Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm - SailNet Community
 
LinkBack Thread Tools
post #1 of 7 Old 09-09-2013 Thread Starter
Junior Member
 
Join Date: May 2010
Location: Albany, NY
Posts: 9
Thanks: 3
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

Hello.

Today, our Volvo Diesel TAMD41H-B(BT) engine had oil pressure problems. Everything is fine until the RPMs get above around 1300. At that point, the oil pressure gauge shoots up to 120 PSI or higher. This is not normal. Normally, we run at 55-60 psi at 1700-1800 RPM. We caught this problem fairly quickly as we monitor the engine closely.

However, there is very little guidance on troubleshooting the problem in any of our manuals. Does anyone have any ideas?

Thank you,
Paul Fowler
fowlerpb is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 7 Old 09-09-2013
Mechsmith
 
Join Date: Jun 2009
Location: Almost Heaven West Virginia
Posts: 232
Thanks: 1
Thanked 17 Times in 15 Posts
Rep Power: 7
 
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

First check it with a mechanical gauge. The electric gauges can short out. If it turns out to really exceed normal pressures then you have a problem with the relief valve. (Usually mounted in the oil pump)

Mechanical gauges are available in most auto parts stores fairly inexpensively.

I have seen a stuck relief valve blow the oil filter off. Not good.

Seafarer 29 KCB
Mechsmith is offline  
Quote Quick Reply Share with Facebook
The Following User Says Thank You to Mechsmith For This Useful Post:
fowlerpb (09-09-2013)
post #3 of 7 Old 09-09-2013 Thread Starter
Junior Member
 
Join Date: May 2010
Location: Albany, NY
Posts: 9
Thanks: 3
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

It looks like I have some study to do. The Volvo operator's manuals don't show the locations of the oil relief valve, etc... Luckily, I am anchored close to an auto parts store, so I can go there.

Could a semi-clogged oil filter, cause this issue? Or would that simply cause lower oil PSI? Also, my wife notices some "squeaking" from the front of the engine about the time that the PSI jumps up. I was thinking it was a normal belt squeak, but could that be related?
fowlerpb is offline  
Quote Quick Reply Share with Facebook
post #4 of 7 Old 09-09-2013
Member
 
Join Date: Mar 2007
Posts: 72
Thanks: 11
Thanked 4 Times in 4 Posts
Rep Power: 9
 
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

From what I can remember of oil pressure relief valves they're designed for the viscosity of the oil which changes with oil temperature as well as the output of the oil pump.

Is there any difference in oil pressure when the oil is cold vs warm and if so at what rpm's?

I'm having problems with my electrical fuel level gauge so I like the comment of checking the oil pressure gauge for a short. My problem is with the sending unit.

Last edited by kentobin; 09-09-2013 at 06:54 PM.
kentobin is offline  
Quote Quick Reply Share with Facebook
post #5 of 7 Old 09-09-2013 Thread Starter
Junior Member
 
Join Date: May 2010
Location: Albany, NY
Posts: 9
Thanks: 3
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

We noticed the oil pressure problem fairly quickly, and it remained a problem after the engine warmed up, so I don't think the temperature of the oil is impacting our problem. I am still curious if anyone has seen high PSI with filters that need replacing.

I should give a little more background. Three weeks ago, the engine flooded.

We replaced all of the oil and filters about 5 times until the oil was very clean and the engine ran smoothly. The oil currently looks very clean and is at the correct level. The engine has been running smooth since the incident. I wonder, however, if the oil filter might have taken out more contaminant and simply replacing the oil filter will fix the issue?

However, if high oil PSI is never associated with an oil filter, then there is no need to replace another filter. Perhaps something got into the relief valve, but why happen now after running the engine for 30 hours since the incident?

Should I go get the manual pressure gauge first, or should I change the oil filter first?
fowlerpb is offline  
Quote Quick Reply Share with Facebook
post #6 of 7 Old 09-09-2013
Member
 
Join Date: Mar 2007
Posts: 72
Thanks: 11
Thanked 4 Times in 4 Posts
Rep Power: 9
 
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

I don't know what brand of oil pressure gauge you have but vdo has had a number of people complain about their sending units on boat forums. I came across that info several years ago when I was researching which gauges to buy.

That's the extent of my knowledge base.

I did come across this site today: http://boatdiesel.com/index.cfm?FM=1

It allegedly has manuals for your engine in its library but you need a $25 subscription. It also has engine forums/blogs. Not sure how much if anything is free. Depending on how desperate you get you might want to give them a try.

One review for boatdiesel.com site: boatdiesel.com - worth subscribing?
kentobin is offline  
Quote Quick Reply Share with Facebook
The Following User Says Thank You to kentobin For This Useful Post:
fowlerpb (09-10-2013)
post #7 of 7 Old 09-10-2013
Mechsmith
 
Join Date: Jun 2009
Location: Almost Heaven West Virginia
Posts: 232
Thanks: 1
Thanked 17 Times in 15 Posts
Rep Power: 7
 
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

The oil pressure relief valve has to be situated before the filter. There is also one in the filter housing. In that case it is called an "oil filter bypass valve".

The squeaking noticed could be the result of a short putting a high load on the alternator.

First it's good to determine what is broken. Hence the mechanical gauge. Guessing is seldom fruitful.

The auto parts store may have a picture of the oil pump and perhaps also a picture of the sending unit. It's usually helpful to know what you are looking for. That is where you will put the mechanical gauge.

Seafarer 29 KCB
Mechsmith is offline  
Quote Quick Reply Share with Facebook
The Following User Says Thank You to Mechsmith For This Useful Post:
fowlerpb (09-10-2013)
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


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

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
High oil pressure kegendron Diesel 6 08-10-2010 12:37 AM
Volvo Penta MD 7A high oil pressure? waterrat2 Diesel 4 10-15-2009 03:22 AM
Volvo 2002 Crankcase high pressure Esio Diesel 3 07-30-2009 08:56 AM
High pressure zodiac Newport41 Gear & Maintenance 12 01-29-2007 12:41 AM
At sea. Volvo Ocean Race: Sanderson still leads but high pressure ridge good change everything @ BYM Sailing News NewsReader News Feeds 0 04-15-2006 08:16 AM

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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