G'day, Mates, I have a 1984 8kw model coming up on 5,000 hours with very minimal maintenance
over the 12 years that I have run it. Change the oil
and filters around 150 hours. I have put new bearings on the water
pump and replaced the fresh water pump
. Also give the heat exchanger
a good cleaning
out around each 1,000 hours. Cheers.