Water Pump Replacement Questons
#1
12-29-2009 | 10:39 PM
Thread Starter
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Professional
Joined: Oct 2009
Posts: 116
Likes: 1
From: Tulsa
Water Pump Replacement Questons
98 1500 2WD 5.9 103K
I was reviewing the Water Pump Replacent DIY in the FAQ section, but none of the pictures accompanying the text would open. Clues?
I am going to replace the bypass hose and thermostat while I'm right there, but it looks like I need to remove/move the compressor out of the way,(which is confirmed in the DIY text) but I can't tell exactly which bolts are which. does it become intuitive.
Also, why is the top bolt on the water pump a #50 Torx? Plus, I have a press on pulley, and couldn't get a "torx socket" on the head of the bolt because the pulley is in the way. Luckily I got it broke loose with L shaped # 50 Torx wrech (traditional shaped Allen wrench) and was able to use the long end and a set of channel locks on the short end of teh L wrench to get it fully removed. I am concerned about getting it properly torqued back on reassembly. thoughts?
I was reviewing the Water Pump Replacent DIY in the FAQ section, but none of the pictures accompanying the text would open. Clues?
I am going to replace the bypass hose and thermostat while I'm right there, but it looks like I need to remove/move the compressor out of the way,(which is confirmed in the DIY text) but I can't tell exactly which bolts are which. does it become intuitive.
Also, why is the top bolt on the water pump a #50 Torx? Plus, I have a press on pulley, and couldn't get a "torx socket" on the head of the bolt because the pulley is in the way. Luckily I got it broke loose with L shaped # 50 Torx wrech (traditional shaped Allen wrench) and was able to use the long end and a set of channel locks on the short end of teh L wrench to get it fully removed. I am concerned about getting it properly torqued back on reassembly. thoughts?
#2
12-30-2009 | 07:57 AM
Hall Of Fame
Joined: Jul 2006
Posts: 12,204
Likes: 8
From: Gainesville, Ga.
all the pictures posted before a big system upgrade back in 07 or 08 were lost.
there's 2? long bolts that hold the compressor in from the top. its intuitive. with the belt and wires off, and hoses ON, you can swing the compressor over to the passenger fender and wire it up out of the way.
i can only guess that somewhere in an engine or assembly factory, some engineer discovered that the torx bolt saved about 3/10 of a second in time, or maybe it prevented mixup of long bolt/short bolt or something.
a drive socket is good to have, but if you don't have one, just wing it. you can put a pair of plliers or tubing on it for a little more leverage if needed. another alternative is to replace that torx bolt with a hex head of the same size and thread. use a spare nut to verify threads.
there's 2? long bolts that hold the compressor in from the top. its intuitive. with the belt and wires off, and hoses ON, you can swing the compressor over to the passenger fender and wire it up out of the way.
i can only guess that somewhere in an engine or assembly factory, some engineer discovered that the torx bolt saved about 3/10 of a second in time, or maybe it prevented mixup of long bolt/short bolt or something.
a drive socket is good to have, but if you don't have one, just wing it. you can put a pair of plliers or tubing on it for a little more leverage if needed. another alternative is to replace that torx bolt with a hex head of the same size and thread. use a spare nut to verify threads.
#3
12-30-2009 | 09:02 AM
Grand Champion
Joined: Aug 2009
Posts: 5,971
Likes: 45
From: MAINE
the water pump is very simple....
The compressor has i think 2 power hook ups, 3 top bracket bolts, and then just unhook the alternator hook-ups, and then the bolts for the bracket that the alt. and A/c sit on, then you can pick them up together and move them out of the way.
Bleeding these trucks can be hard, so use this to bleed...its worked for me
1. Fill radiator with coolant.
2. make sure pass. side of truck is jacked up, so its the highest point.
3. put heat on full blast/defrost, and then start the truck.
4. add accordingly once the thermostat opens.
also on the thermostat there is a small jiggler valve...ive had best results when thats facing the manifold.
The compressor has i think 2 power hook ups, 3 top bracket bolts, and then just unhook the alternator hook-ups, and then the bolts for the bracket that the alt. and A/c sit on, then you can pick them up together and move them out of the way.
Bleeding these trucks can be hard, so use this to bleed...its worked for me
1. Fill radiator with coolant.
2. make sure pass. side of truck is jacked up, so its the highest point.
3. put heat on full blast/defrost, and then start the truck.
4. add accordingly once the thermostat opens.
also on the thermostat there is a small jiggler valve...ive had best results when thats facing the manifold.