Petter lubricator help

I haver petter s type with maddison kipp model 50 lubricator,  inside are terrible state as one pump casting is broken away on outlet and the worm drive has broken pieces , can't seem to locate parts any ideas, also what's is difference between standard model 50 and model 50 mkl, or would I best try for a calibrator lubricator instead,, I want run this engine but can't do anything as it will not develop crankcase pressure without lubricator connected

By the sound of it you need a twin feed M-K which was not used for long (c1925) and was replaced by The Petter Calibrater. The feeds supply the big end and cylinder oiling. Hard to come by and invariably dear. Parts and complete more modern M-K do appear on Fleabay USA. Twin feed Calibraters don't come up very often either.
Petters also used; Empire, Bosch, and possibly Manzel. I can't answer your M-K models question, I used to have a manual but gave it away. Try USA sources.
Many of these lubricators were also used for steam engines and steam parts suppliers may prove helpful though not cheap. If you can handle adapting base mountings and drive arrangements then almost any twin feed pressure lubricator will work.
Just for my own interest what is the serial of your engine?

Good luck.

Thankyou for the info didn't know they used so many makes of lubricator,  I have seen a 6 feed unit but being in usa , postage would be quite alot to bring to UK, I'll see if guy can do it.

Serial no 205791 I don't know the year of manufacture,  not had the engine running yet but hope to soon

Originally supplied with a Calibrater in 1929. Full details on the Internal Fire website.
Petters made at least 4 of their own design and lots of others across their pre WW2 range. Probably the single most varied component.

Can't help with parts but I have a manual if you need one.

Ahh thankyou petternut a calibrator model, wonder how it got a madison kipp on there strange , I couldn't log in to internal fire website as I forgot my password, I did send for password reset but nothing received was saved on computer but computer died

Thankyou woodsman that would be really handy yes please