thomasverfurth
New member
Hi, so the viscous fan clutch just decided it would be a great day to spit out all of its grease, and to add to woes blow a hole in the top radiator hose and boy did it get hot!!
ANyhow, so we replaced the hose, filled with water, and ordered a new fan clutch (DAYCO PN #115505). Clutch was fitted by the mechanic, and presto we drive off. ENgin gets nice and warm, then keeps rising - 90+ degrees C, just around the city, and a bit higher under some load... climb a mountain range at 45km / 2500rpm, and the temp rises to about 100 degrees. SOmething doesn't appear right.
Pull over, checked under the hood - no water leaks, turned off the engine, and the viscous fan spins about 4 times before stopping... hmmm that's no right ?
Drove home slowely, called the mechanic and he comes to look. takes the hub off, re-fits thinking the nut may not have seated correctly and tries again...
Upon starting, big massive woosh of air from fan - insane amount, but as engine heated this slowed! Fan did not increas when reaching thermostat temp (87C), took fir a test drive to try and increase temps.... same prob. look under hood little air movement !
Mechanic reckons faulty clutch, and ordered another replacement being - fitted today.
Could this be a faulty viscous fan clutch?
What else should I look for?
Are there benefits of going electric fans over viscous fans? And... can I get ordinary fans or are there ones out there made for mercs?
Prior to this my engine used to run at around 87C - Idle, 90C along city / highway, and up to 95C to 98C climbing the mountain dependant on day temp. A local Merc mechanic said that they are 'hot' operating vehicles here in oz, and anything around the 90's to 100 is fine. he said not to get concerned unless she climbs ovber 105.
My vechicle is a 2000 312D Sprinter. 5cyl inline 2.9L diesel
VIN: WDB9034632P987975
By the way.. Im in Cairns - North Queensland where daytime temps in summer are anywhere from 28 - 38 degrees.
I'm running 50/50 collant mix (suited to merc spec).
Advices are appreciated !!
Tom
ANyhow, so we replaced the hose, filled with water, and ordered a new fan clutch (DAYCO PN #115505). Clutch was fitted by the mechanic, and presto we drive off. ENgin gets nice and warm, then keeps rising - 90+ degrees C, just around the city, and a bit higher under some load... climb a mountain range at 45km / 2500rpm, and the temp rises to about 100 degrees. SOmething doesn't appear right.
Pull over, checked under the hood - no water leaks, turned off the engine, and the viscous fan spins about 4 times before stopping... hmmm that's no right ?
Drove home slowely, called the mechanic and he comes to look. takes the hub off, re-fits thinking the nut may not have seated correctly and tries again...
Upon starting, big massive woosh of air from fan - insane amount, but as engine heated this slowed! Fan did not increas when reaching thermostat temp (87C), took fir a test drive to try and increase temps.... same prob. look under hood little air movement !
Mechanic reckons faulty clutch, and ordered another replacement being - fitted today.
Could this be a faulty viscous fan clutch?
What else should I look for?
Are there benefits of going electric fans over viscous fans? And... can I get ordinary fans or are there ones out there made for mercs?
Prior to this my engine used to run at around 87C - Idle, 90C along city / highway, and up to 95C to 98C climbing the mountain dependant on day temp. A local Merc mechanic said that they are 'hot' operating vehicles here in oz, and anything around the 90's to 100 is fine. he said not to get concerned unless she climbs ovber 105.
My vechicle is a 2000 312D Sprinter. 5cyl inline 2.9L diesel
VIN: WDB9034632P987975
By the way.. Im in Cairns - North Queensland where daytime temps in summer are anywhere from 28 - 38 degrees.
I'm running 50/50 collant mix (suited to merc spec).
Advices are appreciated !!
Tom