Merry Tiller Gasket?

Hi , new member here,  Just aquired a MT Major '73' white B and S 3HP engine with Pulsematic Carb . Got the spark going and engine running on petrol drips from can. Removed the carb and found the long Brass pick-up tube filter 'fossilised' at the end . Ordered new carb gaskets.  But now i want to do the rotor seals. I,v read that you cant pull them from the outside so need to split the case. My question....  Why cant you buy a chain case gasket???  they sell the bearings and seals so expect you to split the case. GRRR!!!

I only ran out of early type gaskets two weeks ago! Wolseley dealers had a special tool so that you could remove seals without a strip down. There is a similar tool available for use on new Merry Tillers but as their seals are slightly different I can’t say if it works on older models, nor whether Mighty Mac dealers have them. I had to get new tooling made to remanufacture the oil seals but doubt if it is worth getting gaskets remanufactured as you can easily make your own with a pair of scissors. Also chaincase gaskets were a pain in the **** to send by post. The Mighty Mac “Super Major” uses an almost identical chaincase to your 1973 machine so you can use their gasket if you like, part number 709-1654. Post 1978 Webb Merry Tillers use a different chaincase and a different gasket (also unavailable).  I would not advise using silicone goo on its own as the inner idler bearing race in the chaincase is gripped by the case which is sandwiched between the chassis rails, so gasket thickness is important. Those last Atco gaskets were made from 1.5mm thick cork nitrile.

R. Tallentire  mentions a part number 709-1654 for a gasket ,but which web site does it relate to?... Got my carb diaphram , painted the fuel tank.  But a bit miffed that when i ordered a 'slider' throttle control ,it did,nt come with the attachment for the handlebar. The old throttle has completly different.  Does anyone know what the fixing is called . It looks like it should be a 'coach bolt' which then 'morfs' onto a jubilee clip?  This is a 'generic' type control for a lot of applications and ,no, i cant find one on the B+S website.

Check my roto out . Gave it to my Brother and he loved it.  Said it was the 'Morris Minor' of rotovators .
-ysLiRnImyQ