Reply
 
Thread Tools Search this Thread
 
Old 17 March 2005, 13:14   #1
Member
 
Country: UK - Wales
Town: Port Talbot
Boat name: Big Blue / Aurora
Make: Pac 22 Taskforce 810
Length: 6m +
Engine: 160Mermaid 250Sabre
MMSI: 235061166
Join Date: Sep 2004
Posts: 32
P22 Oil Pressure

Hi, Took my Pacific to sea for the first time today and noticed that the oil pressure was at about 5 to 5.5 Bar (6 bar is full scale!) is this excessive?
The engine was quite warm about 60 deg C and RPM say 2200, Just thought I would ask before I start checking instruments etc..
Cheers,
__________________

__________________
Leroy is offline   Reply With Quote
Old 17 March 2005, 13:22   #2
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,850
Leroy yes its over the top, from memory its 4-5 bar but I can't check until tomorrow as the manual is on me desk. Had the same problem this time last year and a series of oil leaks just got worse over the year. Engine had to come out to replace the rear crank shaft oil seal. After this and an oil change, pressure is back to 4 bar. Not sure of the cure but an oil change with new filter would be high on my list of priorities.

Temp looks okay mine runs at 70 under load dropping slightly after a while at tick over.

RPM is a little low do you know what size prop you have on her ? also the condition of the contacts on the rev counter pick up under the fuel filters can alter the rev counter reading. Might be worth giving them a clean but they are not easy to reach.

Pete
__________________

__________________
Pete7 is offline   Reply With Quote
Old 17 March 2005, 13:43   #3
Member
 
Country: UK - Wales
Town: Port Talbot
Boat name: Big Blue / Aurora
Make: Pac 22 Taskforce 810
Length: 6m +
Engine: 160Mermaid 250Sabre
MMSI: 235061166
Join Date: Sep 2004
Posts: 32
Thanks Pete,
I plan to go out again tomorrow so I shall put a mechanical gauge straight on the block, If that reads high then I will do an oil and filter change, I didnt go to full throttle as the oil pressure really put me off!!

I am not sure of my prop size actually, I think its a 19", but thats the least of my worries at the moment
__________________
Leroy is offline   Reply With Quote
Old 17 March 2005, 15:00   #4
Member
 
Country: UK - Scotland
Town: Edinburgh
Boat name: D Hollins
Make: pacific 38
Length: 10m +
Engine: Twin 212 hp Diesel
Join Date: Dec 2001
Posts: 176
Leroy, the oil pressure in your boat used to start off quite high and then drop as the engine warmed up. The oil pressure was spot on but that was how i remember it over a year ago.

The prop that was on the boat when i dropped it off to you was a 16 3/4 diameter x 21 pitch. The leg will actually take a 19" prop as it is a 113 lower half. If you put a 19" prop on you will probably have to change the spinner nut for a plain nut.

As I remember, the previous owner that you did the deal with overfilled the thing with oil on occasion so it may be worth checking the level first!
__________________
Neville is offline   Reply With Quote
Old 17 March 2005, 15:55   #5
Member
 
Country: UK - Wales
Town: Port Talbot
Boat name: Big Blue / Aurora
Make: Pac 22 Taskforce 810
Length: 6m +
Engine: 160Mermaid 250Sabre
MMSI: 235061166
Join Date: Sep 2004
Posts: 32
Thanks Neville,
I will give it another go tomorrow and let it warm up thoroughly before checking with another gauge.
The oil level was normal but I will check that again to make sure!
__________________
Leroy is offline   Reply With Quote
Old 17 March 2005, 16:57   #6
Member
 
Country: UK - Scotland
Town: Edinburgh
Boat name: D Hollins
Make: pacific 38
Length: 10m +
Engine: Twin 212 hp Diesel
Join Date: Dec 2001
Posts: 176
Leroy, it might be an idea to change the oil sometime, and the filters all as part of a service. Also as you will know oils vary in viscocity and if an incorrect grade is used that can adjust the pressure slightly.
__________________
Neville is offline   Reply With Quote
Old 18 March 2005, 03:54   #7
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,850
The Halmatic manual says "A series 3 oil must be used with a turbocharged engine to ensure maximum engine life" It also gives a range of 2.7 - 4.1 bar for oil pressure.

I know I used 15/40 last year and Ian has recently pointed out to me that the manual says use Rimula 30 which I take to be an SAE 30 grade oil, unless anyone knows better.

Pete
__________________
Pete7 is offline   Reply With Quote
Old 18 March 2005, 05:19   #8
Member
 
Country: UK - England
Town: nr Lymington
Boat name: JU-JU
Make: Halmatic PAC22
Length: 6m +
Engine: 140.5 Mermaid
Join Date: Sep 2003
Posts: 1,400
Quote:
Originally Posted by Pete7
The Halmatic manual says "A series 3 oil must be used with a turbocharged engine to ensure maximum engine life" It also gives a range of 2.7 - 4.1 bar for oil pressure.

I know I used 15/40 last year and Ian has recently pointed out to me that the manual says use Rimula 30 which I take to be an SAE 30 grade oil, unless anyone knows better.

Pete
Pete
SAE 30 is a single grade oil which is old technology, all modern multi grades exceed Series 3. You need something between SAE 15W/40 to 20W/50, look for a API SF/CD sec oil. What you used last year is probably fine.

Back on thread oil is hydroscopic and if left unused for any period of time will get very ‘wet’. So I change my oil every six months without fail, it is so much cheaper than the consequences. Des
__________________
Scary Des is offline   Reply With Quote
Old 18 March 2005, 07:04   #9
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,850
Des,

Thanks, thats cleared up one worry, 15/40 TD oil it is then.

Pete
__________________
Pete7 is offline   Reply With Quote
Old 18 March 2005, 15:29   #10
Member
 
Country: UK - Wales
Town: Port Talbot
Boat name: Big Blue / Aurora
Make: Pac 22 Taskforce 810
Length: 6m +
Engine: 160Mermaid 250Sabre
MMSI: 235061166
Join Date: Sep 2004
Posts: 32
Thanks for your help guys,
Decided to change the oil and filter first thing, the oil was no problem used a BP turbo diesel engine oil 15/40 viscosity.
The filter though thats another story, could not get it off, in the end I had to remove the whole casting from the block and get it off in a vice with stillsons!!
It was worth it though as the oil pressure when warm is around the 4 bar mark but still nearly 5 bar when cold, but I can live with that.
When I eventually got on the water and opened her out the revs top out at 2100 which was about 26kts with 2 pob, but no excess smoke so I will probably check throttle positions, fuel pump settings before anything else.

On my return another problem developed! The stern drive wouldnt trim all the way up? On looking at the pump I discovered the motor and reservoir had almost detached itself from the pump body and lost all its fluid into my newly cleaned bilge in the process! (I had spent hours cleaning them after I managed to get hydraulic oil everwhere when overhauling one of the rams)
So I have spent the rest of the Afternoon removing/repairing and replacing the trim pump.
I hope not all my trips to sea are this involved but I suppose its better to get these problems out of the way before summer
__________________

__________________
Leroy is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 17:04.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.