[mecanic]

hei

i did`t now this machine but some you have to chech, whane the headgasket blowing more than one times

did you have check the head its plane or the engineblock , maybee there its stechbolt to you must use here i find som partslist her
, Tecumseh Power Company HH120-120045C 120045C-HH120 Engine Parts List #1 | Shank's Lawn Dixon

its some tips on you tube too , you can look at