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Copper Exhaust Manifold Dent Repair

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QuickChange
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Location: Spokane,WA

Copper Exhaust Manifold Dent Repair

Post by QuickChange » Sat Apr 02, 2016 6:08 pm

We have a Chrysler Crown M-27 copper exhaust manifold that has a couple of dents. Anyone have a repair source? We're in Spokane, WA.
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John Whitcomb
ACBS - Inland Empire
1959 Chris Craft 18' Capri
1968 Chris Craft Cavalier Cutlass 26' Twin Engine
1948 Ventnor 18' Utility
1959 Chris Craft 17' Ski (donated to school)
1964 Chris Craft 38' Sea Skiff SF (sold)
1948 Chris Craft U-22 (sold)
1955 Crooks Ski 15' (sold)

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mbigpops
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Re: Copper Exhaust Manifold Dent Repair

Post by mbigpops » Sat Apr 02, 2016 6:39 pm

You could try it yourself with a map gas torch and tailpipe expander. If you get the cheap Harbor Freight expander buy some good heat tolerant o rings as theirs will break in the pipe.

If you do not want to do it yourself you could try a muffler shop.

Mark
1953 CC Rocket Runabout "Rocket Man"

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Doug P
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Re: Copper Exhaust Manifold Dent Repair

Post by Doug P » Sat Apr 02, 2016 8:37 pm

Call House of Hose on Sprague. They could direct you.

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QuickChange
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Re: Copper Exhaust Manifold Dent Repair

Post by QuickChange » Sun Apr 03, 2016 11:41 am

Thanks for the suggestion. The manifold has an inner liner for the water jacket, so need to attack it from the outside. I could always braze a stud on it, heat it up, and try to pull it out. Don't know if my skill set is at that level but could probably figure it out. A good body man might be able to do it.

Will contact the House of Hose. Great idea!

Thanks again!
John Whitcomb
ACBS - Inland Empire
1959 Chris Craft 18' Capri
1968 Chris Craft Cavalier Cutlass 26' Twin Engine
1948 Ventnor 18' Utility
1959 Chris Craft 17' Ski (donated to school)
1964 Chris Craft 38' Sea Skiff SF (sold)
1948 Chris Craft U-22 (sold)
1955 Crooks Ski 15' (sold)

Tightline5
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Location: Campbell Co. Va.

Re: Copper Exhaust Manifold Dent Repair

Post by Tightline5 » Mon Apr 04, 2016 7:16 pm

Remember any time you heat copper you may permanently lose what tensile strength you have in the tube. It can not be quenched with oil or water to harden. This is why when I have an exhaust pipe bent, I only heat the bend area and as you stretch the pipe it will re harden that area.
Phil Jones

1948 US Plywood Executive Runabout Hull #1 "WeldWood"
1954 Racing Runabout R-496
1957 Deluxe Runabout D-17-2062
"MISBEHAVIN"

jahearne
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Re: Copper Exhaust Manifold Dent Repair

Post by jahearne » Wed Apr 27, 2016 8:50 pm

A stud welder dent puller is the only thing I can think of.

http://tinyurl.com/h85e863
John & Wendy

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Doug P
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Re: Copper Exhaust Manifold Dent Repair

Post by Doug P » Wed Apr 27, 2016 10:25 pm

jahearne wrote:A stud welder dent puller is the only thing I can think of.

http://tinyurl.com/h85e863
Can you introduce me to that studwelder? 8)

Tightline5
Posts: 451
Joined: Thu Aug 30, 2007 7:49 pm
Location: Campbell Co. Va.

Re: Copper Exhaust Manifold Dent Repair

Post by Tightline5 » Thu Apr 28, 2016 6:47 am

At the SML chapter workshop we learned that someone in your area that repairs musical instruments (Trumpets. or clarinet, etc.) will be able to repair your pipe
Phil Jones

1948 US Plywood Executive Runabout Hull #1 "WeldWood"
1954 Racing Runabout R-496
1957 Deluxe Runabout D-17-2062
"MISBEHAVIN"

jahearne
Posts: 419
Joined: Mon Nov 03, 2008 4:31 pm
Location: San Francisco

Re: Copper Exhaust Manifold Dent Repair

Post by jahearne » Thu Apr 28, 2016 7:59 pm

Doug P wrote:
jahearne wrote:A stud welder dent puller is the only thing I can think of.

http://tinyurl.com/h85e863
Can you introduce me to that studwelder? 8)
I burned a hole in his apron, now he won't talk to me anymore. :)
John & Wendy

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