cascade_36
New member
"Hello all. It has been quite
"Hello all. It has been quite a while since I last posted. Unfortunately it was very tough to get to the boat in 2008. I finally made it in late Nov for an overnighter at which time my friend and I pulled the head and injectors off my 3GM30F. The reason was it was hard to start cold but ran great and started easy warm, I could see coolant stains where coolant had run out of the head gasket seal and down the port side of the engine, and when the engine was warming up it would pump air (not much) into the coolant overflow tank. I need to trust this engine and decided to open it up. Now I am ready to re-assemble it as the head has been ground flat, valves and seats ground, and the injectors (tips good, a little out of spec on the cracking pressure) cleaned and brought up to spec. I have my gasket set and a Yanmar maintenance manual.
My question is that the manual calls out for lots of different gasket sealers (Threebond#4, etc) for the head gasket and others. I looked online and I suspect Threebond doesn't even make that series anymore.
Question #1 = Do you recommend a gasket sealer at all on the head gasket? I thought head gaskets didn't need any unless the head was warped.
#2 = If I do need various gasket sealers, locktights, and thread lubes, what do you recommend?
The manual lists about six different compounds but I suspect I don't need quite that many. Can I just pick some up at a motorcycle shop or do I have to buy "Yanmar approved" stuff from a marine deisel shop?
You guys have helped me in here before and any more advice you would be willing to give would be much appreciated.
I plan on starting this motor in about a week with a little luck and help from my MarineEngine.com friends......
Thanks...
Kerry"
"Hello all. It has been quite a while since I last posted. Unfortunately it was very tough to get to the boat in 2008. I finally made it in late Nov for an overnighter at which time my friend and I pulled the head and injectors off my 3GM30F. The reason was it was hard to start cold but ran great and started easy warm, I could see coolant stains where coolant had run out of the head gasket seal and down the port side of the engine, and when the engine was warming up it would pump air (not much) into the coolant overflow tank. I need to trust this engine and decided to open it up. Now I am ready to re-assemble it as the head has been ground flat, valves and seats ground, and the injectors (tips good, a little out of spec on the cracking pressure) cleaned and brought up to spec. I have my gasket set and a Yanmar maintenance manual.
My question is that the manual calls out for lots of different gasket sealers (Threebond#4, etc) for the head gasket and others. I looked online and I suspect Threebond doesn't even make that series anymore.
Question #1 = Do you recommend a gasket sealer at all on the head gasket? I thought head gaskets didn't need any unless the head was warped.
#2 = If I do need various gasket sealers, locktights, and thread lubes, what do you recommend?
The manual lists about six different compounds but I suspect I don't need quite that many. Can I just pick some up at a motorcycle shop or do I have to buy "Yanmar approved" stuff from a marine deisel shop?
You guys have helped me in here before and any more advice you would be willing to give would be much appreciated.
I plan on starting this motor in about a week with a little luck and help from my MarineEngine.com friends......
Thanks...
Kerry"