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EGR tube clamp

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Well-known member
Joined
Mar 20, 2002
Messages
161
Location
Las Vegas, Nv
Corvette
1986 Convertible Dark Red Metallic
Anybody got any tips on how to get that squeeze clamp to the exhaust manifold to squeeze tight enough to stop leaking? I can hear a hissing leaking sound and am getting exhaust soot on the side of the head and spark plug and wires. I've squeezed it about as tight as I can yet it still twists and leaks.

Thanks in advance for any help or insight.
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,236
Location
Hermosa Beach, CA
Corvette
1987 Z51 Silver Coupe
I have not a clue as to the clamp to which you refer. Please be a little more specific.
 

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Well-known member
Joined
Mar 20, 2002
Messages
161
Location
Las Vegas, Nv
Corvette
1986 Convertible Dark Red Metallic
Ken

Where the EGR tube attaches to the exhaust manifold there is a squeeze clamp just above the manifold. It is normally hidden by the silver heat shield over the tube/pipe. Mine was torn so I ordered a new one and saw the exhaust leak from the pipe/tube when I took it off to replace the shield. I want to fix the leak before I install the new cover.

Thanks again to all.
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,236
Location
Hermosa Beach, CA
Corvette
1987 Z51 Silver Coupe
I see. The '86 must be a different arrangement; mine is bolted to the manifold. Sorry Chris, somebody else will chime in before long.

_ken
 

Paul G

Well-known member
Joined
Aug 27, 2001
Messages
200
Location
Griffith, IN, USA
Corvette
96 CE LT4 Convertible
Mine is bolted too. Can you post a pic?
 

fixvet

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Joined
Apr 4, 2002
Messages
139
Location
Clever, MO
Corvette
1998 Two Tone Torch Red& Black Coupe
Yeah, I'm bolted down too!
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
I just checked my early 86. I've got a metal tube that runs to another metal fitting that sticks out of the manifold by the last cylinder on the right. The fitting on the manifold has a flange on the end. There's a hose clamp sitting right on the flange that squeezes the one tube around the other. No squeeze clamp (I'm assuming you're talking about the single wire clamp with circular ends to press on?) and no soot, either. Try one of those worm-gear hose clamps instead...
[RICHR]
 
Joined
Mar 3, 2001
Messages
314
Location
Andover, MA USA
Corvette
1986 "Bright Red" Coupe
There is no way to squeeze that clamp shut that I can find. I actually have the correct tool for those kind of clamps, it's an 'OETIKER" brand clamp. The problem is that you just can't get the tool in place to crimp the clamp. I used a small muffler clamp, I think a 1" diameter, not sure. I had to modify the ears on the clamp saddle by shortening them. Then get some locking nuts to replace the ones that come with the clamp, the all metal type stannless if you can get them, not the ones with the nylon insert. Pop the pipe joint apart, put some muffler cement on the joint faces and then assemble. Line up the muffler clamp saddle so that it straddles the joint and tighten slightly, you dont want to crush anything and distort the joint, The saddle of the clamp will keep the joint together. I used this fix on mine about 4 years ago and don't have any leaks yet.
 

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Well-known member
Joined
Mar 20, 2002
Messages
161
Location
Las Vegas, Nv
Corvette
1986 Convertible Dark Red Metallic
Thanks Janciello!!!! I did exactly what you suggested and it is sealed tighter than a drum now. Thanks again!!!
 

69MyWay

Well-known member
Joined
Jul 3, 2001
Messages
4,364
Location
Auburndale, Florida
Corvette
1969 Killer Shark
I had this headache as well on my 86 vert. I tried to clamp the clamp, and went through three or four of them new from G.M. with the same bad results.

I am glad you got yours fixed. Here is what I did. I cut the crimping part off the crimp clamp, leaving the ring portion. I fashioned a heavy duty hose claim to saddle the ring portion. I found it critical for alignment and sealing to have the ring around where the two flanges join. I then simply cranked the clamp down in place. It worked. This is after a week or so of banging my head against a wall. There is just not enough room in there to work on it and get a really solid bite on the stock style claimp.

I saw the car a week ago at a local car show event. I should have asked the most recent owner to pop the hood so I could see if it was still connected. That was back in 97 when I did the new clamp.
 

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Well-known member
Joined
Mar 20, 2002
Messages
161
Location
Las Vegas, Nv
Corvette
1986 Convertible Dark Red Metallic
I saved that clamp. I will try your suggestion if it starts to leak again. Thanks for the input!!!
 

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