M46 transmission removal. Any tips?

woza · May 19th, 2011, 09:58

hi all. anyone got any last minute tips on removing and refitting a m46 tranny in a 1980 240? Its my first go at doing one. removed the auxillary components. about to remove the transmission support . Any tips on getting to the top bolts on the bell housing? or anything else would be much appreciated! cheers!

warren

Mike_Brace · May 19th, 2011, 14:30

This album shows box removal in detail. A couple of wobble extension bars are the secret to getting the bell housing bolts from underneath. It is a heavy lump and will need two to lift. It is easier over a pit or on a hoist but do-able on car ramps. I really should do this write up from the pictures. Don't let the times above the pictures put you off. That is for the experts!
Mike

Clifford Pope · May 20th, 2011, 08:06

As with any gearbox of course, you appreciate that it is vital not to hang it unsupported on the gearbox input shaft. This is easily done, especially if you are busily engaged in levering a stuborn bell housing off the studs in the block and it suddenly frees and shifts back a couple of inches.

It's worth checking the gearbox input shaft seal while you have the box off. Leaking oil can come either from the engine or gearbox. The seal likewise can be damaged if the gearbox is allowed to hang on the shaft.

May 19th, 2011, 09:58	#1
woza New Member Last Online: May 19th, 2011 14:28 Join Date: Apr 2011 Location: sydney	M46 transmission removal. Any tips? hi all. anyone got any last minute tips on removing and refitting a m46 tranny in a 1980 240? Its my first go at doing one. removed the auxillary components. about to remove the transmission support . Any tips on getting to the top bolts on the bell housing? or anything else would be much appreciated! cheers! warren

May 19th, 2011, 14:30	#2
Mike_Brace Former contributor Last Online: Yesterday 09:52 Join Date: Dec 2004 Location: Rhosgoch, Anglesey	This album shows box removal in detail. A couple of wobble extension bars are the secret to getting the bell housing bolts from underneath. It is a heavy lump and will need two to lift. It is easier over a pit or on a hoist but do-able on car ramps. I really should do this write up from the pictures. Don't let the times above the pictures put you off. That is for the experts! Mike __________________ A Volvo is for life not just for Christmas!

May 20th, 2011, 08:06	#3
Clifford Pope Not an expert but ... Last Online: Yesterday 09:57 Join Date: Dec 2001 Location: Boncath	As with any gearbox of course, you appreciate that it is vital not to hang it unsupported on the gearbox input shaft. This is easily done, especially if you are busily engaged in levering a stuborn bell housing off the studs in the block and it suddenly frees and shifts back a couple of inches. It's worth checking the gearbox input shaft seal while you have the box off. Leaking oil can come either from the engine or gearbox. The seal likewise can be damaged if the gearbox is allowed to hang on the shaft.

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