The Classic Machinery Network

David Cornwallis advertised as a supplier of all things Thwaites. I am in dire need of parts and have been in contact with him but dont get a reply.

Where else to go for Petter PH2 parts? I'm struggling to find anywhere via the internet.

The PH2 in an old Thwaites dumper is hunting badly and over a very long period, perhaps as much as 6-7 seconds per cycle. I suspect the governor pushrod/s are gummed up with dirt in the camshaft. 1) Is this the/a likely cause? What are any others? 2) Can the short pushrod be extracted without removi...

Hello everyone, my first post too! I've just bought of these - and it has slipping clutch. But how the heck does it come off? The cast collar assembly behind the spring slides on the gearbox input shaft and is retained by two "guides" mounted in the backplate that stop its rearwards moveme...