Don's Jimny

Havent really tried a top speed run lol.

I might invest in some AVM manual hubs, can always sell them on if the MPG / Power isnt really affected by the fronts being locked.

Painted my spare wheel black today. Not a brilliant job but better than it was!

Good
Today I changed one side of the signum front brake discs and hoovered out the jimny and signum while the wife flash dashed them

My friends Jimny gets 280-320 to a tank. You'd get 310 on a motorway run driving at 55mph ish and about 280 with general town driving. It's standard with no mods, so maybe thats why.

Whats this about locking front hubs? Could anyone explain this?
I've heard about this but I didn't know there was a way to lock/unlock the front hubs?
He's getting that mpg with just in 2WD.

Cheers.

The front hubs are vacuum operated, when they fail you cant get 4wd as the front hubs dont "select". So although the transfer box is sending power to the front diff, the front wheels arent engaged so arent working.

Some people fit manual hubs, others permanently lock the front hubs to the driveshafts. In this case, even in 2wd, the front wheels are turning the driveshafts / diff / propshaft. which causes more "drag" and will use more fuel and sap power... how much doesnt seem to be known.

doncarlyon wrote: The front hubs are vacuum operated, when they fail you cant get 4wd as the front hubs dont "select". So although the transfer box is sending power to the front diff, the front wheels arent engaged so arent working.

Some people fit manual hubs, others permanently lock the front hubs to the driveshafts. In this case, even in 2wd, the front wheels are turning the driveshafts / diff / propshaft. which causes more "drag" and will use more fuel and sap power... how much doesnt seem to be known.

Ah ok, and is the vacuum system breaking a common problem?
So if your vacuum system is working when in 2WD the front hubs should be fully disconnected?

My friend seems to have pulled out, what I think to be is a vacuume hose, it's routed under the rear arm. I pushed it back in and everything seems to be working 100% in 4WD and 2WD.

Cheers.

the vacuum hoses are on the front as its the front hubs that select not the rears. the rears are always engaged