How to Assemble Cummins 6BT Series Engine for Genset

by Generator D. Diesel Generator

 Today Starlight Power shares how to assemble 6BT series diesel engine.

1.Assembly of Cylinder Block

A.Before assemble, should clean cylinder block. All oil passages, main bearing holes, camshaft holes, tappet holes and screw holes shall not have burr edges, and shall be blown clean with compressed air. No foam, moulding sand and iron chips. Wash with gasoline and white silk cloth until the cylinder and other moving parts are cleaned by sticking machine oil with toilet paper. There is no dirt on toilet paper that the cleaning is qualified;

B.Press bowl plug into water jacket hole and main oil passage hole of cylinder block, before pressing, should uniformly smear GY-255 anaerobic adhesive on the surface of bowl-shaped plug cylinder;

C.Main bearing head and cylinder block must be paired and assembled. The chamfered side of the main bearing cover (marked in sequence) faces the pump side. Each bolt hole of the main bearing cover has a positioning ring for location. Should keep the joint surface of bearing cap cleaned and wiped with non-woven or silk cloth;


D.In the course of delivery, should ensure the top, bottom and gear chamber surfaces of cylinder block are not damaged;

E.Press the flywheel positioning ring, cylinder head positioning ring and gear chamber positioning ring into the corresponding seat holes of the cylinder block with special tools, and the positioning ring should be pressed in place without deviation;

F.The installation position of the booster return pipe is at the lower right part of the cylinder block. Before assembly, should coat GY-255 anaerobic glue on the lower end of the return pipe, and press into the shoulder with special tools. The return pipe and the hole of the supercharger are in transitional coordination - 0.11mm-0.01mn.

2.Installation of tappet body

The fit clearance between the tappet body and the hole is 0.02mm to 0.065mm. Before assembling tappet, use 15W40 lubricating oil to lubricate the hole of cylinder block tappet, and use grease to lubricate bottom surface and inner socket of tappet body. The tappet body shall completely be located in the hole of tappet body, and can rotate freely.

3.Installation of crankshaft, gear and spindle bush

A.Firstly, check whether there are scratches or other defects on the surface of crankshaft journal. Install the positioning pin, the min protrusion of the positioning pin is 1.8mm. Before loading the gears, heat the gears in a furnace at 150  for 1 hour. Check the timing marks and defects situation of the gears. When installing, turn the chamfered side towards the crankshaft. After the gear is pressed into the crankshaft, it should be tightly attached to the crankshaft shoulder and checked with a 0.05mm plug ruler. It should not be stuffed into the crankshaft. Install the main bearing bush on the main bearing sea

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About Generator D. Senior   Diesel Generator

110 connections, 1 recommendations, 670 honor points.
Joined APSense since, September 11th, 2017, From Jiangsu, China.

Created on Nov 4th 2020 03:02. Viewed 107 times.


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