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 Post subject: Baulk rings
PostPosted: Sun Jan 18, 2015 8:18 am 
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Just going through some parts for my gearbox rebuild and I have 2 different types of baulk rings. One has more cutouts on the cone side than the other. Is one better then the other?
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 Post subject: Re: Baulk rings
PostPosted: Sun Jan 18, 2015 1:36 pm 
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The one on the right is lighter!

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 Post subject: Re: Baulk rings
PostPosted: Sun Jan 18, 2015 5:47 pm 
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Hi Mini0998
The one on the right is a better one to use, and a better design,thats how BMC made the original one's with the little butter fly's on them if I use late model ones like the one on the right I use my little die grinder to cut more slots in them, the original ones had 12 slots in them,but once again it is cheaper to make them with less slots.
Graham Russell

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 Post subject: Re: Baulk rings
PostPosted: Sun Jan 18, 2015 8:29 pm 
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Why are the groves good? oil flow?

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 Post subject: Re: Baulk rings
PostPosted: Sun Jan 18, 2015 8:45 pm 
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The grooves there are like grooves on a tyre. They displace the oil in between so the baulk ring can grip the gear's cone, essential for gear speed matching (ie no gear grating during shift).

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 Post subject: Re: Baulk rings
PostPosted: Sun Jan 18, 2015 8:52 pm 
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Location: Under the bonnet son!
Are these grooved the main reason for the preference for the old baulk rings over the new ones?
Oncethe grooves are replicated in the new ones, do they operate more or less identically?

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 Post subject: Re: Baulk rings
PostPosted: Sun Jan 18, 2015 9:18 pm 
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GR wrote:
Hi Mini0998
The one on the right is a better one to use, and a better design,thats how BMC made the original one's with the little butter fly's on them if I use late model ones like the one on the right I use my little die grinder to cut more slots in them, the original ones had 12 slots in them,but once again it is cheaper to make them with less slots.
Graham Russell


Thanks for that.

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 Post subject: Re: Baulk rings
PostPosted: Mon Jan 19, 2015 8:47 am 
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Mick wrote:
Are these grooved the main reason for the preference for the old baulk rings over the new ones?
Oncethe grooves are replicated in the new ones, do they operate more or less identically?


Mick...I think its more about the quality of the metal faces...which I believe the Doc (for instance) tends to clean up the profile of originals if they are in good condition rather than use the new rubbish.

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 Post subject: Re: Baulk rings
PostPosted: Mon Jan 19, 2015 10:26 am 
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Mick wrote:
Are these grooved the main reason for the preference for the old baulk rings over the new ones?
Oncethe grooves are replicated in the new ones, do they operate more or less identically?


The very best Baulk Rings are those with more cross cuts and the butterfly cuts on the outside, as Graham said.
The next best is the ones with more cuts but does not have the butterfly cuts on the outside, then the ones with less cuts but a darker metal, I am yet to be convinced that any of the new baulk rings avail today are any good, my opinion only,

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 Post subject: Re: Baulk rings
PostPosted: Mon Jan 19, 2015 3:07 pm 
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If buying new baulk rings, take a gear with you, try the ring's fit on it.
If they rock about in 1 plane (oval) or in both planes (wrong taper angle) don't buy them. By the time they are bedded in they will be worn out.
I have 4 here I bought a while back, can't recall who from (probably in UK), they are so poor a fit I won't use them.

However I have bought some from Karcraft and Minis Plus last year that worked well. On the road... not racing.

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 Post subject: Re: Baulk rings
PostPosted: Mon Jan 19, 2015 3:57 pm 
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drmini in aust wrote:
If buying new baulk rings, take a gear with you, try the ring's fit on it.
If they rock about in 1 plane (oval) or in both planes (wrong taper angle) don't buy them. By the time they are bedded in they will be worn out.
I have 4 here I bought a while back, can't recall who from (probably in UK), they are so poor a fit I won't use them.

However I have bought some from Karcraft and Minis Plus last year that worked well. On the road... not racing.


I buy them from exactly the same supplier as the People you mention above, but I am afraid I do not have the confidence in them that You seem to Have Kev, As I said before though it is only My opinion. I do sell them to people that want New baulk rings, But only after I have advised them of my concerns, I have had New baulk rings in genuine Rover packs that failed in a very short period of time. so when that sort of thing happens it leaves me with some concerns

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 Post subject: Re: Baulk rings
PostPosted: Mon Jan 19, 2015 6:37 pm 
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Location: near Baulkham Hills, NSW
You can extend life of good (not yet worn out) older baulk rings by surface grinding .020" off the face that goes toward the gear. However eventually you run out of good ones and have to buy new from somewhere. As I said in my post above, check the fit of what you are buying. Some are better than others.
If they don't fit right, don't buy them.

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 Post subject: Re: Baulk rings
PostPosted: Thu Apr 12, 2018 10:08 am 
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Please identify this unusual marking on the outer side of this baulk ring, there are 6 in total.

Attachment:
Mini Baulk Rings 001.jpg


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 Post subject: Re: Baulk rings
PostPosted: Thu Apr 12, 2018 1:53 pm 
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Would they be the "butterfly" cuts as mentioned above?

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 Post subject: Re: Baulk rings
PostPosted: Thu Apr 12, 2018 3:17 pm 
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I think I have rated them correctly.

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Mini Baulk Rings 003.jpg
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Mini Baulk Rings 002.jpg


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