Crankshaft Gear; Operation 6-13 To Remove And To Fit - Perkins New 1000 Series Workshop Manual

6
New 1000 Series

Crankshaft gear

To remove and to fit Operation 6-13
To remove
1 Remove the timing case cover, see Operation 6-1.
2 Rotate the crankshaft until the marked teeth of the crankshaft gear and the camshaft gear are in mesh with
the idler gear. The marked teeth of the idler gear will not necessarily be in mesh with the marked teeth of the
other gears because of the different speed of rotation of the idler gear.
3 Remove the idler gear, see Operation 6-6.
4 The crankshaft gear is a transition fit on the crankshaft. It may slide off easily or, if it is a tight fit and the gear
is to be renewed, it may be necessary to remove the crankshaft, see Operation 5-15, to remove the gear safely.
To fit
1 The gear can fit easily, or it may be necessary to heat the gear before it will fit onto the crankshaft. If the
gear is to be heated, heat it in an oven to not more than 180 °C (226 °F). If an oven is not available, heat it in
coolant which is at its boiling point. Do not use a flame as this can cause local damage. Fit the gear with the
timing marks to the front.
2 Fit the idler gear, see Operation 6-7 and ensure that all the timing marks are correctly aligned.
3 Fit the timing case cover, see Operation 6-2.
142 Workshop Manual, TPD 1350E, Issue 4
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