fbekholden.com

(Rosco),

The VH40 brake booster is a little off-topic, but Harv will forgive the digression -
The tricky bit with disassembling the VH40 is the round locknut which holds the diaphragm disc onto the pushrod. It's staked with a centre-punch, so a light touch with a drill on the stake marks makes it easier to unscrew the nut. Take the retaining band off, remove the backshell, release the diaphragm rubber and ease it off the round locknut. Drill the stake marks lightly. Now for the hair-raising bit: two pairs of multi-grips. Wrap the jaws of one pair well with tape. Ease that pair of multi-grips in between the coils of the return spring, and grip the pushrod as close to the disc as you can. Hold on tight, mutter your favourite invocation, and loosen the locknut with the other pair of multi-grips. You don't want to put jaw marks in the pushrod. After this, it's just like servicing a master cylinder.

Rob

Thanks Rob,
much appreciated - I have not yet been able to source a repair kit with the rubbers for the VH40L.
I am of the belief that you have managed to locate a supplier?

And, I do very much hope Harv will excuse me for stomping all over his thread for this extraneous dialogue we have opened within it.

frats,
Rosco

(Rosco),

It was >20 years ago that I last did up a VH40, and Burt Bros were able to source the parts. Have you tried Werribee Brake and Clutch? Or perhaps Auto Surplus? I don't know much about where to get parts in Melbourne . . .

Rob

Thanks Rob,
no - haven't got really serious about doing the now "spare" one up.... be nice to have the parts ready though.
When I tried to have it done up by the brake specialist - he told me that he had never done one... and wasn't confident that he'd be able to get parts... he could not find any reference to a kit or listing for the unit in his computer or his service manuals.... I sourced a replacement unit after learning that. If anyone was going to "learn" how to do the job, it wasn't going to be him... with me paying for it as his learning excercise...

Thanks again, will report back when I get onto this... might even open a new thread - think I had one going in here many years back at the time.... might chase that up and keep it rolling again..

Thanks Rob, again - aps to Harv.....

frats,
Rosco

All good. I've got a VH24 sitting on the bench that needs doing too. Managed to source a diaphragm, just need to find the time to tackle it.

Cheers,
Harv

I believe the 24 to be a smaller unit, Harv?.... I have no idea what the numbers mean, but perhaps something to do with capacity of the vacuum chamber?

Let me know if you make a start first - I'd be keen to see some pix as you tackle it.... I can assure you - I will do likewise if I beat you to it.

frats,
Rosco

just back talking about drums, do the brake shoe anchor pins go through the baking plate?

Yes. Insert pin from behind through hole in backing plate. Should be a corresponding hole in the shoe. Press spring over the end of the pin. You can turn the pin from the back by pressing on the flat end with your finger and rotating so the pressed lugs engage and hold the spring on compression.


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