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Re: Leaking antifreeze from the fan pully. is the fan...
Hi, The water pump will be directly behind the fan pulley. The fan pulley mounts onto the water pump shaft. So no the fan pulley is not the water pump. Safe Journey's, Wayne
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Disconnect the battery, locate the idler bracket that adjust the tension on the belt. Loosen the bracket and unhook the belt off of the Idler bracket(no need to remove belt unless in the way) Remove water pump when car is cooled down. Loosen bolts that hold the water pump on and remove pump. Put new one on and reverse process. Replace your antifreeze/ water. Start car for thirty seconds. Stop car, look for leaks and top off antifreeze. Done deal.
You probably have a water pump that is leaking. There is what they call a weep hole at the bottom of the pump housing and this is where the coolant would leak out on to the front of the crank pulley which would possibly get in the belt pulley grove of the crank pulley and spread it around when the engine is running. You could have a leaking thermostat gasket or upper radiator hose which connects to the motor that is leaking. There is no antifreeze which circulates in your pulleys nor are they filled with antifreeze.
Yep that a one that will let the job down - the seal can go - what age and has the mix been kept with glycol and inhibitor as water will erode material.
Hard to see where water is comeing from as it leaks from around the shaft behind the pully.
Quite an easy fix which is no real emergency so long as you keep topping up radiator.
Check out replacement or recon existing, the price of some water pumps new replacement makes time and parts spent on repair far too expensive.
On the larger older diesels i have experiece of - the water pump would go whilst working in the day then cause bearing failure which would allow the fan blade to carve up the radiator.
Cost then would escalate, radiator, fan blades, water pump and if you were really unlucky some of the surrounding bits. All good fun
you may have a water pump that is starting to fail. Look for the water pump that's driven by the fan belt. look at the housing of the water pump there is a relief hole that they drill in the casting and when the pump begins to fail it will drip out this hole. If that's where your leak is, it's time to change the pump. K
water pump is leaking past the shafts seal as there is a drain hole for that very reason [to show you it leaking] or its gasket has failed or pump bolts nead tightening
check pump for play in the shaft! [wobble the pully]
is it moves replace the pump!
Probably a water pump seal unfortunately. Pressurize the system, with the engine off, use a mirror to look under the water pump pulley to see if any fluid is dripping from the water pump seal weep hole.
If it is, change the water pump.
Good luck, let me know.
Regards,
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