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Old 10-08-2019, 12:00 PM   #1
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Alternator , thermostat water pump replacement

Hereís some pics of my Yaris under the knife
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Old 10-08-2019, 12:03 PM   #2
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Last pic was Chapman driver (that fits) removing philps screw on a/c line support that when bolt underneath is removed it can moved down out of way
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Old 10-08-2019, 12:24 PM   #3
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Armstrong 11-994 ratchet 3/8 to 1/4!adapter 14mm socket lower alternator bolt. Upper is 12mm
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Old 10-08-2019, 12:31 PM   #4
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No room to pull lower alternator bolt out with ratchet so I used a 14mm locking flex head wrench angled to fit between alternator and a/c lines.
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Old 10-08-2019, 12:37 PM   #5
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Alternator out thereís your water pump
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Old 10-08-2019, 12:43 PM   #6
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And the thermostat housing
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Old 10-08-2019, 12:44 PM   #7
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Note the rusted nutin last photo .Whole stud came out with but seized to it. Bought a new stud and nut.
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Old 10-08-2019, 01:12 PM   #8
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Use hose clamp pliers on lower road hose to thermo housing
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Old 10-08-2019, 01:21 PM   #9
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Hose off.
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Old 10-08-2019, 01:29 PM   #10
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I pulled thermostat out with a hook and pick
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Old 10-08-2019, 01:46 PM   #11
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New Thermostat and o ring. Out new stud in block with stubby 1/4 ratchet and 4mm socket. Cleaned housing with acetone/rag. Nuts are 10mm. Reassembled
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Old 10-08-2019, 02:08 PM   #12
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You should remove water pump pulleys bolts with belt on. I didnít and put a 9 inch 1/4 extension to prevent pulley from turning. Scared back of pulley a bit. I used a new pulley so wasnít concerned .
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Old 10-08-2019, 02:15 PM   #13
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I removed 10mm water pump bolts/nuts with a 8 inch matco 1/4 drive ratchet . Lowest bolt is near the hump in pump at bottom. I accidentally removed timing cover bolt that is very close to water pump bolt.
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Old 10-08-2019, 03:06 PM   #14
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Removed pump. Far right is bottom bolt hole thatís hard to tighten and close to timing cover bolt . Note dried pink coolant
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Old 10-08-2019, 03:08 PM   #15
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Tightening stud . Pump has 2 studs with 2 nuts and 3 bolts.
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Old 10-08-2019, 03:10 PM   #16
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Used permeated gasket remover and a razor blade at 90 degree angle. Ended up massaging goo gone oven cleaner on timing cover with m thumb 3 times . Throughly rinsing with water .
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Old 10-08-2019, 03:16 PM   #17
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Install new gasket and pump . Tighten to 11nm or 97 inch lbs. I used 100 inch pounds. Shown is gearwrench torque wrench between pump and firewall. The back nut and bottom bolt had to be done leaning on engine cover torque wrench towards firewall.
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Old 10-08-2019, 03:21 PM   #18
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Before torquing I tightened with little 3 inch tekton 1/4 ratchet. Then final torque with torque wrench
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