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How
to...change your fan belt |
NB. This guide is
based on my 124 Spider which currently has a 131 1585cc twin-cam with
carb. Essentially, everything should be pretty similar on other carbed
Fiat twin-cams you might find in the Spider. If anyone has any comments
relating to fuel-injected Spiders, please let me know.
1. The alternator pivots along a slotted mounting plate (see first
photo below). Slacken the pivot bolt underneath the alternator and the
bolt on the slotted mounting plate above the alternator.
2. Ease the alternator in towards the engine block. The fan belt should
now be slack enough to remove.
3. Position the new belt over the crankshaft, water pump and alternator
pulleys.
4. Gently ease the alternator back away from the engine to take up the
slack in the new belt. Adjust the position of the alternator until when
applying moderate finger pressure, there is about 0.5 inch (13mm)
deflection in the belt midway between the alternator and water pump
(approximately at the fan belt arrow on the second photo below).
Finally, tighten the bolts back up.
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