I'm replacing my water pump tomorrow and wanted to know if the Drivers side bottom bolt is the only bolt that gets sealed because it goes through the water jacket? Also, do any others need to get sealed? What kind of sealer works the best, I've read that Permatex 300 is good but, don't use any silicone type because it eventually wears out.

 

We've always gooped all 4 just because, as far as sealant-whatever was laying around, sometimes the permatex blue, and when I did my motor rebuild I used permtex black cause it was there, no leaks thus far.

 

hello, i use liquid teflon (white liquid in a squeeze bottle) i coat all four bolts. best of luck, tom

 

Thanks guys, I used "Permatex" Water pump and Thermostat Housing RTV silicone sealant on all four bolts even though the drivers side bottom bolt is the only one that goes through the water jacket (found that out when I removed that bolt and coolant seaped out). I decided to coat all four bolts because after I removed the bolts I saw some factory sealant on each bolt. I thought, since the factory put sealant on each bolt, I should do the same.