does anyone know if you need a puller to remove the injectors on a 2gm20 motor are will they come out without one? thanks
yanmar diesel in a beneteau
- Thread starter mnydvr
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Use penetrating oil to losen them. On my little yanmar, my injector just slides in the head and has a copper washer to seal it. However it took a 4' cheater pipe to break it free. I thought it was threaded at first but it is just a smooth cylinder. Whatever it is using penetrating oil will make the task easier.
I got the book guys and I was just trying to ask a simple question,you are not getting a 4' anything in there and all it took was a tap to get them out and for future advise,they DO make a puller if you need it.Any body need a book for a 2GM 20,I didn't realize,I have 2!Thanks for the help boyz!:cussing:
Your question was a little ambiguous. I didn't know if you were asking if a puller was available or if you could do the job with out using a puller, which you knew was available. Anyway, how would we be able to determine if your injectors were loose enough to remove them with out a puller? I am going to guess that some are loose enough and some are not. But not even the designer of the engine could tell you about the corrosion on your specific injectors.
I had the engine pulled and the head in a vise otherwise my injector was not coming loose.
I had the engine pulled and the head in a vise otherwise my injector was not coming loose.
I asked if I needed a puller because in most cases if a part is "pressed" in place you would need one and not be able to tell,in other cases you rely on the experience of others.See ,I run a mobile service,I did not have a puller on the truck,one was available from a friend,I was trying to save my self a trip to his shop by asking,I don't do alot of these and figured I would ask for a general opinion as to what to expect,anyway they came right out ,simple as pie,strangest thing was,I bought two new injectors for a 2GM20 motor,when I pulled them out,they were different,went back to my parts man an he asked me for ser.#'s ,did'nt have any on the motor,then he told me that the injector I pulled was from a 3GM20 motor,told him ,NOPE ,2GM20,he said he was looking at a 3GM20 injector and the new one that matched was the same,so that is what is in it.NOW for the good part,turns out that in 1984 Beneteau made 4 of these boats ,the boats were modified and shipped from France,they have oversized injector pumps from an "H" motor and injectors from a 3GM20 motor,they were trying different combinations and made "alternative " parts for M20GM motors,they look pretty much the same,just don't look for ser# plaques,because all you will find is an over sized injector pump,they are plumbed a little different also,they also tell you that the salt water pump is a 2GM20 but should overheating or higher than normal temps occure,then a 3GM20 motor pump can be used,they were not fresh water cooled as to cut down on motor wieght,the owner has just become aware that he accidentally purchased a modifed ,full custom race boat,he always wondered what those first and second place plaques next to the helm station were for ,now we know,interesting HUH?
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