E30 Zone

I am replacing my M40 timing belt. how do i set the timing correctly, is there timing marks or something?
any feedback would be helpfull.

Thanks,

Colm.

nope make a cam lock tool {slot in end of camshaft at front is in line with the head face}
crankshaft is locked via hole above starter on block{usually has a bung in it to seal debris} goes through block and flywheel type.

gcorky wrote:nope make a cam lock tool {slot in end of camshaft at front is in line with the head face}
crankshaft is locked via hole above starter on block{usually has a bung in it to seal debris} goes through block and flywheel type.

Don't know what M40 you've got geese but mine's got Timing mark's
Other than that, make some mark's

Don't know what M40 you've got geese but mine's got Timing mark's
Other than that, make some mark's


i aint got one but have done em on e30 /e36 and the cam pulley is not located to camshaft (has scope to alter timing slightly)and someone in past has probably punched it up which is ok as long as head/gasket heights arnt altered i.e skim /thicker gaskets etc....if so cam and ignition will be incorrect for obvious reasons

cheers lads

M40.....Timing Belt.......??????

I thought the M40 was chain driven.........

M40 is belt driven wrongness

The tools are not 100% required, but be careful with tension as its critical....

Well thats my new bit of info for the day.......!!

kam-325i wrote:M40.....Timing Belt.......??????

I thought the M40 was chain driven.........

M42 is Chain driven geese