Hi Max
tlc_4play has swapped his diesel engine (B-series) for a petrol engine (F-series).
He is simply expressing his opinion that the B is "a boat anchor" and the 2F is "bulletproof" (and I doubt many in the diesel section would agree).
If you bought a BJ40 I would hazard a guess that you want to stick with running a diesel. (I know I do.)
Your engine code should be cast into the LH-side of your block like this:
(Here you can see the letter B on my block.)
I think Dan would agree with me that tlc_4play has done an extremely dastardly deed by swapping his diesel for petrol. But it's probably not his fault. It may be something in the South African climate because tmarx (who lives somewhere over that way too) has just done the same thing with his BJ42 (which IMO can't really be called a BJ42 anymore without being a diesel).
When the BJ40 model left the factory, it left with what's called "open diffs". In this state, each axle (front or rear) stops driving the vehicle forward if just one wheel loses its grip on the ground. So two wheels losing traction represent a stuck vehicle.
When you fit a diff lock to an axle (and engage it) you force both wheels on that axle to turn (as the driveshaft leading to that axle turns) regardless of whether the wheels have traction or not. (One wheel can be in the air, yet it will continue to rotate at the same speed as the one remaining on the ground.) This means that loss of traction on one wheel doesn't "put the whole axle out of action" (as it does with open-diffs).
The end result is that it is far harder to get stuck when you have diff locks fitted. (Or another way of saying this is ... When you DO actually get stuck you are in far more deep sh#t.
) The only negatives are cost and the tendency for diff locks to make your vehicle very skittish. (Skittish-behaviour is experienced mainly only from having your front diff locked.)
By "skittish", I mean when one wheel on the axle suddenly loses traction under full power, the driving wheel (ie. the one still gripping the ground) will violently try to turn your vehicle off the track (which can have disasterous results if it sends you over a cliff).
The best diff locks can be engaged and disengaged by the driver in the cab and can be either air-operated (necessitating an on-board air compressor) or electrically operated.
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