the right RTV for a oil pan?
the right RTV for a oil pan?
ok so im going to put my new greddy oil pan on in the next few days but i dont know what RTV to use. there is black, red, blue, copper, and so on but there doesnt seem to be many differances on the boxes so i was hopeing to get some anwsers from here. what would be the best for my oil pan? what are some good uses for the others? thanks alot.
blue, the nissan stuff, red all work. make sure all the old oil is off of the surface and make a ring around each bolt hole with the RTV, as well as lay a consistent bead all the way around it. it should have some sections were it is pushed out a little to allow you to put more RTV in, otherwise it would all get pushed out when you tightened it.
so should i go to nissan to buy it then? or is the blue stuff at the auto parts store the same kind of stuff? what i was going to do was make a fat bead around the whole thing but are you saying i shouldnt go over the bolt holes and instead go around them? yea the oil pan, between each bolt hole, has a groove for the rtv.
Follow the FSM, but I think it says to go around the bolt holes on the inside. Contiinuous bead all the way. Blue is probably OK but for oil seals I prefer something a little more robust, like gray, red or black. The tougher and more high-temp the RTV the thicker and harder to work with. You can use Permatex brand stuff from Pep Boys.
When you bolt up the pan it'll basically have the same RTV bond thickness no matter how much RTV you put down. Like 240kid said, that's what the groove is for. So if you put way too much it'll squeeze out inside and outside the pan.
When you bolt up the pan it'll basically have the same RTV bond thickness no matter how much RTV you put down. Like 240kid said, that's what the groove is for. So if you put way too much it'll squeeze out inside and outside the pan.
Re: (D1SR240)
The guy from permatex just came and talk to our class about a week ago.. he said black is best for domestics, or on engins with dissimilar metals that epand at diffferent rates(its more elastic when dry) or grey for imports with similar metal types for the engine were the metal epands at a similar rate, and a stiffer gasket can be used...
well i have a sr20 in mine and the oil pan is cast aluminum....i dont remember what kind of block it has but it might be aluminum block??? if it is then i guess the red stuff would be ok....right? but it seem black would be good all around. i was just trying to get the highest heat range but still would wrok well. now that i know about the whole expanding of metals and the gaskets being fexable or not. didnt even think about that before. it good information i got here and im sure its going to help alot of people.
red can supposedly take exhaust temps they claim but I dont know about that. the bottom line is gray is probably best for most of these cars imho black is fine though too.as far as heat range for something like an oil pan or anything other than an exhaust for that matter gray and black are rated far higher than any normal engine should get
According to the Permatex site Red can go up to 650*F intermittently. Exhaust gasses can rise above 2000*F. Ever seen a turbo glow red? It starts go glow at around 1250*F.
http://www.permatex.com/produc...asket
http://www.permatex.com/produc...asket
it suggests the grey on the website so i guess ill go with that one it seems to be good for just bout everything you can use that stuff on except exhust manifolds. one one they make that might be good for that is the ultra copper one. i think the red it just for high temps now and wouldnt do what i want it to do. thanks for the link. i totally forgot about looking at the website. shoulda done that first but atleast this way people like me can find the anwser here.