Re: Sealing Manifold Gaskets???

Posted by Packard Newbie On 2019/10/28 22:20:25

Hi Paka40, Can I ask why your are completely convinced it is an intake 'whistle'?? Not that a bad intake leak couldn't create a whistling noise, but I would think it more likely to be an exhaust leak. One thing you can do is, with the engine cold, start it up and you will have at least a minute before things get too hot to touch. If you put your hands around the the exhaust manifold to intermediate pipe joint, you'll definitely be able to feel a leak there, if its exhaust. you can also CAREFULLY run a finger around the manifold to block joint and see if anything is 'blowing' (if its whistling, it should be blowing enough to feel the leak) Then as Wes is suggesting, you can spray the intake/exhaust where it enters the engine to see if either the whistling stops or is somewhat interrupted; that would be the leak source. And, Wesley, I am trying to remember, in that join between intake and exhaust manifolds, is there any 'live' intake or exhaust flow there? - I seem to remember it just being a 'blank' connection. Yes, there's a gasket there, but what would leak there if it wasn't sealing?? I'm getting forgetful in my old age! And, definitely be careful Paka40, as things can heat up quite quickly and you don't want to get burned!! Chris