, bike runs on motul 7100 full syn and is fresh, i am at 90000km but it runs ok, would it be more likely to be oil pump or relief valve/ or should oil pressure be checked at the pipe to head and not switch? although i would think it should give same reading, dont want to pull pan yet as dont have gaskets and will probably need to order them in, thoughts??
cannucktbs is offline  
Sponsored Links
Advertisement
 
post #2 of 26 (permalink) Old 08-19-2019, 11:18 PM
WSC
Site Supporter
Pole Position
Main Motorcycle: '07 Dyna Low Rider
Lifetime Premium
 
WSC's Avatar
 
Join Date: Apr 2012
Location: New Hampshire
Posts: 3,214
Other Motorcycle: '99 Legend TT
Extra Motorcycle: Thunderbolt, T150V
Quote:
Originally Posted by cannucktbs View Post
thoughts??
Don't ride it.

Pressure at the pipe will be lower, if anything.

No reason not to check the relief valve, but, if it's leaking because of debris, you have to consider where the debris could have come from. A bit of carbon isn't much to worry about, but a piece of metal is a different story. I'd pull the filter apart and inspect it for metal. You might want to consider an oil analysis, too. (Don't bother if the oil is new.)

I suppose there could be a problem from the oil pan R&R.

John
Laconia Bike Week 2019 - See you all next year
2007 HD FXDL
1999 Legend TT
1975 T150V, 1968 BSA Thunderbolt, x2004 Thunderbird Sport
WSC is offline  
post #3 of 26 (permalink) Old 08-22-2019, 07:42 PM
Grand Prix 250
Main Motorcycle: 2003 Thunderbird Sport
Member
 
Join Date: Mar 2017
Location: Vernon Canada
Posts: 73
Other Motorcycle: 1974 Harley Sprint
Extra Motorcycle: Norton Commando guitar
Why not try a different gauge, just in case the Snap On gauge is whack. That's just what I'd do....
Landlocked likes this.
Trusty is offline  
 
post #4 of 26 (permalink) Old 08-22-2019, 09:09 PM Thread Starter
SuperStock
Main Motorcycle: 98 tbs
Senior Member
 
cannucktbs's Avatar
 
Join Date: Oct 2014
Location: cambridge ontario canada
Posts: 285
Quote:
Originally Posted by Trusty View Post
Why not try a different gauge, just in case the Snap On gauge is whack. That's just what I'd do....
hoping to do that at the weekend, then pull sump and check relief valve,
cannucktbs is offline  
post #5 of 26 (permalink) Old 08-23-2019, 03:18 PM
World SuperBike
Main Motorcycle: 2002 Triumph America
Senior Member
 
Wire-Wheels's Avatar
 
Join Date: Jun 2015
Location: North 34 / West 117
Posts: 1,844
Other Motorcycle: 1995 Triumph Sprint
Extra Motorcycle: 2000 Triumph Legend TT
Both the idiot light AND the gauge are telling you "Som-Ting-Wong". I would not run it until I found out what is going on. Putting on a different gauge is not going to help fix an obvious problem. ...J.D.
WSC likes this.
Wire-Wheels is offline  
post #6 of 26 (permalink) Old 08-23-2019, 09:35 PM Thread Starter
SuperStock
Main Motorcycle: 98 tbs
Senior Member
 
cannucktbs's Avatar
 
Join Date: Oct 2014
Location: cambridge ontario canada
Posts: 285
i have been looking for rebuild parts incase the worst has happened but cant seem to find anything, anyone know where i can find big end shells etc??
cannucktbs is offline  
post #7 of 26 (permalink) Old 08-23-2019, 10:20 PM
World SuperBike
Main Motorcycle: 2002 Triumph America
Senior Member
 
Wire-Wheels's Avatar
 
Join Date: Jun 2015
Location: North 34 / West 117
Posts: 1,844
Other Motorcycle: 1995 Triumph Sprint
Extra Motorcycle: 2000 Triumph Legend TT
If the bottom end is not making any "expensive noises" you might be able to get away with replacing just an oil pump. ...J.D.

Last edited by Wire-Wheels; 08-23-2019 at 10:53 PM.
Wire-Wheels is offline  
post #8 of 26 (permalink) Old 08-24-2019, 07:38 PM Thread Starter
SuperStock
Main Motorcycle: 98 tbs
Senior Member
 
cannucktbs's Avatar
 
Join Date: Oct 2014
Location: cambridge ontario canada
Posts: 285
finally got rear suspension off to allow access to one bolt on oilpan! there were aluminum filings in the gauze filter from when the helicoil was done by the dealer! according to the invoice they removed pan to do it but not so sure looking at this crap!, oil relief valve was clean and smooth to push in with no binding, the gasket where it surrounds where the oil filter goes was off to one side so was not fully sealing pan to main block, could this cause low oil pressure!
Attached Thumbnails
Click image for larger version

Name:	20190824_161125.jpg
Views:	7
Size:	1.47 MB
ID:	653338   Click image for larger version

Name:	20190824_161003 (1).jpg
Views:	10
Size:	1.40 MB
ID:	653340  
cannucktbs is offline  
post #9 of 26 (permalink) Old 08-24-2019, 07:48 PM
Supersport 400
Member
 
Join Date: Sep 2015
Location: not here
Posts: 91
Quote:
Originally Posted by cannucktbs View Post
finally got rear suspension off to allow access to one bolt on oilpan! there were aluminum filings in the gauze filter from when the helicoil was done by the dealer! according to the invoice they removed pan to do it but not so sure looking at this crap!, oil relief valve was clean and smooth to push in with no binding, the gasket where it surrounds where the oil filter goes was off to one side so was not fully sealing pan to main block, could this cause low oil pressure!


oh my dog... did you cut open the oil filter to check for debris in there?


Sent from my iPhone using Tapatalk
prmurat is online now  
post #10 of 26 (permalink) Old 08-24-2019, 08:25 PM Thread Starter
SuperStock
Main Motorcycle: 98 tbs
Senior Member
 
cannucktbs's Avatar
 
Join Date: Oct 2014
Location: cambridge ontario canada
Posts: 285
filter is actually clean and no gold colouring in oil either,
cannucktbs is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

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










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



Posting Rules  
You may post new threads
You may 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