I have a few 23hp Wright Standers. I am pretty good about maintenance...my 2 older machines have about 1000 hrs on them. Local mechanic told me that what usually goes on the machines is the engines, because of non maintenance. Instead of selling one of my older machines and upgrading to a new one at the price of 7 grand, I decided to have him go through the whole machine.....at worst case he said it will cost 1000 per machine, much less if the spindles are okay......I am thinking I made the right decision to do this...or did I not. 7 grand is alot of money, especially when each machine only gets about 300 hrs per year......