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GQ 4.2 carby using alot of fuel

Tech Talk for Nissan owners.

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Posts: 32
Joined: Sat Oct 16, 2004 6:19 pm
Location: Newcastle NSW

GQ 4.2 carby using alot of fuel

Post by LET54B »

I have a 4.2 carby GQ and it is using a shit load of fuel. If I do 100km's it cost me about $50. Basicly what ever kay's I do it cost me about half that in fuel or more.

Any ideas why this could be happening?
GQ Patrol, TB42, 7" spring, 2" body and 37" MTR's, factory locker
and alot of cutting with the angle grinder!
GU Patrol, 2.8 turbo diesel Daily Driver
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Location: Adelaide, South Australia

Post by slowLux »

it's probly using so much cause 4.2 carbys use allot of fuel :P

I think they average around 23l/100km depending on how you drive.

How long ahve you had the car? has it happend before?
80 GXL
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Joined: Wed Nov 27, 2002 10:13 am

Re: GQ 4.2 carby using alot of fuel

Post by bogged »

have you done anything to try and change things?

like a service?
Posts: 1950
Joined: Mon Apr 18, 2005 2:15 pm
Location: While you were reading this I sent dirty text messages to your mum.

Post by Mowie »

What size tyres are you running?

Is the 100km reading off your odometer or a known distance?
[quote="chimpboy"]I might be reading that wrong, but it sounds like you are saying you want to come out of the closet and then rape my bottom or something..?
[/quote]
Posts: 32
Joined: Sat Oct 16, 2004 6:19 pm
Location: Newcastle NSW

Post by LET54B »

The fuel economy been getting worse over time, even after I gave it a service its still getting worse. I've got 37 inch tyres on it but they have been on it for about a year and a half now and thats a corrected km's reading. It does puff out black smoke when its cold, I'm not sure if thats part of the problem.
GQ Patrol, TB42, 7" spring, 2" body and 37" MTR's, factory locker
and alot of cutting with the angle grinder!
GU Patrol, 2.8 turbo diesel Daily Driver
Posts: 1950
Joined: Mon Apr 18, 2005 2:15 pm
Location: While you were reading this I sent dirty text messages to your mum.

Post by Mowie »

My TB42 was sucking around 23L/100km till I took it to a bloke who
knew how to tune it good. That got me back to a more respectable 17L/100km.
That was back in July and it is allready starting to get out of time again.
The old carby donks need regular tuning.

Are you still running a stock dizzy, ignition coil and leads?

Isn't it the case with TB42's that white smoke = OK
black or blue smoke = bad news :(
[quote="chimpboy"]I might be reading that wrong, but it sounds like you are saying you want to come out of the closet and then rape my bottom or something..?
[/quote]
Posts: 32
Joined: Sat Oct 16, 2004 6:19 pm
Location: Newcastle NSW

Post by LET54B »

I wish I got that economy! I've changed leads, plugs, all of the filters, points (although the points are nearly due to be changed again). I was thinking of getting a carby kit and getting a mate to rebuild it for me.

When its cold the fumes and smoke coming out of it burn the crap out of your eyes, like its just pure fuel.
GQ Patrol, TB42, 7" spring, 2" body and 37" MTR's, factory locker
and alot of cutting with the angle grinder!
GU Patrol, 2.8 turbo diesel Daily Driver
Posts: 98
Joined: Thu Oct 21, 2004 9:26 am
Location: Newcastle

Post by BundyBrumby »

I know it's a toyota, but about 4 months ago i bought a "reconditioned" carby, and it has helped fuel economy greatly. I can get between an extra 70 - 110 kms out of a tank ($55- $60).
I would also look at fitting electronic ignition.
YN65 X-Tra cab, 33's, 3" body lift otherwise stock. (the brumby got stolen)
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