This afternoon I was successful in completing the re-power of my H27 (see picture of engine). I originally removed the Renault engine last fall, purchased a Yanmar 2GM, reworked the mounts, etc and installed the Yanmar last month. Then came the replacement of the fuel feed pump which arrived via UPS on Friday. Installed that today, went through the bleeding process all the way to the injectors....and finally was treated with the beautiful sound of the 2GM engine running. Such a nice sound to hear after all that was involved with the re-power.
Of course the end result came with many frustrations and a whole lot of 'Oh, I never thought about that', but now I can look back and know that the time, effort, bruises to my arms, chest, and hands, and laying across the top of the engine was worth it all.
As some of you know, last week I was in the final stages of starting the engine when I found that the fuel feed pump was not operational. I found a new spare and ordered it and had it shipped. It arrived yesterday. Today I cleaned off the old gasket, and without too much trouble installed the new fuel feed pump. I then connected the inlet fuel line and began to bleed the system one step at a time.
At first I only bled the lines up until the fuel filter, hoping that I did not have to bleed it all the way to the injectors. I had a water line connected to the engine running from a 5-gallon bucket which was supplied with water from a hose. I turned the key and pushed the start button and the engine would crank but would not start. So I cracked both of the fuel lines at the injectors, cranked the engine again (with the decompression levers up). After cranking for a bit, I tightened the fuel lines at the injectors and flipped the decompression levers into operating position, turned the key, pressed the start button and the engine began running, a bit rough at first, but after about 30 seconds, it ran smooth and even.
I ran it for about 5 minutes, continuing to keep the water bucket full, and bringing the rpm's up to 3K, then down to 2K, and then let it run at about 1200 rpm's. Once warmed up I was able to idle the engine at around 600 rpm's without it killing.
I am so thrilled. I immediately went up to the office of the marina and scheduled my launch day for next Friday. I then started the engine again and ran it for about 10 minutes, changing the rpm's and then with it running at 1200 rpm's I tested both forward and reverse gears to a few seconds.
I look forward to the launch and being able to run the engine and put it through some tests around the harbor, etc before taking it out into the lake.
I want to thank everyone on this forum for their helpful suggestions and insightful hints. A special thanks to Claude who provided the detailed bleeding process. It was most helpful even though I had the manuals. Thank you everyone.
I am in the process of putting together a detailed writeup on the re-power including pictures and descriptions. I hope to have that completed within the next week and will post when finished.
So now that I have a Yanmar in my H27, I have a used Renault RC8D for sale. I will be posting pictures and descriptions of the Renault engine, control panel, and coupling in the very near future. So if you know of anyone needing a Renault, please have them contact me.
Of course the end result came with many frustrations and a whole lot of 'Oh, I never thought about that', but now I can look back and know that the time, effort, bruises to my arms, chest, and hands, and laying across the top of the engine was worth it all.
As some of you know, last week I was in the final stages of starting the engine when I found that the fuel feed pump was not operational. I found a new spare and ordered it and had it shipped. It arrived yesterday. Today I cleaned off the old gasket, and without too much trouble installed the new fuel feed pump. I then connected the inlet fuel line and began to bleed the system one step at a time.
At first I only bled the lines up until the fuel filter, hoping that I did not have to bleed it all the way to the injectors. I had a water line connected to the engine running from a 5-gallon bucket which was supplied with water from a hose. I turned the key and pushed the start button and the engine would crank but would not start. So I cracked both of the fuel lines at the injectors, cranked the engine again (with the decompression levers up). After cranking for a bit, I tightened the fuel lines at the injectors and flipped the decompression levers into operating position, turned the key, pressed the start button and the engine began running, a bit rough at first, but after about 30 seconds, it ran smooth and even.
I ran it for about 5 minutes, continuing to keep the water bucket full, and bringing the rpm's up to 3K, then down to 2K, and then let it run at about 1200 rpm's. Once warmed up I was able to idle the engine at around 600 rpm's without it killing.
I am so thrilled. I immediately went up to the office of the marina and scheduled my launch day for next Friday. I then started the engine again and ran it for about 10 minutes, changing the rpm's and then with it running at 1200 rpm's I tested both forward and reverse gears to a few seconds.
I look forward to the launch and being able to run the engine and put it through some tests around the harbor, etc before taking it out into the lake.
I want to thank everyone on this forum for their helpful suggestions and insightful hints. A special thanks to Claude who provided the detailed bleeding process. It was most helpful even though I had the manuals. Thank you everyone.
I am in the process of putting together a detailed writeup on the re-power including pictures and descriptions. I hope to have that completed within the next week and will post when finished.
So now that I have a Yanmar in my H27, I have a used Renault RC8D for sale. I will be posting pictures and descriptions of the Renault engine, control panel, and coupling in the very near future. So if you know of anyone needing a Renault, please have them contact me.
