Alloy valve collars not A7/10

[muskrat]

For sale.
Alloy valve collars X 4. Not sure what they fit, was told 67-1349 but can't find that # anywhere.
Once again I should check before buying  .
They measure 1.196" OD, 0.805" outer spring ID, 0.705" inner spring ID, 0.435" thick, 0.410" D at sml end of taper, 0.550" at lge end of taper.
If you can identify and want them = FREE post.
$20
Cheers

[saltbox Alf]

Hi, I bought a "big valve head " from the US and it was fitted with the same valve collars, very tasty looking!
No numbers on them anywhere. Slight problem I found with the head was the valves fitted were about 1/4 inch longer than standard, also the big inlet valves did not fit the seats!! as the head is a RR with smaller seats, oh dear sold a pup! well not really as it's still a good head and I have some valves that fit the holes!
I presume that the head was being worked on and the valves were put in as a guide, then left for some reason in the back of a shed, till I got it.

[muskrat]

 Yes, know what you mean. I got a twin carb head, didn't notice in the pictures that the top fin on both sides were missing, neatly cut off all the way around, and one guide hole was 1/8" bigger than the others. Might fix it one day, or put it in here for someone else to play with. At least I'll tell'em.
Cheers

[trevinoz]

Hi Musky,
                     Have a look at this page for those collars.

Trev.

[saltbox Alf]

That would be them.
Question, any idea as to the free length of the valve springs?
The springs that came with my cyl head are shorter than standard and smaller diameter.
1.86 height, 1.32 width, .158 coil dia
inner springs. 1.46 height..937 width. .119 coil dia
The alloy cap fits exactly on these but seems a little smaller than standard collet retainer.
Are these racing springs ?
Not scientific but I enlarged the picture to the same size as the springs and the coils match perfectly and the caps also
Any thoughts please

[muskrat]

 Thanks Trev. If that's them they need different collets as well. The tapered hole for the collets is much bigger than for the std collets of the A10 iron or A7 alloy heads. Also the std A7SS inner spring won't fit on it's spot.
 Might have to polish them up and use them on trophy's for this years show.
Cheers

[chaterlea25]

Hi All,
I have a set of those alloy collars, collets etc, I have not checked the part numbers but I am led to believe from the Eddy Dow tuning leaflets that they are "Gold Star" parts

HTH
John

[muskrat]

 G'day John. Just checked the #'s of the collets from Trev's info page and they are 500 Gold Star. I thought the valve stem of goldie valves were thicker.
Cheers

[chaterlea25]

Hi Musky,
The early ZB engines had thicker valve stems I think the same as B31/33 ??  11/32 ??? 3/8???
The later big fin engines have both valve stems 5/16ths dia.
I'm not sure when the change over came about,
Cheers
John

[trevinoz]

Hi Musky,
                    Now that you know what they are, are they still free? 

Trev.

[edboy]

hi all, check out the mike pemberton article in february c.b.guide. he claims the 4.2 jaguar engine uses 5/16" valves and caps and collets are interchangeable with bsa a50/65 and goldstar engines. a handy source for spares?

[chaterlea25]

Hi All,
Ed, I believe Mike uses the Jag valves as oversize units for his radical engines
Late Goldie valves are much longer than the A65 /A10 valves
On interchangeability I found that A65 valve are almost identical in length and head size to the valves I needed for my Blackburne 350ohv engine, I had to make guides to suit the 5/16 stems and new caps to use BSA collets and the Blackburne springs.
I also have a BSA L25 350 ohv (1925) which has very large headed valves for its size, I am using Goldie inlet valves, shortened and a little taken off the exhaust valve head, again new guides to suit
The Goldie inlet valves are made from austenitic steel (Jessops G2 or KE965) ?? and are the same material as exhaust valves

Cheers
John

[muskrat]

 Thanks for the info fellas. Looks like they would need goldie springs as well as my inner spring won't fit over the center boss of the keeper.
Trev, " If you can identify and want them = FREE post. " Do you want them?
Cheers

[trevinoz]

G'day Musky,
                           If you really still don't want them, I think that they would go well in my RGS engine when I get around to rebuilding.

Trev.

[muskrat]

Their yours Trev. Will post'em up Monday. I think I still have your address.
Cheers