Ludwig-Hunger valve seat cutter

For anyone who isn't familiar with this type of cutter it uses a tungsten-carbide single point tool that machines out the seat at the appropriate angle. It behaves like a lathe tool - in reality creating a spiral cut. It's remarkably versatile in that DIY cutters can easily be made. Last year I rebuilt a Honda CB450 head and made up the required tool by brazing a tip to a piece of tool steel.

Unlike most cutters that only use a pilot to loctate a cutter head in the valve guide, this uses an additional outboard support clamped to the head for rigidity and precision. Any number of seat angles can be cut - I used a 3-angle cut on the Honda.

The question I have is that I would like a PDF copy of the original instruction manual that came with the set. Mine is missing and I know there are many setups illustrated for different applications. It's perhaps an early 60s Mk1 set in a wooden case.

I had never heard of a Ludwig Hunger valve seat cutter before, so did a quick search and I found out the company is still in business.

https://www.ludwig-hunger.de/index.php/eng/Products/Automotive/Counterboring-valve-seat-ring-bores

Maybe worth contacting them.

Dave
The Emerald Isle

Thanks Dave. I contacted them a while back and they sent me a link to the latest version, which I already had. This doesn't have the contemporary vehicle specific instructions - mainly for aircooled VW and other applications. Also, there are different accessories and fixtures that are no longer shown in the newer instructions (mainly because its all obsolete).

I also posted on the Samba forum and had a reply from an owner who had an original manual and he said he'd scan and email it but never did. His account is no longer active. I can use the cutter set without issue, but would like to get the manual to go with it anyhow.

Mike,

I have the remnants of a 'partial' set of Hunger seat cutting tools and there may be an instruction manual buried in the box with those remnants. I had it a long time ago and used it regularly, then someone borrowed it and when it came back I foolishly didn't check the contents! It went with a Hunger valve lathe that was a beautiful little thing, single point valve seat cutting at any angle desired.

I'll dig it out the shed and look as soon as I get the chance.

Martin

That would be great. I'd also be interested in the remnants if you wanted to sell what you have as my own set is incomplete.

Mick,

I'll dig it out and PM you as to what is there.

Martin