Dog gear

Hi chaps,
I was wondering.... is it possible to fit dog gear to a 2.5 petrol engine so I can use a starting handle?

if you could find one from a moggy minor and modify then maybe

landrover11019 said:

Hi chaps,
I was wondering.... is it possible to fit dog gear to a 2.5 petrol engine so I can use a starting handle?

Click to expand...

Your chances of starting a 2.5 petrol Landy by a crank-handle are about ZERO, but your chances of a severely double fractured forearm are about 99%.

That's why they don't fit the crank-handle-dog to these engines.

And another thing .... how big are you? If you are even one size less than King Kong, you won't be able to turn it over anyway.

Charles

CharlesY said:

Your chances of starting a 2.5 petrol Landy by a crank-handle are about ZERO, but your chances of a severely double fractured forearm are about 99%.

That's why they don't fit the crank-handle-dog to these engines.

And another thing .... how big are you? If you are even one size less than King Kong, you won't be able to turn it over anyway.

Charles

Click to expand...

so very true, i worked with a guy who was 7ft 12 " and was a farm worker from glasgow, he had a socket on the end of a 1/2" socket driver brace , he thort he would also turn a 2.5 petrol over by hand,

he stuck the socket on the bar, then shoved it thru to the crank pully, considering the 109 had not moved fer years, he went for it, woooof the socket brace spun round and the socket flew off, he had cracked the socket down the side and put a nice twist on the brace, but not moved the engine,

so yup they dunt put a starter dog on a 2.5 , but am sure one off a 2.25 would fit?

glad it didnt fire tho, would of busted his arm at the least :doh:

Are they really that much harder to start than a 2.25?
Could be fun trying

cant be any worse than startin an old petter diesel

Would it not be easier to find a hill and drop the clutch, or carry a spare battery?

Hand cranking a 2.5 petrol engine is insane to put it mildly as, as i'm sure your aware there is no way of decompressing it (unless your planning on getting somebody to screw in spark plugs and the screw them back in and connect the HT cable up within a split second) - don't try this

Obviously the compression ratio is much lower, buts it's still a huge amount of force going to be required and a lot of momentum to pick up in what will be less than 1/2 turn of the crank shaft before you hit a lot of resistance.

I guess you could decompress 1 (maybe 2) cylinders, and then try and start in on 3 cylinders, and then screw in the plugs and connect the HT cable while holding it with a thick bit of rubber (don't do this)

Best options if its flat - 1) Hill, 2) Find a new battery 3) find somebody with a diesel one to tow you to a charger.

I have seen it done many times by a friend of my dads years ago mid winter snow on the ground. It didnt seem any harder than the 2.25 but hey I was only a kid. My dad used to start his modified 2.25 that compression ratio was silly he took the head right down when the engineering firm asked him they had to ask 3 times to confirm how much to take off because it was so much. He used to start his by hand somtimes in winter if he was early for work. I remember my dads mate also tried to start a diesel but dont recall him actually starting it. Thumbs were a constant worry but nobody actually hurt themselves bad enough for any medical attention.