International 3500A timing

[Oldiron1955]

Well I got the old girl put back together and running but I think the timing is off a tad as she smokes a bit more than I think it should and appears to be a bit low on power. When I took it apart the pointer was badly twisted out of shape, I did take it off and straighten it as good as I could but....don't think it is spot on. So my question is can I loosen the pump and carefully move it as you would a gas engine or must I find the marks again and then reset the timing by moving the mark on the damper above or below the pointer and readjusting the mark in the pump window. I set it at what appears to be 14* mark but again it is really hard for me to say that it is spot on Thanks in advance

 

[Dieseltech]

If the pump housing is centered on the studs now, you might be able to shift it a little. With engine OFF, scribe a reference line on the pump and timing case, loosen the
nuts, and push the top of pump TOWARD the engine to advance, pull AWAY to retard timing a bit. Try advancing first, separate the scribe marks 1/8 inch and see if engine
runs better. Some IH Neuss diesels are timed 16 BTDC, advance slightly might help.

 

[Oldiron1955]

Thanks so much for the input, I will have to look at the pump I don't believe that it is centered in the slot but I do think that there is some room to move it. I had marked the body of his old pump to be sure to get it as close as possible to the orignal install position but his pump was in very bad shape so he got a replacement. I will mark this one before moving it just for the reference point you mentioned. I am glad I didn't try to move it while running. Thanks again and I will let you know how it works out