Just want to throw this out there for all you diesel owners on a problem we had with our injection pump and my findings etc. I would like to know your thoughts on this.
Our M-25XPB engine has about 240 hrs on it. Recently bought our Catalina 30 and it had 35 hrs on the engine. Our boat is in Puerto Vallarta and we live in Canada. We go down 3-4 times a year but the boat sits during the summer months when it's nice up here. We had someone starting the boat once a week I told him. About 6 mths after using the boat I had issues with the pump where the slider bar on the side of the pump would lock up and the boat would quit. I loosened it up by playing with it and away we went having no problem till months later. Same thing. This past Xmas we were down and it seemed fine as we ran it over 3-4 day on and off , then it quits on us. Same thing. Bar really locked up this time. So got towed back to our slip. As no one there seemed to know much about injectors I decided to pull it out and take it apart. 3 cylinder engine and all 3 pump springs were in pieces. No parts around so brought pump back to Canada and took into an injection shop. Much research on internet and talking to individuals it was determined that moisture was the issue. I do have a Racor filter and clean fuel filters. I did track down that Universal uses the Kubota block and parts are interchangeable. I had a long talk with the injection shop and he said the motor doesn't get hot enough to burn off the moisture in short runs out of the marina then shutting off. He says they have lots of Yanmar engines used in many machines that have the same issue. Ours is the Universal but all use the Kubota block. These Kubota blocks are used in many machines. He also say he gets lawn mowing equipment that use this block have the same problems with pumps. So in talking with him I came up with this idea which he thought would be good but wanted to run it by you guys to see what you think.
Using the engine frequently should have no issues. Getting it good and hot will help. During long periods of non use as in when we leave it sit in Mexico for 6-8 months instead of having someone start it once a week which he said is probably not good as it won't get hot enough and condensation forms inside. Why not pull the valve cover ,soak the valves and top end with oil, open the side cover to the pump and spray oil on the pump area and cam below. I'm not sure what would be better. Now Mexico in the summer is very humid as a lot of you know and I'm sure there are engines sitting just as ours. We live in Canada and farmers park there equipment in the field in the fall and don't go back to it till late spring but the condensation freezes. Our pump had not severe but did have corrosion on surfaces Your thoughts??????
Our M-25XPB engine has about 240 hrs on it. Recently bought our Catalina 30 and it had 35 hrs on the engine. Our boat is in Puerto Vallarta and we live in Canada. We go down 3-4 times a year but the boat sits during the summer months when it's nice up here. We had someone starting the boat once a week I told him. About 6 mths after using the boat I had issues with the pump where the slider bar on the side of the pump would lock up and the boat would quit. I loosened it up by playing with it and away we went having no problem till months later. Same thing. This past Xmas we were down and it seemed fine as we ran it over 3-4 day on and off , then it quits on us. Same thing. Bar really locked up this time. So got towed back to our slip. As no one there seemed to know much about injectors I decided to pull it out and take it apart. 3 cylinder engine and all 3 pump springs were in pieces. No parts around so brought pump back to Canada and took into an injection shop. Much research on internet and talking to individuals it was determined that moisture was the issue. I do have a Racor filter and clean fuel filters. I did track down that Universal uses the Kubota block and parts are interchangeable. I had a long talk with the injection shop and he said the motor doesn't get hot enough to burn off the moisture in short runs out of the marina then shutting off. He says they have lots of Yanmar engines used in many machines that have the same issue. Ours is the Universal but all use the Kubota block. These Kubota blocks are used in many machines. He also say he gets lawn mowing equipment that use this block have the same problems with pumps. So in talking with him I came up with this idea which he thought would be good but wanted to run it by you guys to see what you think.
Using the engine frequently should have no issues. Getting it good and hot will help. During long periods of non use as in when we leave it sit in Mexico for 6-8 months instead of having someone start it once a week which he said is probably not good as it won't get hot enough and condensation forms inside. Why not pull the valve cover ,soak the valves and top end with oil, open the side cover to the pump and spray oil on the pump area and cam below. I'm not sure what would be better. Now Mexico in the summer is very humid as a lot of you know and I'm sure there are engines sitting just as ours. We live in Canada and farmers park there equipment in the field in the fall and don't go back to it till late spring but the condensation freezes. Our pump had not severe but did have corrosion on surfaces Your thoughts??????
