[Healeys] Locking Crank

[Harold Manifold]

Hi All,

There is an official BMC tool designed to remove the starting dog nut
without needing to lock the crankshaft. It is referred to as a "shock type"
spanner (part number 18G391), which, as others have suggested, is used by
striking it with a hammer.

Please see the attached image.

Best regards,
Harold Manifold

On Thu, Apr 9, 2026 at 5:31 AM JSARCH <jmsdarch at sbcglobal.net> wrote:

> I recommend that you replace the locking washer with a new one while you
> are doing the work.
>
>
>
> John
>
>
>
> *From:* Healeys <healeys-bounces at autox.team.net> *On Behalf Of *
> kags at shaw.ca
> *Sent:* Wednesday, April 8, 2026 11:29 AM
> *To:* simon.lachlan at alexarevel.plus.com; 'Roger Grace' <roggrace at telus.net>;
> 'Healeys' <healeys at autox.team.net>
> *Subject:* Re: [Healeys] Locking Crank
>
>
>
> Roger:
>
>
>
> As Simon says, best bet is an equivalent to the factory ‘slugging wrench’
> tool.  No need to access the crankshaft or flywheel. I bought a cheap combo
> wrench years ago to do this – can’t remember the measurements, and it’s at
> Mike Owens shop.  I can check the specs for you, or you are welcome to use
> it if you are not in a big hurry.  Feel like a ferry ride?
>
>
>
> Cheers   ---   Earl
>
> *From:* Healeys <healeys-bounces at autox.team.net> *On Behalf Of *Simon
> Lachlan via Healeys
> *Sent:* Wednesday, April 8, 2026 9:20 AM
> *To:* 'Roger Grace' <roggrace at telus.net>; 'Healeys' <
> healeys at autox.team.net>
> *Subject:* Re: [Healeys] Locking Crank
>
>
>
> If(!) my memory t serves me right, you can take the sump off and jam it
> with a piece of wood.
>
> Otherwise, maybe get something to lock the flywheel. Per attached. I used
> this for work on the clutch but should do the job?
>
> Years ago, I put a massive spanner on the nut and clouted it with a big
> hammer. Yes, the crank moved but the nut surely tightened up. It is an
> absolute beast of a spanner…open-ended, just one end. Heavy as anything,
> looks like something out of a Challenger tank’s toolkit.
>
> Have fun. Simon
>
>
>
>
>
> *From:* Healeys <healeys-bounces at autox.team.net> *On Behalf Of *Roger
> Grace
> *Sent:* 08 April 2026 16:05
> *To:* Healeys <healeys at autox.team.net>
> *Subject:* [Healeys] Locking Crank
>
>
>
> Had a bit of a mishap with my BJ8 engine that is installed in the car.
>
> Drive shaft and gearbox in place and tunnel off.
>
> Need to re-tighten the crank nut.
>
> So how is the easiest way to lock the crank ?
>
> Is it safe (no damage) to lock the prop shaft flange and in 4th gear ?
>
> Thank you
>
> rg
>
>
>
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