Undoing oil sump bolts.?

[Art b]

hi guys 

now removing sump bolts is usually a simple task, 

but these are so tight the Allen sockets are turning in the bolts,
surely these bolts are no usually so tight...

any suggestions ?

[geoff]

Are the bolts now rounded ?

[cancunia]

Gentle persuasion using an impact driver with an Allen bit perhaps. Maybe some heat on the bolt heads.

[Art b]

Are the bolts now rounded ?

no.. but I can feel the bit moving without the bit turning..
so its getting close ..

[Art b]

Gentle persuasion using an impact driver with an Allen bit perhaps. Maybe some heat on the bolt heads.

I don't have an impact driver..
I have a blow lamp...

theres a bloody lot of bolts...

[frank]

i always hammer a torx (stardrive) bit in

[polar]

Get the allen bit in the bolt and give it a bang with a hammer to shock it - if not heat and a bang with the hammer.

[Art b]

i always hammer a torx (stardrive) bit in

Yup... I can see it coming to this...

[Art b]

Get the allen bit in the bolt and give it a bang with a hammer to shock it - if not heat and a bang with the hammer.

I had a little go like that , no joy..

[Romahomepete]

I recently had to replace a corroded sump. Ireplaced it with an alloy sump and had to buy new longer bolts. They cost more than the sump. M7 an odd French automotive size. I undid the old ones by giving the Allen key bit a sharp tap to make sure it was started properly and to shock them.

I now have a spare set of used sump bolts for a steel sump.

Peter