The timing chain tensioner access cover on the Toyota 2GR-FE engines is sealed to the timing cover using a metal gasket. The gasket is similar to the type of metal gasket used on lower intake manifolds.
For some unknown reason, mine decided to start dripping after a few hundred miles. I have obtained a replacement gasket and will clean the surfaces more thoroughly this time, but I wonder if applying the referenced Permatex product (#85420) would be a good idea. I read online that it is very similar to Hylomar Blue and should be a better choice than most gasket sealants or RTV.
For some unknown reason, mine decided to start dripping after a few hundred miles. I have obtained a replacement gasket and will clean the surfaces more thoroughly this time, but I wonder if applying the referenced Permatex product (#85420) would be a good idea. I read online that it is very similar to Hylomar Blue and should be a better choice than most gasket sealants or RTV.
Permatex® PermaShield™ Fuel Resistant Gasket Dressing & Flange Sealant
Specially formulated for superior fluid resistance, this polyester urethane based gasketing compound withstands extreme temperature changes without hardening. Its non-setting, non-hardening character remains tacky even with rapid changes in temperature, enabling repeated assembly and disassembly...
www.permatex.com