Perkins — Perkins 4.108 4.107 4.99 Diesel Engine Workshop Manual

COOLING SYSTEM-M.2 0.000/0.006 in (0,00/0,15 mm) 2 3 M4 7 6 M2 To Dismantle the Separate Bearing Type Pump (Fig. M.3) bearings, press out the shaft (8) through the rear of the pump complete with the impeller (6) counterface (7), seal (9) and thrower (10). 3. Press the impeller from the shaft and remove the counterface, seal and thrower. 4. Hemove the bearing circlip (13) and using a suit- able adaptor, press the bearings (12) and distance piece (2) out through the front of the body (3). 5. Remove the seal retaining flange (4), felt seal (11) and seal retainer (5). NOTE:

On later pumps items 4, 5, 10 and 11 are no longer fitted and a longer distance piece has been introduced to accommodate the removal of the seal retaining flange (4). 1. Where necessary remove the pulley circlip (14) and using a suitable puller, remove the pulley (1) as shown in Fig. M.2. Make a note of the position of any pump securing setscrew that has been trapped in its location by the pulley. 2. Using a suitable adaptor that will pass through the To Dismantle the Combined and Shaft ( Using a suitable puller, remove the pulley (1), as shown in Fig. M.2. Make a note of the position of any pump securing setscrew that has been trapped in its location by the pulley. 2.

Remove the clip (7) through the aperture in the pump body (2). 3. Press the bearing and shaft assembly (8) out through the rear of the pump complete with the impeller (3), counterface (4), seal (5) and thrower (6) 4. Press the impeller from the shaft and remove the counterface, seal and thrower. Ii To Dismantle Earlier ( II This is the same as for the later types detailed above ~77?:;rz2:Z~st22~~j~iE~~~1_ except that the insert (1) will be pressed out with the . ri 9 shaft and impeller. 1. Examine the pump body for cracks, corrosion or any other damage. Check that the seal housing bore is not damaged. Renew where necessary. 2. Examine the shaft and bearing assembly for wear or corrosion.

Renew where necessary. 3. Examine the water thrower flange for damage or corrosion. Renew where necessary. Inspection M3