Information plunger
BOSCH
9 413 611 718
9413611718
ZEXEL
134152-7500
1341527500
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Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
Premature wear of 162-2220 Check Valve in the 217-7455 Fuel Filter Base can cause low fuel pressure or injector malfunction.Solution
There are two solutions that can deal with the problem stated above and are listed below :
Replace the 162-2220 Check Valve with a new part.
Install an external check valve on the high-pressure outlet of the 217-7455 Fuel Filter Base .The procedure that follows below covers the process of installing an external check valve on the outlet of the pump. Table 1 lists the parts needed to install the external check valve.
Table 1
Item Qty New Part Number Part Description
1 1 238-5080 O-Ring Seal
2 1 238-5081 O-Ring Seal
3 1 305-6991 Elbow
4 1 420-1796 Check Valve
Illustration 1 g03420967
Install elbow (3) with o-ring seal (2) into the outlet of the fuel filter base.
Install check valve (4) with o-ring seal (1) into elbow (3) .
Illustration 2 g03421982
Install the fuel hose back onto check valve (4). Check for any leaks after installation.
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
Premature wear of 162-2220 Check Valve in the 217-7455 Fuel Filter Base can cause low fuel pressure or injector malfunction.Solution
There are two solutions that can deal with the problem stated above and are listed below :
Replace the 162-2220 Check Valve with a new part.
Install an external check valve on the high-pressure outlet of the 217-7455 Fuel Filter Base .The procedure that follows below covers the process of installing an external check valve on the outlet of the pump. Table 1 lists the parts needed to install the external check valve.
Table 1
Item Qty New Part Number Part Description
1 1 238-5080 O-Ring Seal
2 1 238-5081 O-Ring Seal
3 1 305-6991 Elbow
4 1 420-1796 Check Valve
Illustration 1 g03420967
Install elbow (3) with o-ring seal (2) into the outlet of the fuel filter base.
Install check valve (4) with o-ring seal (1) into elbow (3) .
Illustration 2 g03421982
Install the fuel hose back onto check valve (4). Check for any leaks after installation.