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Connection of exhaust pipe to manifold

leaks

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Peter (NY)

11-23-1999 15:35:16

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I have an exhaust leak at the connection of the pipe to the manifold. I have the genuine clamp. The manifold is a replacement, but I suppose it is the correct part. Does anyone have any tricks? Is there a non-textbook handy solution? I already tried packing with aluminum foil, and tightening on it. That didn't help.

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sequoia11buck

05-06-2002 18:47:49

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

I have a 1950 Buick with a straight eight. Three cylenders are leaking exhaust where the manifold meets the head. I figured I'd scrape out what's left of the old gasket and put in a new one but much to my surprise, there is no exhaust manifold gasket. Is ther anyone out there who has some advice for me as to how I could eliminate those leaks?

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NCN in TX

11-24-1999 11:01:15

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

I tried all sorts of things and finally got some aluminum tape used for sealing joints in A/C and heating ducts. Cut a small piece to fit, wrapped the joint, replaced the clamp and put her back in service. Ten minute job and works great. No leaks since. Good luck.

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ZANE

11-24-1999 03:56:30

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

If you can find a catalogue that sells Model A Ford car parts you can order a thin aluminum seal that is espedially made for this problem. The Model A Ford has the same sort of exhaust attachment as the N tractor and the size is I think the same too.
I believe that you could cut out a shim from some thin alumunum stock of some sort and then taper it with a ball peen hammer and do the same thing.
Could probably cut it with a big pair of scizzors or shears.

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Nolan

11-24-1999 03:49:02

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

It's a two step process.

1, remove the exhaust and attend to the mating surfaces. As in wire brush them both, especially the manifold, and then with some pliers, re-shape the exhaust pipe flange so that it actually looks like a flange and has a chance at matching the exhaust manifold.

2, use a material to aid the sealing. My personal favorate is Permatex Ultra-Copper. Wonderfull stuff. It's a do everything gasket sealer/maker that is oil and exhaust heat tollerant. Slather a rather thick bead of this onto the flange/manifold mating surface, and clamp it together. I'd suggest letting it cure for a few hours before firing up the tractor. Especially if your tractor backfires.

That's it, you're done and sealed up. This works even if you've ripped the exhaust pipe off bushhogging, ran over it, and then let the blades of the hog beat on it for few seconds. 'Course, if you do that, it takes a bit longer with the pliers trying to straighten it. :-)

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2Nken (ga)

11-25-1999 08:58:26

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Re: Re: connection of exhaust pipe to manifold - leaks in reply to Nolan, 11-24-1999 03:49:02

Nolan, was this repair technology based on personal experience? ;^)

Tractor On!

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John (NL)

11-24-1999 01:23:12

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

When I asked the same question a few months ago someone suggested using a product called "Coperweld" that you could get at an auto parts store. It's on my list for winter maintenance so I can't tell you if it worked or not yet.

john

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marv

11-23-1999 20:44:35

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

In the good old days when gas was heavily leaded, the manifold joint would self-seal due to carbon buildup. With today's decaf gas that probably won't happen. You might try red heat proof silicone sealer.

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Sam (Mo.)

11-23-1999 17:28:42

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

I shimmed mine a couple of years ago with a soft aluminum strip cut from a beer can. It works fine, no leaks.

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dave#1

11-23-1999 15:57:31

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

This is a long shot but, is the clamp on up side down?, I "Think" the "V" inside the clamp is off-set?

Hope this helps.

later,dave

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scott magyar

11-23-1999 15:42:43

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

Make a seal out of steel wool-then place it between the flange and the manifold.I have this on my 8n for 2 years with no leaks.

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11-23-1999 15:40:27

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Re: connection of exhaust pipe to manifold - leaks in reply to Peter (NY), 11-23-1999 15:35:16

The clamp has a right-side up to it. Make sure it's installed the right way. If that doesn't help you might try modifying the tailpipe flange or using some shim material around it. It should be a good wedge-fit.

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