These should not give difficulty with leaks, with sealant or without.
When these persistently leak I question the integrity of the expansion plugs at the ends of the camshafts. The oil volume passes through the cams and if these plugs are dislodged the pressure will force oil out or even dislodge the green plugs completely.
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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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