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Fuel and fuel systems Petrol vs Diesel, LPG Conversions, premium fuels, and all that gas

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  #131  
Old 2 Weeks Ago
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I know no-one has posted on this for 12 months but I'm buying a Fuel Master generic kit as I can't see one listed for the Pajero. To save me pulling it apart to measure, I assume I need the one with the 5/16" barbs (not the 3/8')? I'm making my own bracket.
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  #132  
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Western filters have a FM kit for Pajero.

Check fuel lines re bard size.

https://www.westernfilters.net.au/os...iABEgI-DPD_BwE

I prefer the Donaldson kit. I believe it has better water removal properties ie emulsified water @95%

Hill
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  #133  
Old 1 Week Ago
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Thanks for that Hill. Just found your other post on this topic which has helpful info as well. So it seems they are 10 mm (3/8"). I'll save some money and make my own bracket as I have access to all the gear.
Cheers Eddy
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  #134  
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I know this will just add fire to the debate, but everything I have read on here has made the assumption that fitting a pre or post filter is necessary. I was going to fit one, but I thought I'd ask a local professional who's been rebuilding and servicing diesel engines for 60 years.

Two engine rebuild/service professionals in Australia recommend that you do not fit a pre or post-filter. I've just done some reading after talking to Cooma Diesel who said they have seen too many damaged pumps and motors from people fitting secondary filters to the CRD as they restrict flow too much. They only recommend fitting a water watch system ($590) as they say water is the big killer on many CRD diesels and can cost you $10's of thousands of dollars to fix. See this article. They say the CRD pressure is 30,000 psi and emulsifies the water so it is in solution with the diesel which means the filter can only remove a very small amount of the water, the rest stays in the system and rusts the inside of the metal lines. An average of 9 litres of diesel is consumed by the motor each hour with another of 50 litres cycled through for cooling and lubrication of the pump and then returned to the tank, so your whole tank is cycled through every 2 hours or so. The video on their page shows how easily it is for water to pass through a 0.2 micron filter, even easier than diesel. The smallest filter discussed here is only 2 micron.

I know Donaldson's say they have tested their filter system and it only restricts the flow by 0.2% but they are in the business of selling filters and filter systems.

Berrima Diesels also support what Cooma diesel say - pre-filter-kits

They both say the factory filter is designed in conjunction with the supplier of the injectors and should be the only one that is used and changed regularly.

Water Watch is made by Responsive Engineering who I assume are Cooma Diesel as they have the same address listed and was designed and made here in Australia to stop water damage in diesels while providing zero flow restriction. Some might be cynical about them just wanting to sell thier product but they say they saw a need and designed a solution.

They also sell their own blend of Responsive Common Rail Diesel Fuel Additive Lubricant And Conditioner which they say is needed in Australia as the low sulfur diesel has very poor lubrication properties.
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  #135  
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Quote:
Originally Posted by Edzhere View Post
I know this will just add fire to the debate, but everything I have read on here has made the assumption that fitting a pre or post filter is necessary. I was going to fit one, but I thought I'd ask a local professional who's been rebuilding and servicing diesel engines for 60 years.

Two engine rebuild/service professionals in Australia recommend that you do not fit a pre or post-filter. I've just done some reading after talking to Cooma Diesel who said they have seen too many damaged pumps and motors from people fitting secondary filters to the CRD as they restrict flow too much. They only recommend fitting a water watch system ($590) as they say water is the big killer on many CRD diesels and can cost you $10's of thousands of dollars to fix. See this article. They say the CRD pressure is 30,000 psi and emulsifies the water so it is in solution with the diesel which means the filter can only remove a very small amount of the water, the rest stays in the system and rusts the inside of the metal lines. An average of 9 litres of diesel is consumed by the motor each hour with another of 50 litres cycled through for cooling and lubrication of the pump and then returned to the tank, so your whole tank is cycled through every 2 hours or so. The video on their page shows how easily it is for water to pass through a 0.2 micron filter, even easier than diesel. The smallest filter discussed here is only 2 micron.

I know Donaldson's say they have tested their filter system and it only restricts the flow by 0.2% but they are in the business of selling filters and filter systems.

Berrima Diesels also support what Cooma diesel say - pre-filter-kits

They both say the factory filter is designed in conjunction with the supplier of the injectors and should be the only one that is used and changed regularly.

Water Watch is made by Responsive Engineering who I assume are Cooma Diesel as they have the same address listed and was designed and made here in Australia to stop water damage in diesels while providing zero flow restriction. Some might be cynical about them just wanting to sell thier product but they say they saw a need and designed a solution.

They also sell their own blend of Responsive Common Rail Diesel Fuel Additive Lubricant And Conditioner which they say is needed in Australia as the low sulfur diesel has very poor lubrication properties.
Hmm, the emulsifying bit does not make sense. The pump is after the filter, not before. The pump sucks diesel through the filter constantly to maintain pressure in the rail.
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  #136  
Old 1 Week Ago
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So the water emulsifies at 30000psi, perhaps? I think the Paj runs around the 22000 - 25000psi mark but in any case it is after the filter.


60 years in the game? Puts the guy somewhere around 80 wouldn't it? The modern CRD has only really come to the fore in the past decade so no matter how many years in the game the most experience anyone can have with the engines we're talking about is around a decade perhaps a little longer.


So the suggestion is to not fit a filter but must have a water watch device in a system that has water emulsified (now a part of the diesel fuel itself) and therefore probably isn't detectable anyway in that state. So why then isn't the factory fitted water alert sufficient?


I dunno but there seems to be some conflicting statements.
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  #137  
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Eddy
Thanks for posting.
I now have a 200 series and have been researching how to improve the filtration system of my new vehicle. The factory filter is around 10 micron @ 95% efficiency. As stated above the Donaldson filter material does a great job in removing water.

With the 200 series the pump delivers up to 275L/H and requires a filter that has a much higher capacity than the ...615. Some sites quote 160L/H for the 200 series fuel pump. The 200 series is very dependent on fuel flow to cool the pump. There is a bit of information on LCOOL re additional filter kits causing flow restrictions. My belief is that they are not high enough capacity. As flow rates increase pressure drop also increase and pressure drop can also become a major issue.

Flow restrictions can certainly cause damage to fuel pumps and this is likely to be the reason why some diesel specialists not recommend their use.

Many sites suggest not using a 2 micron FM100 on the 200 series and recommend a 5 or 30 micron filter.

I also looked at the water watch system. My understanding is that this only removes water droplets and not emulsified water. Happy to be corrected.

With Donaldson's help I have now found a filter that is almost 400L/H and removes 95% of emulsified and whole water and is rated at 3 micron 99% efficiency. Same filter medium as the ...615.

I think I have found 2 locations where I can install it however I need to buy a shoe horn and some brave tablets to help the installation process.

Hill
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