Intake Valve Seals Used{1105,1300}
Usage:
3208 Naturally Aspirated Truck, Industrial, Marine, Generator Set Engines;
225, 225B ( 2ZD ),
229 ( 1GF ) Excavators;
227 Loggers
Description of Change: Seals are now used on the intake valve stems in the above products. The seals give better oil control at idle or light load conditions.
Adaptable To: The 7W9143 Seals are effective with the following serial numbers:
- 3208 Truck Engine - 51Z68442
- 3208 Industrial Engine - 90N68921
- 3208 Marine Engine - 75V9255
- 3208 Generator Set - 29A1602
- 3208 Vehicular Engine (NA) - 79V15389
- 3208 Industrial Engine - 90N68921
The new seals are directly adaptable to earlier 3208 Naturally Aspirated Engines, including 613B and 613 Tractors. The seals do not fit on turbocharged engines because of interference with the inner valve spring. The letters "IN" for "Intake" are on the end of the seals.
Caterpillar Information System:
1987/11/23 Orifice Reverse Flow Check Valve Used In Fuel Injection Pumps{1251,1254}
1987/11/23 Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/16 New Water Temperature Regulator Helps Prevent Overcooling{1355}
1987/11/16 New 8C9705 12 Volt Converter Available To Power The 8T8697 Electronic Control Analyzer Programmer (ECAP){0600}
1987/11/16 New Air Powered Scraper Available For Gasket Removal{0600}
1987/11/16 New Service Tools Available{0600}
1987/11/09 Parts Information For VR3 Automatic Voltage Regulators{4467}
1987/11/09 New 1U6313 Adapter Available For Use With Nitrogen Tire Inflation Group{0600,0730}
1987/11/02 4N3311 Radiator Cap Has Improved Sealing{1382}
1987/11/02 Results Of High Speed And/Or Overspeeding Of 3406B Truck Engines{1105,1209,1210,1214}
1987/11/02 Four New Sizes Of Three-Jaw Pullers Available{0700,4050}
1987/11/02 Improved Duo-Cone Seal Installers Available{0600,7561}
1987/11/23 Additional Parts Required For Installation Of C-336 Jacobs® Engine Brake{1119,1209,1210}
1987/11/23 Connections For Water Conditioner Lines Changed{1350}
1987/11/23 Ring Retainer And New O-Ring Seal Used In The BrakeSaver Engine Oil Lines Group{1159}
1987/11/23 Improved Mounting Hardware For Electronic Control Group{1250,1259}
1987/11/23 Improvements To Prevent Oil Leakage At Cylinder Heads{1100,1221}
1987/11/30 New Caterpillar Excavator Service Reporting Codes Booklet For SIMS And Service Claims Use {0336}
1987/11/30 Two New Vacuum Pumps Available For Servicing Air Conditioning Systems {1802,7320}
1987/11/30 The 8T5200 Signal Generator/Counter Group And Its Uses {0783,3000,3012}
1987/11/30 Oil Pan Size Identification {1302}
1987/11/30 Engine Oil Refill Capacity Reduced {1318,1326}
1987/11/30 Improved Starter Solenoid Prevents Contact Corrosion {1453}
1987/12/14 New Linings Available For Flywheel Clutch Brake Shoe Assemblies{3058}