7 replies to this topic

[Syma]

Ok this might be a stupid question but can someone please explain to me the best way to turn engine over by hand when it is in the car? Can't get a socket on the crank nut.

thanks

[Spider]

If the car is on the ground, you can put it in 3rd or 4th gear and push the car around.

 

Or, you can pull the plugs out and turn it from the alternator nut (as long as your fan belt is tight enough).

[kiwi topcat]

best way is to have a square piece of wood panel with 4 wheel lug holes and centre cap hole

jack up front remove one wheel fit piece of wood panel with the  holes in it

lower to ground

remove 1 spark plug

engage 4th gear

rotate the wheel with Tyre still on with

 

engine will rotate

[Syma]

If the car is on the ground, you can put it in 3rd or 4th gear and push the car around.

 

Or, you can pull the plugs out and turn it from the alternator nut (as long as your fan belt is tight enough).

ahhh 3 or 4th gear makes way more sense then 1st  thanks

[Syma]

best way is to have a square piece of wood panel with 4 wheel lug holes and centre cap hole

jack up front remove one wheel fit piece of wood panel with the  holes in it

lower to ground

remove 1 spark plug

engage 4th gear

rotate the wheel with Tyre still on with

 

engine will rotate

I think I understand what your saying. I will give try something like that.

Thanks

[nicklouse]

there are no crank nuts. just two bolts. ;)

[Bat]

Hi,

I don't know, I think there are a lot of crank nuts about!  

Cheers 

[Ethel]

 

best way is to have a square piece of wood panel with 4 wheel lug holes and centre cap hole
jack up front remove one wheel fit piece of wood panel with the  holes in it
lower to ground
remove 1 spark plug
engage 4th gear
rotate the wheel with Tyre still on with
 
engine will rotate

I think I understand what your saying. I will give try something like that.
Thanks

 

Basically, you're using the diff backwards. Instead of the engine turning the wheels, the wheels turn the engine.  Turning a wheel will turn the diff at the average rate of both wheels: The one on the floor does 0 turns, so 1 turn of the jacked up wheel (it can stay attached) gives half a turn of the diff. Multiply in the final drive ratio (around 3 to 1) and you'll get sixish turns of the raised wheel to one of the engine.
 
As it's a, flat cornering, Mini, jacking it up by cross member under the front seats (with a spreader board) will avoid both front wheels coming off the ground - or you could put a chock under one wheel and lower the car back on to it.

Did no one spot my deliberate mistake? 

 

3 turns of engine to one of diff means 1 turn of the wheel gives 1 ¹/₂  turns of the engine - in 4th gear.