ENGINE COOLANT HEATER HOSES AND FITTINGS (OPTIONAL) - CONTINUED
Look for swelling, cracking, hardening,
and separation inside and outside.
All metal parts
Look for cracks, breaks, and corrosion
Look for damaged threads.
Tube nipple (2)
a. Secure elbow (1) in machinist's vise.
b. Screw in and tighten using open-end
c. Remove elbow (1) from machinist's