Brake drums

[phillpot]

Fitted these to the Taimar today, I like 'em

[Astacus]

OOO are those "Alfins"?

[phillpot]

Astacus said:

OOO are those "Alfins"?

No, my budget won't run to Alfins, these are second hand Datsun

[GAjon]

Nice conversion, how on earth did you make the match? Are they a straight fit as original?

[Dollyman1850]

GAjon said:

Nice conversion, how on earth did you make the match? Are they a straight fit as original?

When we won the war and post the atomic bomb devastation of Japan we set up their car industry for the Japanese to get them back into work The first Jap cars were Austin devons made under license and the Japanese as a result often adopted Common UK threads and PCD's etc. The Datsuns adopted the UK 4.5 x 4 PCD.

A bit of useless info but there you go.

N.

[anonymous-user]

Very nice. Did the back played need modification?

Edited by V6Pushfit on Sunday 15th January 06:18

[phillpot]

GAjon said:

Nice conversion, how on earth did you make the match?

Can't rememberp to be honest, Think I "Googled" finned brake drums and these came up, said they were 9" and a bit more Googling came up with matching 4.5" PCD, from there I thought I'd take the chance!

GAjon said:

Are they a straight fit as original?

V6Pushfit said:

Did the back plate need modification?

Centre bore needed opening up a bit and had to tweak things a bit to clear backplates.

[GAjon]

Nice work, and also satisfying to know my dad didn't spend six years fighting the Japanese in India and Burma for nothing!

[anonymous-user]

By tweaking do you mea remove the lip?

[phillpot]

Once the centre hole had been opened out the drums very nearly fitted but were fouling on face marked with yellow arrow. Not having ready access to anything as useful as a lathe (I filed the centre holes out by bolting together back to back with a Triumph drum) I ground the lip off level with the fins, red arrow.
This may sound incredibly crude to some of you but I was then able to get an angle grinder in with one of those emery flap disc things and take a little bit off the yellow face, enough to get things spinning free.


May be one day I'll find a friendly little machine shop that can tidy the job up

Ebay link to new pair of drums to show suitable donors..... clicky

[Dollyman1850]

phillpot said:

Once the centre hole had been opened out the drums very nearly fitted but were fouling on face marked with yellow arrow. Not having ready access to anything as useful as a lathe (I filed the centre holes out by bolting together back to back with a Triumph drum) I ground the lip off level with the fins, red arrow.
This may sound incredibly crude to some of you but I was then able to get an angle grinder in with one of those emery flap disc things and take a little bit off the yellow face, enough to get things spinning free.


May be one day I'll find a friendly little machine shop that can tidy the job up

Ebay link to new pair of drums to show suitable donors..... clicky

Disgraceful….

[280i]

Take care what you buy from EBAY as far as drums. The link you posted are steel not aluminum. they look the part but weight a TON.

[timelord]

Proper TR Alfin drums have gone up in price since I bought mine, TR Shop do them for £235 a set, but they do go staight on.

[the other tim]

Expensive but definitely brake porn !!!!!!!

http://www.racemettleltd.co.uk/drum.html

Edited by the other tim on Monday 16th January 22:16

[anonymous-user]

the other tim said:

Expensive but definitely brake porn !!!!!!!

http://www.racemettleltd.co.uk/drum.html

In fact eye wateringly expensive!

[280i]

I have a brand new set of Brembo Alfins (for a 240z) ready to machine for my Vixen. I just have to find someone I can trust.

Edited by 280i on Monday 16th January 22:57

Edited by 280i on Tuesday 17th January 00:04

[Fiscracer]

phillpot said:

No, my budget won't run to Alfins, these are second hand Datsun

Probably better than Alfins then..... which is not difficult

[anonymous-user]

Interesting reading

http://www.gomog.com/allmorgan/datsunbrakedrums.ht...

[Dollyman1850]

Centre them on a lathe and put a touch tool on them then rotate by hand and see if you still think they are good??

If anyone has any old cast iron std rear drums they no longer use I will gladly have them.
N.


N.

[Dollyman1850]

Just going off topic slightly…Quick poll of members who do there own servicing….How evenly do your shoes wear??
I always seem to only wear 1 shoe per side??

N.