my repair manual calls for a bead of rtv around the mating surfaces on the intake right before i clamp down the thermostat housing to it and warm up the engine. ive been told i need , and sold a paper felpro gasket obviously designed to fit in the same place. this is on a 1987 Pontiac with a 307 engine. am i supposed to use both? as in, the paper on top of the rtv?
I won’t go as far as to say you’re “suppose” to use both but from my experience it’s a really common practice, especially on older motors where there will be imperfections (straightness, pitting, etc). If I were to install it, I usually draw a thin bead both sides of the gasket, then massage all around the gasket making sure any bubbles are gone. That way the gasket stays put and you have a thin layer of rtv sealing your housing and won’t slip out of alignment, then Follow the manual step afterward. In emergency situations, rtv alone may seal your housing but if you have a gasket you’re better off using it so it has something to sandwich together as you torque down the bolts. Keep in mind rtv will be difficult to remove if you service it in the future but that’s just part of the job. Hope that helps and thanks for watching.
my repair manual calls for a bead of rtv around the mating surfaces on the intake right before i clamp down the thermostat housing to it and warm up the engine. ive been told i need , and sold a paper felpro gasket obviously designed to fit in the same place. this is on a 1987 Pontiac with a 307 engine. am i supposed to use both? as in, the paper on top of the rtv?
I won’t go as far as to say you’re “suppose” to use both but from my experience it’s a really common practice, especially on older motors where there will be imperfections (straightness, pitting, etc). If I were to install it, I usually draw a thin bead both sides of the gasket, then massage all around the gasket making sure any bubbles are gone. That way the gasket stays put and you have a thin layer of rtv sealing your housing and won’t slip out of alignment, then Follow the manual step afterward. In emergency situations, rtv alone may seal your housing but if you have a gasket you’re better off using it so it has something to sandwich together as you torque down the bolts. Keep in mind rtv will be difficult to remove if you service it in the future but that’s just part of the job. Hope that helps and thanks for watching.
Great system. Thanks.
whats the name of this product
If you go to an auto part store they should have gasket paper. It comes in felt, cork, or other materials
so do i need to put silicone also?