The engine sprocket can be a real pain to get of I have had the same problem a number of times, the solution I have found to work well is to use an impact driver at a low torque setting on the extractor nut, it works well and has the advantage that if you are not rebuilding the engine you don't have an issue with the heat damaging the crank oil seal. I must say that even though I have removed ten's of engine sprockets it still makes me jump when they finally break free.
I believe it's Whitworth. (I can't remember exactly but having looked at video No 6 of that nut being removed it looks like I'm using a Whitworth socket)
The engine sprocket can be a real pain to get of I have had the same problem a number of times, the solution I have found to work well is to use an impact driver at a low torque setting on the extractor nut, it works well and has the advantage that if you are not rebuilding the engine you don't have an issue with the heat damaging the crank oil seal. I must say that even though I have removed ten's of engine sprockets it still makes me jump when they finally break free.
Goodness me! You certainly know how to make us nervous 😮👍👏👌
😁😁😁
Bloody hell Chris, a bit of a tense moment there. Heat is your friend.
It certainly woke me up!!
Have you considered using you impact wrench. Mine has worked well for me.
what is the thread in the front sprocket?
I believe it's Whitworth. (I can't remember exactly but having looked at video No 6 of that nut being removed it looks like I'm using a Whitworth socket)