PULLEY GP-IDLER 3054908 - Caterpillar

Caterpillar: Confidential Yellow
PSP FOR OVERHEATING/COOLANT LOSS IN 3208 TURBOCHARGED MARINE ENGINES - PS0213 - MAILED WORLDWIDE
  The information supplied in this service letter may not be valid after the termination date of this program.   Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
PRODUCT SUPPORT PROGRAM FOR OVERHEATING AND/OR COOLANT LOSS IN TURBOCHARGED 3208 MARINE ENGINES, 1371, 1380, 1364, 1388, PS0213 (Revised July, 1984) U-43 A-28 AU-35 B-15 C-40 E-25 O-31 TM-3 SEE OCTOBER 3, 1984 Scrap your copies of the May 15, 1984, Service Letter, Form SEBE3211, and replace it with this revised Service Letter. Problem Loss of engine coolant and overheating have been experienced on some turbocharged 3208 Marine Engines, especially 300 HP engines installed in pleasure crafts. Several factors can contribute to this problem, including high sea water intake temperature, engine load, antifreeze concentration in the coolant, coolant leakage past the gaskets in the water-cooled exhaust manifold, and customer maintenance. There have also been reports of the short water line hose loosening and coming off at the rear of the water-cooled manifold. To reduce the possibility of overheating problems, customers and OEM dealers are requested to check several maintenance items whenever overheating is experienced. Caterpillar dealers are requested to install larger hoses and fittings in the exhaust manifold to increase coolant flow on earlier engines. Also, a new temperature alarm contactor with a higher setting is to be installed. Similar improvements have been made in production. Affected Engines And New Parts Needed A. Engines Requiring Rework Of The Front Water Lines And Installation Of The Alarm Contactor Group Engines with serial numbers