How to replace the unit injector sleeve on a Volvo?

1 Lubricate 88880057 Thread tap (M9) with grease in order to prevent swarf from falling into the cylinder. Screw the thread tap at least 5 mm into the copper sleeve, using 9998252 Thread cutting tool. 2 Remove tool 9998252 Thread cutting tool and 88880057 Thread tap.

How to replace copper sleeve on Volvo engine?

Screw the thread tap at least 5 mm into the copper sleeve, using 9998252 Thread cutting tool. 2 Remove tool 9998252 Thread cutting tool and 88880057 Thread tap. 3 Check that the tap, tool 9809668 Extractor (M9) is fitted to tool 88800191 Extractor. Replace the existing counterhold in the tool with 88880014 Counterhold.

How to change coolant in a Volvo engine?

Drain the coolant with the aid of 9996049 Draining hose; refer to Coolant, Change page 187. IMPORTANT! Working with the fuel system requests special cleanliness. 1 Lubricate 88880057 Thread tap (M9) with grease in order to prevent swarf from falling into the cylinder.

Why does my Volvo injector Cup not seal?

When the combustion gas gets in the fuel, the injector is not sealing against the injector cup allowing combustion gas to come up past that sealing point and get into the fuel gallery. The most common symptom is hard starting or extended crank time. Other symptoms can include low fuel pressure and low power

How do you test for a faulty injector Cup?

The more accurate test is to fit a clear fuel line on the in line to the head and inspect for bubbles to rule out the fuel system before the head. Then fit a clear fuel line on the return line coming out of the head. If you see bubbles after the head and not before you have confirmed faulty injector cups.

How to replace the unit injector sleeve on a Volvo?