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Originally Posted by optimusprime
Nice project .I have been thinking of doing this for some time now. Did you have any problems fitting the fan .And my way would be a simple switch on the dash so i could work it, as , and when , the temp was on the up . I was reading on the web about this guy that new all about the merc engines m103 m102.And his words were to change the thermostat to a lower rating so the water circulated quicker to keep it cool . Can i ask what fan did you use please .And can you post a diagram of wiring .
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No problem fitting the fan. However, when mounting them, you should mount one by the lower radiator closet to the alternator and the other at the top of the radiator with the hub of the fan almost centered to the water pump pulley, slightly towards the center. The fans are Spal fans that I got from a 2 different Volvos at the junk yard Looking on the Spal website I'd say the part number for the fan is 30100320, even though it says its a pusher fan, reverse polarity and it is a puller fan, which it what I orginally did as I wondered why my temps kept climbing until I swapped around the positive and negative wires.