So I posted a few months ago asking what I should put in the slip joints on my exhaust manifold to seal it when I put it back on my car and no one really seemed to know. But I've got a friend that works at an auto store and he asked around a bit and ended up getting me some Copper Permatex. Just wanted to get a second or third opinion before I put it back together, does this seem like a good thing to use?
On all the slipjoints on my Pete's exhaust, I use the orange high temp permatex stuff. I'd ***ume the copper stuff would be as good or better.
http://www.permatex.com/products/Au...r_Spray-A-Gasket_Hi-Temp_Adhesive_Sealant.htm I think this stuff only works with an actual gasket, I am ***uming that your "slip joints" are cast in the manifold sections...? What kind of engine are you using? I have only seen slip joints used on big truck engines with multiple inline heads, and too the best of my memory right at this moment, I don't recall anything being used to improve the "as cast and machined" fit.
On heavy equipment multipiece exhaust manifolds, we just used a glop of neverseize. Once the oils burned out, the remaining materials made a good seal and they were stilll free to move.
Sure would be nice to know what engine ???and I'm an old geezer,never heard of any thing liquid for exhaust..just gaskets...
The high temp orange and copper are perfectly fine for exhaust sealing. They work excellant on both slip joints and as gaskets. High temp anti seaze is also very common in use on slip joints as it will seal smaller gaps, and does keeps joints from rusting up and sticking together when not being used for long periods of time. So to answer your question, Yes the copper will work fine.
<TABLE cellSpacing=0 cellPadding=6 width="100%" border=0><TBODY><TR><TD cl***=alt2 style="BORDER-RIGHT: 1px inset; BORDER-TOP: 1px inset; BORDER-LEFT: 1px inset; BORDER-BOTTOM: 1px inset">Originally Posted by holeshot Ghoul...slip joints?...pop. </TD></TR></TBODY></TABLE>What? Hey Ghoul, never mind pops(holeshot)...he tries hard but doesn't always make sence!! I think what he meant was what are slip joints? but like I said, he tries hard!! No offence pops!!!
I've never tried the permatex copper in the squeeze tube, the brush on type will work fine, and should say something on the label about being used as an antiseize.
Hi Brittany. It's been a while. Glad to see you decided to keep the car you really have a "feelin" for, instead of buying that Dodge...or was it a Plymouth? Anyway, I saw your previous thread on this subject, and didn't reply 'cause the thread was a couple of weeks old, and I ***umed that you had that Buick inliner together already. But I'll reply now. I've had a couple old Buick Roadmasters and a Special that I've had to mess with the three-piece exhuast-manifolds on. They are kind of a PITA, 'cause as you know, they need to be able to move slightly in relation to each other, yet you want them sealed. Initially, I tried using an exhaust sealer in a tube, and that worked pretty good for a while, but after a time, the stuff would crack, and fall out, then she'd be leakin' again. I finally found something that worked quite well. A buddy of mine had some header-insulating-tape left over from a project of his that I used. It stayed in place, didn't crack, and kept the manifold from leaking at all. It was the type that can be soaked first to make it more pliable. After soaking, wrap the male portion, overlapping the end of the joint by about 1/2". As you insert the male portion of the manifold into the female portion, be sure to tuck that overlapped bit of tape so it gets pinched, and holds the rest of the tape in place. You're gonna have to experiment with the amount to wrap it with, 'cause it seems that these manifolds are all of different tolerances at the slip-joint...some are tighter than others. If you don't build up the thickness enough, it won't seal perfectly. If you wrap too much on there, they won't go together all the way. It's a bit of a "press-fit", but refrain from hitting the manifold with anything, and risking cracking it. Best to get a strong guy, and have him help you press the pieces together. Make sure whoever helps you has at least an hour to mess with the thing, 'cause it's a trial and error operation, getting just the right thickness of tape on there. Try to get the separate pieces lined up well as you put them together, so that you're not trying to reposition them afterward. Having the manifold pieces with the mounting-flanges against a flat surface as you ***emble them will help. Good luck. Let us know how it goes. - Rick
Does the fact that I couldn't help laughing at "insert the male portion into the female portion" and "some are tighter than others" make me immature?
I dont suppose now would be a good time to suggest that the male and female parts be clean and smooth, and maybe a touch of the sealants mentioned earlier be used as a lubricant on the header wrap? Works pretty well on one of my dirt bikes that had a problem exhaust joint.
The Jalopy Journal
