Re: IH B-265 tractor - timing

Posted by JB on August 07, 2004 at 20:29:24 from (24.157.143.220):

In Reply to: IH B-265 tractor - timing posted by Marie Art on August 07, 2004 at 16:50:22:

Hi, never worked on B275 but worked on B414, 434 family. But I believe the only difference in these two tractors was the B275 had a 144 CU inch motor and the B414 had a 154 CU inch.

Does it have a CAV injection pump??

Look for two scribe marks on the timinig gear cover that the inject pump mounts on. It is by the mounting bolt farthest away from the engine block. Install the injection pump and with the 3 mounting nuts loose rotate the injection pump until the center of the slotted mounting hole on the injecton pump is midway between the timing marks on the timing gear cover. Then tighten the mounting bolts nuts.

Now bleed the fuel lines and start the tractor. Let it warm up. Now stop it and try starting it again. If it is difficult to start and blows a lot of smoke then it is timed to slow. If it kicks back on the starter then it is timed to fast.

To adjust, stop tractor, put a scribe mark at the present location, then loosen injection pump mounting nuts and rotate injection pump slightly in one direction, tighten nuts and try starting test. If it is worse repeat above adjustment but rotate in other direction.

Mechanics that worked on these tractors a lot would just time them by listening to the clatter of the engine.

Good luck
JB

Follow Ups:

• Re: IH B-275 tractor - timing Marie Art 22:44:29 08/07/04 (0)

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