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May be simple fix Posted by Dana [Email] (#2822) [Profile/Gallery] (more from Dana) on Sun, 7 Sep 2008 21:29:52 In Reply to: How to avoid cracking cheap plastic radiators?, SPGX2, Sun, 7 Sep 2008 07:53:44 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Some of the new plastic radiators drain plugs came through with undersized o-ring. By that I mean correct the o-ring had the correct ID but too small OD to adequately shut off drain when plug was fully closed. Over torque on the plug would only break the plastic outlet connection. Drain your radiator again and remove the plug completely. You may see that the o-ring OD in the plug o-ring groove barely comes up to the OD of the plug. Replace with thicker o-ring with smae ID.
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