Volvo MD2B - How to separate from propshaft

[gavin400]

I am trying to separate MD2B gearbox from prop shaft coupling - it is connected with 4 studs/bolts?, but these are round so cant get a spanner on them

I cant get access from behind to have a better look, but they may have allen key heads? - have tried taking a photo but it is inconclusive

Does anyone have any experience with these

Many thanks

Gavin

 

[PeterWright]

As you suspect these are socket head cap screws, but they will be done up very tight. The best tool will be a square drive hex tool which you can turn with the Tommy bar from your socket set - much kinder on your hands than a traditional Allen key, so you can apply a lot more torque.

Peter

 

[gavin400]

As you suspect these are socket head cap screws, but they will be done up very tight. The best tool will be a square drive hex tool which you can turn with the Tommy bar from your socket set - much kinder on your hands than a traditional Allen key, so you can apply a lot more torque.

Peter

Thanks Peter,

You wouldnt know the size?

 

[scottie]

Usually a set is reasonable investment rather than buying individual

 

[pandos]

Usually a set is reasonable investment rather than buying individual

My bolts are 10mm and I used a cut piece from an ordinary Allen key slipped into a 10mm hex socket...

 

[Bilgediver]

Does anyone have any experience with these

On my boat I usually loosen the pinch bolt on the collar of the shaft coupling and draw the prop aft. It is reached from above and I have a hatch in the cockpit for access .