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GM/Detroit 6.5L – DRAIN COCK

CAUTION: To help avoid the danger of being burned, do not remove the radiator cap or diesel surge tank cap while the engine and radiator are still hot. Scalding fluid and steam can be blown out under pressure if the cap is taken off too soon. Remove the radiator cap before draining the coolant, so the coolant is not forced out under pressure.

Remove or Disconnect (Figure 5)
• Drain radiator of coolant.
1. Drain cock stem.
• Seal will usually come out attached to stem.
2. Drain cock body.
• Squeeze sides of body with fingers or need lenose pliers to disengage body locking tangs from side tank.

Install or Connect (Figure 5)
1. Drain cock body.
• Make sure body is fully seated in side tank and that locking tangs are engaged.
2. Seal to stem.
3. Stem into body. Turn lock in place.
• Add proper coolant as specified in SECTION OB.
• Start engine and check for leaks.

 

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