I have an oil leak on my 2810 coming from a drain plunger of some sort that no dealer can tell me what this drain is for. It seems to be engine oil. I brought it back to the dealer but they couldn't find the leak . During this time the pto went out and the importance of the oil leak went by the wayside. The pto was fixed with a lot of hassle but now the oil leak is disturbing at the least. Any help will greatly be appreciated. Thanks for the help.