More 5245 grief

[hve]

Tractor did not start in the morning but primed it started then left it and has now started for the last two days now won't start with out priming so I think it's a faulty lift pump

Could also be just the Hand primer sucking in Air, rather than the main lift pump, either way the Electric pump will fix it....... best to put a line filter between the tank and the electric pump if the tank is rusty/dirty or you will get crap in the electric pump valves.

Cheers
Steve

 

[dave_peters]

After reading this thread, I would suspect that you have a bacterial growth either in your bulk tank or your tractor tank, this creates a black gunge which blocks filters rapidly. It can be easily cured with an additive available from your tractor dealer, and each time you have a diesel delivery add some to the tank.
We have had this problem since I retired and no longer use much fuel . I am told it's due to the ethanol content in modern diesel.

 

[hve]

I am told it's due to the ethanol content in modern diesel.

Not sure i would believe there is high Ethanol content in modern diesel, there can be some in poor quality BioDiesel but there should be none in Mineral based Diesel, and certainly not more than old high Sulphur diesel.

In any case, you could be on to something, but this problem has been around as long as diesel engines have been around, it is called "Diesel Bug" and is most commonly a problem when there is water contamination in the diesel, (big problem on Boats) and a slimy green gel is produced that blocks pipes and filters. it is fatal in modern CRDi diesel systems, and just a pain in older stuff.

if there is any sign of green slime in any of the diesel lines you need to treat the bulk tank and treat the Tractor tank.

and discard and replace all the filters.

 

[hala]

Interesting link about Diesel Bug treatment without any chemicals

http://dieselsolutions.co.nz/debug-faqs.shtml

What do you think ? A solution for tractor users having this problem.

Hazze

 

[dave_peters]

I believe I'm right in saying that all diesel in UK has to have a percentage of bioethanol included by law.
You are correct when you say moisture, either from condensation or contamination is a major contributing factor.
Sorry Hazze, but I cant open your link.

 

[hala]

Try to visit the main adress http://dieselsolutions.co.nz and click Watch the DE-BUG 5 minute video...
In Scandinavia with our cold-warm-cold weather, water condensation is our biggest enemy in diesel. A real bug creator. Up to now I am using "Fuel Set" however quite expensive.

Hazze

 

[Renze]

in 2008 when they first started mixing this crap in, at work we had a lot of work from broken common rail systems, both on Cummins and JD engines. All because of the biodiesel mixed in, the stuff is hygroscopic (absorbs moisture from the air) and then bacteria make it like snot. CR systems dont like it. Havent heard issues with inline Motorpal pumps yet, but i guess it will plug up fuel filters...

 

[hve]

Hi Renze, Bio Diesel is getting better and the standards have been re written in the last 4 years.

I will note here that Bio Ethanol, is ONLY added to Petrol, and that Biodiesel is added to Diesel and should have all the Ethanol (used in the production process to remove water and Glycerol) removed by hot vacuum filtration. (Spec for Ethanol contamination is 0.2% Max in B100, however typically this level is only .001% EOH)

In Europe the test Standard for Biodiesel is the highest in the world, with a 10 hour Rancimat requirement, while in USA the requirement is only 3 hours! most other countries call for 6 hours as a minimum.
Special additives are added to the B100 (100% Bio Diesel) before blending off to B5 (5% Biodiesel/95% Mineral diesel) the additives prevent oxidation and sedimentation, other additives are used to stop freezing in cold weather and standards differ from country to country, in NZ cloud point requirement is only minus 2Deg.C (or there abouts) and only added during winter! so if you are storing fuel (any fuel) it should be used within the season it was purchased.

Also of note, Biodiesel's are not tolerant to Copper!!!!! All copper pipes, brass taps, Copper O rings, etc must be removed from the fulesystem to avoid reaction with copper and Gelling of the Biodiesel....... again some manufacturers use a special additive to reduce this effect for fuel passing[/] a copper O ring on a banjo fitting, however it is not going to be effective enough if your tractor (like mine) has a brass fuel tap in the bottom of the tank! ......... Modern fuel systems do not have any copper for this reason .... CRDi included.

The De-bug magnetic filter system ( http://dieselsolutions.co.nz/installation.shtml ) is interesting, and not all that expensive, i would like to here from some body that has tried it............ however it will not remove water, so a water trap must be fitted before the De-Bug unit ........ there is a nice flow chart on the website.
Also see:

http://dieselsolutions.co.nz/how-to-purchase.shtml

 

[hve]

Some good background on Biodiesel:

http://www.dieselsolutions.co.nz/cmscontent/File/Myths_Facts.pdf

if you cannot open the link i can email it to you as a PDF

 

[bobnz]

Debug was developed locally in NZ and is now used worldwide.
Basically the device is placed in the fuel line and the secret is in the construction of a chamber with an intense magnetic arrangement that kills the "diesel bug" microbes.

As fuel is returned to the tank with spill off in the pump and at the injectors, over time a much of the older diesel in the tank will have been circulated through the Debug devise.

Installations using diesel bug report good results but if a motor is left for long periods without running of course the bug can grow in the tank.

The link/s above appears to be working at the moment, for me anyway.
Debugs did to come in various sizes.

 

[hayesy34]

Hi everyone
just a quick update since my last post, I know its been a while but time fly's.

got a basic electronic lift pump of ebay 15 fitted near the tank and kept the old lift pump working as well. now she starts first turn after being left a week and in all weather. she runs fine on biodiesel from the pump and its great.

thanks for your help