Ford Taurus, Руководство пользователя

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called measuring the ring end gap. Compare the reading to the one called for in
the specifications table. If the measurement is too small, when the engine heats up
the ring ends will butt together and cause damage. File the ends of the ring with a
fine file to obtain necessary clearance.
If inadequate ring end gap is utilized, ring breakagewill result.
3. Inspect the ring grooves on the piston for excessive wear or taper. If necessary,
have the grooves recut for use with a standard ring and spacer. The machine shop
can handle the job for you.
4. Check the ring grooves by rolling the new piston ring around the groove to check
for burrs or carbon deposits. If any are found, remove with a fine file. Hold the ring
in the groove and measure side clearance with a feeler gauge. If the clearance is
excessive, spacer(s) will have to be added.
Always add spacers above the piston ring.
5. Install the ring on the piston, lower oil ring first. Use a ring installing tool (piston
ring expander) on the compression rings. Consult the instruction sheet that comes
with the rings to be sure they are installed with the correct side up. A mark on the
ring usually faces upward.
6. When installing oil rings, first, install the expanding ring in the groove. Hold the
ends of the ring butted together (they must not overlap) and install the bottom rail
(scraper) with the end about 25mm away from the butted end of the control ring.
Install the top rail about 25mm away from the butted end of the control but on the
opposite side from the lower rail. Be careful not to scrap the piston when installing
oil control rings.
7. Install the two compression rings. The lower ring first.
8. Consult the illustration for ring positioning, arrange the rings as shown, install a
ring compressor and insert the piston and rod assembly into the engine.
PISTON PIN REPLACEMENT
1. Matchmark the piston head and the connecting rod for reassembly.
2. Position the piston assembly in a piston pin removal tool.
3. Following the tool manufacturers instructions, press the piston pin from the
piston.
4. Check the piston pin bore for damage, replace defective components as required.
Check the piston pin for damage, replace as required.
5. Installation is the reverse of the removal procedure.
ROD BEARING REPLACEMENT
1. Remove the engine from the vehicle. Position the engine assembly in a suitable
holding fixture.
2. Remove the oil pan. Remove the oil pump, as required.
3. Rotate the crankshaft so that you can remove the rod bearing cap. Matchmark the
rod bearing cap so that it can be reinstalled properly.
4. Remove the rod bearing cap.
5. Remove the upper half of the bearing from its mounting.
6. Carefully remove the lower half of the bearing from its mounting. It may be
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18.11.2005 file://C:\DOCUME~1\SILENT~1\LOCALS~1\Temp\trsHIPBC.htm