Hi, I purchased a H34 1984 with 3gm30f motor. The boat took on some water while on the hard but it reached just below the air cleaner canister. I inserted the mixture through the oil passageways under the valve cover and by the way it looks great under the valve over and no moisture or corrosion, no water in the oil, the alternator is frozen as is the starter. I removed the injectors and poured into each injector chamber a full mixture of 1/2 red transmission fluid with equal part acetone. After a week re filled the chambers.After 2 weeks i attempted to turn the crankshaft and it moved clockwise 10 degrees. i waited 10 minutes and then moved the crankshaft counterclockwise 10 degrees. I filled the injector chambers up with the mixture again and the next day i began to work the crankshaft fully back and forth being careful to not muscle it past a frozen point but gently until it went completely 360 degrees and after 10 minutes i was able rotate the pulley 360 degrees by hand. My question now how do i get the mixture of fluid out of the cavity between the pistons and the injector tips when i try to start the engine, Assuming the mixture that i cannot get out of the chambers by rotating the engine will make it nearly impossible for the diesel fuel to become combustible? I appreciate any and all thoughts what i should do from here before i attempt to start the motor. Other than change the oil, polish the fuel and change all fuel lines and filters.
H34 3GM30F SEIZED ENGINE
- Thread starter hunter healer
- Start date
turkey baster in the injector hole followed by a rolled up paper towel. Use them after cranking the motor with the injectors out. It will make a mess but cranking should blow most of the fluid out. Put rags over the injector holes to catch the fluid coming out. Also some of it WILL have gotten into the exhaust manifold and it will make quite the cloud of smoke once the engine fires up.
Good luck
Good luck
After I removed the injector there was a rubber o ring that beds the injector barrell to the cylinder head and I
Noticed a copper insert at the bottom of the injector chamber in the head. Should that copper sleeve take a seal somewhere that I'm not seeing maybe underneath it?
Noticed a copper insert at the bottom of the injector chamber in the head. Should that copper sleeve take a seal somewhere that I'm not seeing maybe underneath it?
You'll need to download 3gm30f spare parts catalogue. It shows exploded view of all engine parts including the injectors assembly with copper disk o-rings etc....
If you PM your email I could email the 2gm20f (my engine) parts catalogue to you. Mostly same parts used for 3gm30f.
If you PM your email I could email the 2gm20f (my engine) parts catalogue to you. Mostly same parts used for 3gm30f.
Rub rail for Hunter sailboats
After many years of shortage, we now offer rub rails for most Hunters from the late-90s and newer. Insert and keeper/track available.
See the product