How did you remove your crank shaft bolt?

[Zoso]

I don't have any air/imact tools and the block of wood/breaker bar/starter motor technique is a bit "shadetree" for my liking.

(from bp's wepage)
http://www.esatclear.ie/~bpurcell/pulleyboltout.jpg

[sheepdog]

I took some angle iron (chunk of bed frame), cut a round slice out and drilled it for 2 crank bolts, my brother held that and I used a 2 foot breaker bar.

I am no fan of some of the shadier methods I have seen and this allows you to tighten as much as needed.

[bmwman91]

http://www.m42club.com/forums/showthread.php?t=1188

OMGF!!!11 use teh search function n00b

Good luck. it is a bitch. Pay the shipping and you can borrow my tool lol.

[Febi Guibo]

http://www.sirtools.com/bmwsirs-078.jpg

the M42 one is like $48 ...I say, we buy it, and rent it to our loyal membership as an income-producer for the m42club... who's with me?!

(denis, you need these... tell your mom they're like, giant barbeque tongs or something)

[ak96ss]

The Sir Tools website is perhaps the LEAST user-friendly page I have seen in a looong time. But, if that $48 is correct, I may just buy one anyway. Did you call them to get that price?

[Febi Guibo]

my bad.. for sale pages here:

http://www.gprparts.com/brands/sirtools/bmw.asp

[ak96ss]

Cool, thanks - BavAuto has it as well for the same price, and cheaper shipping to us on the right coast.

[dude8383]

Cool, thanks - BavAuto has it as well for the same price, and cheaper shipping to us on the right coast.

is this on their website?

[dude8383]

http://www.sirtools.com/bmwsirs-078.jpg

the M42 one is like $48 ...I say, we buy it, and rent it to our loyal membership as an income-producer for the m42club... who's with me?!

(denis, you need these... tell your mom they're like, giant barbeque tongs or something)

LOL, yeh i do need one of these. but how is that tool going to help to get the crank bolt off?

[ak96ss]

Yes, it is on their website.

This helps by enabling you to hold the crank in place while you remove the bolt... :)

[D. Clay]

If that breaker bar - starter motor and 2X4 is too shadetree for you, how about the SirTools piece. The instructions say that it rests on the frame rail too.
In an infinite universe, there is always another way!
With the engine at TDC a hole in the flywheel lines up with a hole in the block. It's visible if you're standing on the left side of the engine compartment. Of course there's a special BMW tool for this but a bolt works too.
http://www.sirtools.com/bmw_tools.htm
Click the picture in the above link - it's the pin at bottom center. For me the 2X4 on the frame rail/starter motor is the way to go. It's what we call the "quick and dirty" here.
439

[romkasponka]

you do not need any tool, just fit bolt in flywheel through hole in block (close to part #7 http://www.realoem.com/bmw/showparts.do?model=AF91&mospid=47256&btnr=11_1960&hg=11&fg=10 ).

[sheepdog]

you do not need any tool, just fit bolt in flywheel through hole in block (close to part #7 http://www.realoem.com/bmw/showparts.do?model=AF91&mospid=47256&btnr=11_1960&hg=11&fg=10 ).
That could be a big mistake if the bolt shears, and at 250 ft. pounds of torque, it very well could.

That was designed to find TDC of #1 cylinder, not hold the crank. If it were, BMW would not sell a tool for this purpose.

[romkasponka]

you can make same math and you will see what torque is not so big on bolt and after that you will see only litle bent bolt, but it'is far inough to shear it. Of course you can use 12,9 calass bolt..

[sheepdog]

you can make same math and you will see what torque is not so big on bolt and after that you will see only litle bent bolt, but it'is far inough to shear it. Of course you can use 12,9 calass bolt..

With a high quality bolt, you may get away with it, especially if the crank bolt was not properly torqued.

However, you are playing with fire.