Reply
 
Thread Tools Search this Thread
 
Old 01 March 2007, 15:10   #41
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,596
10microns.
Attached Thumbnails
Click image for larger version

Name:	Filtering 10micron x800.jpg
Views:	192
Size:	60.0 KB
ID:	25251  
__________________
JW.
jwalker is offline   Reply With Quote
Old 01 March 2007, 15:11   #42
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,596
The mix after filtration.
Attached Thumbnails
Click image for larger version

Name:	After filtration @10microns x800.JPG
Views:	246
Size:	37.6 KB
ID:	25252  
__________________
JW.
jwalker is offline   Reply With Quote
Old 01 March 2007, 15:19   #43
Member
 
Jono's Avatar
 
Country: UK - England
Town: Over here
Boat name: S.S. Nobstick
Make: Three Wise Monkeys
Length: 3m +
Engine: 44lbs of thrust....
Join Date: Nov 2003
Posts: 2,127
...so the moral of the story is... "use a water separator, but no filter 'n let the engine digest those pesky little bugs.."....
__________________
Jono is offline   Reply With Quote
Old 01 March 2007, 15:54   #44
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,596
If Soltron's claims that the bug will be broken down small enough to pass through a filter and be burned off are correct, then the bug should still be in the jar. Plainly, it isn't and most of it was stopped at 35microns.

I use Crossland filters and they claim the filter material to be 98.7% efficient at 2microns so even tiny particles which may have passed this test at 10microns would likely be trapped by a diesel filter.

Some thoughts following this: This sample I extracted from my tank in November last year. It was stored outside so, say, about 10°c average temperature and during the winter there was no noticeable growth in the bug. As can be seen in the jar, the growth was very noticeable within 3 days and the jar was kept indoors at room temperature, approximately 20°c. It appears the bug is likely to be much more of a problem in summer or in warm climates.

The bug in the original jar was left undisturbed and it continued to produce sediment which sank to the bottom of the water layer. I'll put a pic at the bottom of this post.

Providing a boat had an effective water separator and filter system, it would seem good practice to have the fuel tank pickup pipe at the lowest point of the tank rather than having a sump or dead volume. This would ensure any water, sediment or bug would be lifted out of the tank immediately the engine was started. It may also be a good idea to allow the engine to run a while before moving the boat, in order not to mix up the water and sediment, so that it will be lifted from the tank. Following this, an inspection of the water separator before moving off might be worthwhile.

If a boat is in regular use and the fuel pick up is at the bottom of the tank, I would reckon it is not likely to suffer a bug problem other than it being discharged into the tank from an outside source, ie. bad fuel.

As for Soltron....I've wasted my money and it's fek all use. Whether is gives better fuel economy, lower exhaust emissions and less exhaust soot as claimed, I've no idea....but I could have a guess.

Here's the sediment building up.
Attached Thumbnails
Click image for larger version

Name:	Original jar x800.JPG
Views:	229
Size:	36.1 KB
ID:	25253  
__________________
JW.
jwalker is offline   Reply With Quote
Old 01 March 2007, 17:31   #45
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,951
Quote:
Originally Posted by jwalker View Post
As for Soltron....I've wasted my money and it's fek all use. Whether is gives better fuel economy, lower exhaust emissions and less exhaust soot as claimed, I've no idea....but I could have a guess.
Perhaps I can answer that,

Pete
Attached Thumbnails
Click image for larger version

Name:	C48_jpg.jpg
Views:	311
Size:	48.1 KB
ID:	25255  
__________________
.
Ribnet is best viewed on a computer of some sort
Pete7 is offline   Reply With Quote
Old 01 March 2007, 17:39   #46
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,596
WTF....
__________________
JW.
jwalker is offline   Reply With Quote
Old 01 March 2007, 18:10   #47
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,951
Thought you would like that
__________________
.
Ribnet is best viewed on a computer of some sort
Pete7 is offline   Reply With Quote
Old 01 March 2007, 19:24   #48
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,726
Never seen a coal fired RIB before
__________________
A Boat is a hole in the water, surrounded by fibreglass, into which you throw money...

Sent from my Computer, using a keyboard and mouse
BogMonster is offline   Reply With Quote
Old 01 March 2007, 21:34   #49
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,951
Quote:
Originally Posted by BogMonster View Post
Never seen a coal fired RIB before
Thanks, but she may well have been on active service during the Falklands, so not doing to badly
__________________
.
Ribnet is best viewed on a computer of some sort
Pete7 is offline   Reply With Quote
Old 04 March 2007, 00:40   #50
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
Quote:
Originally Posted by Pete7 View Post
Thanks, but she may well have been on active service during the Falklands, so not doing to badly
Be great for avoiding customs.....
__________________
codprawn is offline   Reply With Quote
Old 06 March 2007, 01:22   #51
Member
 
Country: UK - England
Town: Exmouth, Devon
Length: no boat
Join Date: Oct 2004
Posts: 767
More on this in PBO April

There's a test of diesel bug additives in April PBO. Looks remakably like JW's experiment.

Soltron gets slated, there's 2 or 3 good ones.
__________________
www.allgadgets.co.uk
Tel 01395 227727
MikeCC is offline   Reply With Quote
Old 31 October 2011, 21:28   #52
Member
 
Declanor's Avatar
 
Country: UK - England
Town: South Coast
Boat name: TBC
Make: Delta
Length: 7m +
Engine: 2x Yamaha ME420s
Join Date: Apr 2010
Posts: 61
Quote:
Originally Posted by MikeCC View Post
There's a test of diesel bug additives in April PBO. Looks remakably like JW's experiment.

Soltron gets slated, there's 2 or 3 good ones.
Can i ask which the good ones are?
__________________
Declanor is offline   Reply With Quote
Old 06 April 2018, 19:20   #53
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,596
OK, an update! This is the jar shown in post #42 on 1st March 2007 so now been lying undisturbed for 11 years!

Nice bright diesel!

Edit: Fek, it looks like anti-gravity diesel. Someone spin it upright please.
Attached Thumbnails
Click image for larger version

Name:	attachment.jpg
Views:	194
Size:	128.1 KB
ID:	124156  
__________________
jwalker is offline   Reply With Quote
Old 07 April 2018, 20:36   #54
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,596
Aha, that's better. Ta.
__________________
JW.
jwalker is offline   Reply With Quote
Old 08 April 2018, 11:52   #55
Member
 
The Black Pig's Avatar
 
Country: UK - England
Town: Salcombe
Boat name: The Black Pig
Make: Ranieri
Length: 4m +
Engine: 60c hp tohatsu
MMSI: 235038018
Join Date: Jun 2013
Posts: 443
Send a message via AIM to The Black Pig
Quote:
Originally Posted by declanor View Post
can i ask which the good ones are?
+1.......
__________________
The Black Pig 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




All times are GMT. The time now is 18:18.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.