Outer Limits 4x4 Board

the gq is leaking fair bit of diesel ive found where its coming from. on the back side of pump facing firewall its at the top. Its a brass bolt with reverse thread lock nut on it . any ideas what this bolt does with the locknut it suggests its set to a certain position would it have a o ring or ??????????
Any help greatly appreciated i have a photo on my phone and will try to upload

yeah cheers mate bit of an emergency cost me $40 to get to work and back today just trying to cover all bases

Its your fuel screw, it has an oring on it, just mark everything before you undo it.



Andy

hey guys dont know if it is reallated i have been talking to a mechanic that has had alot of trouble with diesel engines latley apparently the sulfur level in our diesel has been decresed and it makes the fuel drier therefore does'nt keep seals lubricated. he sugests the use of a diesel fuel additive to prevent this from happening.
Hope this is not the case just thought i would let you know it may be a possibility.

HIGH ROLLER wrote:hey guys dont know if it is reallated i have been talking to a mechanic that has had alot of trouble with diesel engines latley apparently the sulfur level in our diesel has been decresed and it makes the fuel drier therefore does'nt keep seals lubricated. he sugests the use of a diesel fuel additive to prevent this from happening.
Hope this is not the case just thought i would let you know it may be a possibility.

He may be a good mechanic, but he doesn't know his fuels.

Sulphur affects lubricity (lubrication of moving parts) - NOT seals and rubber/plastic bits. Aust has had ULSD (ultra low sulphur diesel - 50 ppm) since 2006.

seals are affected by the aromatic content of diesel (ring-type molecules) as they make seals expand and contract based on their content.

Diesel additives won't help seal life.

ISUZUROVER wrote:

HIGH ROLLER wrote:hey guys dont know if it is reallated i have been talking to a mechanic that has had alot of trouble with diesel engines latley apparently the sulfur level in our diesel has been decresed and it makes the fuel drier therefore does'nt keep seals lubricated. he sugests the use of a diesel fuel additive to prevent this from happening.
Hope this is not the case just thought i would let you know it may be a possibility.

He may be a good mechanic, but he doesn't know his fuels.

Sulphur affects lubricity (lubrication of moving parts) - NOT seals and rubber/plastic bits. Aust has had ULSD (ultra low sulphur diesel - 50 ppm) since 2006.

seals are affected by the aromatic content of diesel (ring-type molecules) as they make seals expand and contract based on their content.

Diesel additives won't help seal life.

Ok maybe not the seals just going on what he said, he has had an influx of pumps nissan and toyota 5 in total in the last month. All leaking has also found that the plates in the pumps are wearing beacause of the increased friction, he mentioned an additive that is not injector cleaner or anything like that (will find out what it was) some sort of additive that should prolong pump life 1ltr/1000ltr of fuel. I maybe wrong jsut thought i would mention it as i drive a transit and dont feel like forking out any extra coin on a pump i hope what he is telling me isnt true cause fuel is dear enough without adding additives.
cheers Ben