Bell housing to gearbox - torque spec?

[SteveHall64Healey]

Gents, does anyone know what the torque spec is for the bolts connecting the bell housing to the gearbox? I have an old manual the specifies 'bell housing bolts - 420 in-lbs.', but I think this may refer to the bell housing to rear engine plate bolts.

Thanks
Steve

Phase 1 BJ8

 

[Healey Nut]

Use my favourite method , get you wife to count the veins in your forehead or neck as they stand up . 3 veins is cylinder heads , 2 veins , lug nuts , 1 vein covers all other stuff .
1 vein should cover you on the gearbox/bellhousing .

Ok seriously now . The only thing I use a torque wrench for is cylinder head bolts and lug nuts . My torque wrench is built into my right forearm .

 

[Keoke]

That is about right it is close to 35 Ft-LBS.

 

[Randy Forbes]

When all else fails, look up the specs for the size/grade bolt you're using.

Took only a few seconds to find this one: https://www.imperialsupplies.com/pdf/A_FastenerTorqueCharts.pdf

 

[DerekJ]

i seem to remember fastening mine without a torque wrench and I never had a problem. however its best to do things by the book, although off the top of my head I can't remember if these bolts have torque recommendations or not.

One thing to remember when torquing is that over 50% of the torque applied goes to overcoming the friction in the threads. Therefore it matters, what and how much, lubrication is used on the threads. The torque recommendations should stipulate whether they refer to dry or oiled threads. i'd be more concerned if I was flying an aeroplane.