Rocker box gaskets

[TT John]

Hi All.
Now, I know that a lot of you have problems sealing the rocker box and making it oil tight and I have seen one bike that the owner has left out the gaskets altogether and sealed the offending article with Loctight 512 or some product like it but, he had to grind a bit off the tappet adjusting screws to clear the cover, now what about some solid copper gaskets to make this job easier? I know the ordinary gasket off the shelf move about and its usually a bugger to get them correct and you do need the space between head and rocker box, so I am off to the solid copper gasket guy today, to see what price he can knock me up some solid ones, these are cut out by water jet, if the price is o.k. I will get some made to see how they act, It just might solve one problem.
I would like to know how many of you would be interested in buying these, so let me know.

Kind regards TTJohn

[bsa-bill]

Read here John http://www.a7a10.net/forum/index.php/topic,3385.0.html

I had trouble with mine and intend to try copper gasket, meanwhile I have cured the problem by making my own gaskets with gasket card and making them so that they fit and cover all the mating surfaces

[muskrat]

 Yep, I put a set on the '51 a while back and haven't had a leak Yet!
http://www.coppergaskets.us/  Lani is his name.
Cheers

[Duncan R]

I got some from Lani too, not got the engine back together yet but they look ace quality and the price was excellent even with the postage from USA.

Cheers

Duncan

[muskrat]

 They MUST be annealed properly. Heated to cherry red then quenched. It should be able to indent them with your finger nail.
Cheers

[wilko]

You must have tough fingernails!Can someone show me a copper gasket with indents? Closeup please!

[muskrat]

Off to work now Wilko, Yep I know ANZAC day. Will take a pic tonight.
Good luck with 2 up today.
Cheers

[jfligg]

Hi Guys
  I just got a set of gaskets from Lani.  What a first class guy.  Excellent customer service.  I have yet to fit the gaskets.  Thats this weeks job.  Ill keep you guys posted.  Jeff

[Stephen Foster]

I would be interested in a set if possible ?

[muskrat]

 Bit hard to see but the marks in the circle are from my thumb nail. Yes I need a manicure.
Cheers

[WozzA]

Hmmmm... Interesting.... & what thickness should one order a set?  ????

[muskrat]

G'day WozzA,
                  std paper gasket is 0.4mm. I got mine in 0.8mm to allow for years of lapping the head and box surfaces. It is handy being able to get them in different thicknesses to bring the geometry of the tappet and valve in line. At 1/2 lift the tappet should be in line and central to the valve stem. This is achieved by push rod length and rocker shaft height (gasket thickness).
Cheers

[TT John]

Muskrat.
Yes, thats the type of thing I want to do, good picture of it. Did you get the rear one also?  I don't think these need to be too thick I  would imagine half a mm should do the trick, its just that them ordinary gaskets you buy are pretty useless, when you have to move the rocker box around to get everything lined up, they normaly get mashed up somehow.
By the way if anyones interested I have justy had a batch of M20 head gaskets made (water jetted) using soft copper 1mm thick
they work out at £12 - 32 each plus p&p.

Regards TTJohn

[muskrat]

 G'day TTJohn. Lani sells them in sets. Standard Gasket thicknesses are: .016,  .021,  .026,  .032,  .042,  .050,  .063,  .092, &  .125, thats in inches so 0.4mm is 0.016"
Cheers