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ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 017-011   Straight Thread Plug

General Information

 TOC

Two types of straight thread plugs are used:

  1. Straight thread plug with o-ring
  2. Straight thread plug with formed in-place sealant.

The two plugs are interchangeable and reusable. The only difference between the two plugs is the installation torque value. See the install step of this procedure.

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Remove

 TOC

Select the appropriate size Allen wrench or socket, and remove the plug.

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Clean and Inspect for Reuse

 TOC

Use spray cleaner, Part Number 3375433, or equivalent, to clean the threads of the straight-thread plugs and threaded bores.

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Inspect the threads of the pipe plugs for mutilation or damage.

Replace the plugs, if damaged.

Inspect the threaded bores for damage.

Repair the bores, if necessary.

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For straight thread plugs with an o-ring, inspect the o-ring for cuts, tears, or deformation. Replace the o-ring if necessary.

For straight thread plugs with formed in-place sealant, inspect the sealant for damage. If damaged, replace the entire plug.

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Install

 TOC

If equipped with a straight thread plug with o-ring, install a new o-ring on the straight-thread plug, if required.

Lubricate the o-ring with clean 15W-40 oil.

Install and tighten the plug.

Torque Value:

M10

  1. 10 n.m   
    [89 in-lb]
Torque Value:

M12

  1. 20 n.m   
    [177 in-lb]
Torque Value:

M14

  1. 25 n.m   
    [221 in-lb]
Torque Value:

M16

  1. 35 n.m   
    [25 ft-lb]
Torque Value:

M18

  1. 45 n.m   
    [33 ft-lb]

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If equipped with a straight thread plug with formed in-place sealant, install and tighten the plug.

Torque Value:

M10

  1. 18 n.m   
    [160 in-lb]
Torque Value:

M12

  1. 25 n.m   
    [221 in-lb]
Torque Value:

M14

  1. 30 n.m   
    [22 ft-lb]
Torque Value:

M16

  1. 40 n.m   
    [30 ft-lb]
Torque Value:

M18

  1. 50 n.m   
    [37 ft-lb]

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Last Modified:  24-Jun-2009
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Published by Jack

Hello, I'm Jack, a diesel engine fan and a blogger. I write about how to fix and improve diesel engines, from cars to trucks to generators. I also review the newest models and innovations in the diesel market. If you are interested in learning more about diesel engines, check out my blog and leave your feedback.