TMK Posted May 3, 2013 Share Posted May 3, 2013 This past week I blew the water pump on our 2001 460 engine . Flushed the system out twice but there still is some residual grit in the coolant . The 427 engines have a coolant filter kit that can be added to the front of the coolant manifold but our dealer (Nortrux) tells me that it cannot be installed on the 460 . I picked up a Baldwin filter kit but I am wondering where the best place to mount it would be , I was told to tap into the bottom aluminum coolant pipe where there is a drain port and plumb the return coolant to the coolant manifold that runs along the heads . Thanks for your help . Quote Link to comment Share on other sites More sharing options...
bbigrig Posted May 4, 2013 Share Posted May 4, 2013 We had a batch of E-Tech engines from Mack between 2000 and 2001 that the blocks were not cleaned out properly from the casting process. We use to start having plugged coolant passages on the air compressors which would cause head issues on the compressors and coolant flow issues. there was a service bulliten on this issue back then. Not sure of the Ref. number. you may need to check your air comprssor if it is full of casting dust and grit. it is the one of the lowest areas in the cooling system and is where the dust and grit will settle when the truck is at rest. The quick way we tested them for coolant blockage or restriction was with a laser temp gauge pointed at the input and out put line of the compressor coolant lines. there will be a large temperature difference. At that time that batch of trucks were coming with a plastic air line running to the compressor unloader air line port. The compressors would get so hot the air line at the compressor would melt. We had to flush those trucks out but spread the intervals to once a week over 3 weeks. Hope you get the grit out.... Quote Link to comment Share on other sites More sharing options...
redrider Posted May 10, 2013 Share Posted May 10, 2013 My '03(late '02) non-egr 460p has one from factory. It's on the left side of the motor in front of the oil filters. Quote Link to comment Share on other sites More sharing options...
redrider Posted May 10, 2013 Share Posted May 10, 2013 My '03(late '02) non-egr 460p has one from factory. It's on the left side of the motor in front of the oil filters. Quote Link to comment Share on other sites More sharing options...
wastenafarmtrucking Posted May 10, 2013 Share Posted May 10, 2013 My 01 460 had a coolant filter as well. The bracket looked like it just plain bolted on by the t-stat housing. Quote Link to comment Share on other sites More sharing options...
bobo Posted May 12, 2013 Share Posted May 12, 2013 save your self the trouble...just use red "long life" coolant bobo Quote Link to comment Share on other sites More sharing options...
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