While sorting out the bonnet latch one of the bolts snapped. How can I sort this please. There is no part of it sticking out it snapped flush to the metal.

Thanks

Jonathan

 

I have had success using a centre punch on one edge, creating a little dent in the bolt thread, say at 12 o clock then tapping it round

If the thread is rusted it may be harder, weld a nut on worst case or stud extractor

 

Will a Cheap centre punch from Screwfix do?

 

yeah as you might ruin it anyway if the bolt is high tensile

a wheel bolt on my BM snapped, i assume from being overtorqued, got it out like this but ruined the punch.. they are very hard

 

Or just take it to a local garage, they are used to doing stuff like that, probably for a beer.

 

Anyone know the size of the large tension spring in the bonnet latch please

 

I would suggest a stud extractor, sometimes known as an "Easy-Out". In essence, it's a tapered screw but with a left hand thread. You drill a small pilot hole in your broken bolt, say 3mm diameter depending on the relative sizes but could be up to 6 or 7mm for larger bolts, then screw in your Easy-Out (remember, it screws in anti-clockwise). Normally they have a square head or similar so you can drive it with a small socket. As you keep turning anti-clockwise the left hand thread will bite into your broken bolt then suddenly lock the two together at which point it starts to remove your broken/snapped off stud or bolt.

Any decent engineering supplier will keep them, and plenty available from online stores.

Best of luck (I would say happy screwing, but that could be taken out of context - and this is a family show)

 

Struggling to find the large tension spring I need, anyone help me please

 

I bought a whole new latch, it was pretty cheap. Lings has it for less than £50.

 

When I have enquired it's says it is £87. Reluctant to buy the whole thing just for a spring.