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Bigger Tyres = Less Power? More Fuel?
Posted: Mon Oct 15, 2007 11:00 am
by burtbunch
Hi All,
Quuestion: I have just fit 31x10.5x15 muddies to my NH 2.5TD. After recently spending a lot on the engine to recover lost power I have now lost power and fuel economy. About 100k's per tank!! And the dreaded black smoke is back again!!. Will my new tyres contribute that much too fuel economy and Power? I think the black smoke points to something more sinister...
More time on the hoist I think..
Burty
Posted: Mon Oct 15, 2007 11:57 am
by NJV6
Sounds like a turbo issue. Something is definatley not right, your 31's would have made bugger all difference.
Posted: Tue Oct 16, 2007 8:36 am
by constapa
Black smoke = Wrong fuel mixture.
100 km's per tank = Wrong fuel mixture (or a hole at the tank
)
Man, this an insane consumption...
Posted: Tue Oct 16, 2007 8:43 am
by burtbunch
No mate,
I lost 100 per tank. I'm down to 500 from about 600 around town. Crikey 100 per 80 litres jeez I'd have to be an oil Baron!!
Posted: Tue Oct 16, 2007 10:48 am
by psycronic
still could be an over fueling problem
Posted: Tue Oct 16, 2007 11:47 am
by burtbunch
Yeah, I just got back from the workshop that fixed it. They reckon I got dirty fuel. And Embarrassingly I had a slightly blocked air filter element. (Beach Driving)!!! New element hasn't made too much difference tho so I will see what happens with the fuel. I'm only buying BP from now on.
Cheers
Burty
Posted: Thu Oct 18, 2007 11:41 am
by j-top paj
burtbunch wrote:Yeah, I just got back from the workshop that fixed it. They reckon I got dirty fuel. And Embarrassingly I had a slightly blocked air filter element. (Beach Driving)!!! New element hasn't made too much difference tho so I will see what happens with the fuel. I'm only buying BP from now on.
Cheers
Burty
run a tank of b100 biodiesel to clean it out..
i used to run bio in mine and it made heaps of difference
Posted: Thu Oct 18, 2007 12:29 pm
by burtbunch
righto. New air filter made a little difference. Fuel Filter going in tonight. Where do I buy Bio Diesel?
Burty
Posted: Thu Oct 18, 2007 12:42 pm
by j-top paj
not sure where in QLD but there should be a few places that sell it by now..
there is a bio diesel forum that lists all the servos that sell it in oz.
cant remember the name of the forum but.