timing on a 1486

Anonymous-0 · Oct 23, 2009

I have a 1486 diesel that a little shy on power and hard to start when it gets cold. The timing is set on 18 but my brother inlaw told me to advance the timing up to 19 or even 20. will this help on starting and power or will it make it run any hotter?

the tractor vet · Oct 23, 2009

If she is getting hard to start there are several things that come into play here and timing is not that much of and issue . (1) Low compression (2) cranking pressure on the injection pump, (3) cracking pressure and spray pattern of the injectors , (4) cranking speed of the starter ,(5) condition of the batterys and the size of the cables to the batterys and starter . Also you could have a cam going out and this will not allow the valves to open as they should . To give a good determination of your problem i would have to see for myself what it was really doing at the time of a cold start . If the tractor is throwing white smoke before and shortly after startup then she is getting tired and needs a major rebuild and not and in frame . As that more then likely has been done at one point in time already and now it needs to come out and gone thru totality .But that is my way and may not be what someone else calls a total rebuild . So doing a compression test and having the pump rebuilt along with the injectors is a start .

timing on a 1486

Anonymous-0

Well-known Member

the tractor vet

Well-known Member

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