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15th July 2023, 10:36 PM
#1
Fuel Consumptions TB42 GQ
HI guys, just a quick question, why is the GQ TB42 carby use half a tank to travel about 100kms but if u tow a trailer like car trailer or van loaded it uses 1/4 of the tank? is there somthing different in the tune side, or a module somewhere altering the system, or the mechanically way its built, ive searched and found nothing about it, so thought id ask you guys here thanks have a great and safe day
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15th July 2023 10:36 PM
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15th July 2023, 11:53 PM
#2
Patrol God
Sounds a bit back to front, but check your fuel pump pressure and filter or fuel lines for a restriction. I've seen heavy fuel usage in my EFI falcon when the filter was nearly blocked.
My advice is: not to follow my advice.
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16th July 2023, 06:56 PM
#3
i would thought that also matey, checked them, and everything is fine with no missfires,backfire,slugish on power or anything, its just uses more fuel without towing somthing heavy, and i can never figure it out, and its the same way on my dads Nissan Navara D22 1997 QD32 Duel Cab
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16th July 2023, 07:28 PM
#4
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16th July 2023, 07:34 PM
#5
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How’s About using your hidden Knowledge to potentially Help out a Young Bloke/Lass in Time to come here Brother……’EGO CAN be a dirty SkyHook’
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16th July 2023, 09:19 PM
#6
hahah thanks everyone, just thought to try and understand why this happens, could there be somthing in the tuning of the engine, or the way the carby is or even a module placed somewhere that alters somthing, or even the timing of the engine, that makes it perform better at a certain degree angle under load, that makes it more efficient when pulling
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16th July 2023, 09:40 PM
#7
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17th July 2023, 01:27 PM
#8
Patrol God
Maybe check the vacuum advance diaphragm. If it has a hole or small tear, it might only be doing half a job.
My advice is: not to follow my advice.
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17th July 2023, 11:39 PM
#9
Patrol Guru
Originally Posted by
mudnut
Maybe check the vacuum advance diaphragm. If it has a hole or small tear, it might only be doing half a job.
Nice catch Mudnut. This makes sense as an engine with less of an advance surelly burns fuel worse than a properly advanced one. If for whatever reason the vacuum advance is working under heavy load but not at light load, that could be it.
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18th July 2023, 10:57 PM
#10
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