Originally Posted by
WD40
OK, so here I am about to remove the 2 breather covers. This shows everything I had to remove, including the MAF as the breather hoses route the air back into the intake manifold via a fitting that's impossible to get to without removing the MAF.
I plugged the open holes with blue shop towels so nothing would fall onto the camshafts while I cleaned the sealing surfaces.
Here are the 2 breather covers all cleaned up & ready to be reinstalled.
to be continued...
When I did this repair back in 2010, I filled the breather covers with the RTV (I did use a different product than most folks have used & we'll leave it at that) and then used the blade on my pocket knife to smooth out the amount of product within the groove, removing any excess. I didn't want a large amount of RTV showing after the breather covers were installed & torqued down. And I check the mounting screws, along with the valve cover screws, every 2 years for proper torque. I've found out that these mounting screws loosen up somewhat over time, which I believe contributes to the leaking issue. Ever since that repair and the Preventive Maintenance I perform, no signs of any leaks. I've never changed the valve cover gaskets.