I have a fl350 that would only need rings. The problem is the studs that hold the head on are pulling out of the top of the cylinder. Am I going to have to replace the cylinder? Doesn't look like there is allot of extra meat for heli coils.

Sounds like it yes.

I wouldn't trust a helicoil for those kind of pressures.

Hmmmmm.....I wonder if there is enough room for a timesert?

Rand

Look up what they do to blaster engines
They put cr500 studs in them

There a bigger stud at the bottom
I used a insert for one of my cylinders

My guess is someone over torqued the head nuts and pulled them out of the cylinder I would check to ensure the bore is still round.

Yeah I think the CR500 studs are the next bolt size larger than the 350 stud on the bottom side, side that screws into the cylinder..

i have used them in the past they work great

http://www.fastenal.com/web/products/de ... ngMachine=

Not sure if this is the right size but...you get the picture

Thank all of you for your input. It gives me some ideas. I have nothing to lose by trying something. I will post if I have luck repairing it.

Good point Hoser. If the cylinder isn't round anymore I may as well start looking for one. There is one more bore left and unless it is distorted it doesn't need bored now.