Hi Tim,
The bolts that are problematic are the ones that have been tapped all the way thru. This leaves them open to moisture from the other end. I suggest that you get some Kroil from Kano Labs, spray into the open bolt holes several time a day for several weeks. This will let the Kroil penetrate and hopefully prevent the bolts from braking. You will need to remove some of the cooling baffles to gain access to the areas that I have mentioned. Not all head bolts go all the way thru, you will need to find them with a mirror and flashlight. Perhaps someone here knows which ones and will comment. Been a while since I've done Onan maintenance all my engines are now Briggs & Strattons with overhead valves.
Mad Mackie in CT :mrgreen: :mowlawn:
The bolts that are problematic are the ones that have been tapped all the way thru. This leaves them open to moisture from the other end. I suggest that you get some Kroil from Kano Labs, spray into the open bolt holes several time a day for several weeks. This will let the Kroil penetrate and hopefully prevent the bolts from braking. You will need to remove some of the cooling baffles to gain access to the areas that I have mentioned. Not all head bolts go all the way thru, you will need to find them with a mirror and flashlight. Perhaps someone here knows which ones and will comment. Been a while since I've done Onan maintenance all my engines are now Briggs & Strattons with overhead valves.
Mad Mackie in CT :mrgreen: :mowlawn: