EXHAUST MANIFOLD REPAIR ????

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Model T Ford Forum: Forum 2013: EXHAUST MANIFOLD REPAIR ????
Top of pagePrevious messageNext messageBottom of page Link to this message  By Daniel M. Chapasko on Tuesday, June 04, 2013 - 09:15 am:

Can anyone give me advise on how to fix a "bent" exhaust manifold that will not fit correctly? Is there a standard way to make this thing fit? Thank you.


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Danuser on Tuesday, June 04, 2013 - 09:20 am:

buy a new one


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dave Huson, Berthoud, Co. on Tuesday, June 04, 2013 - 09:37 am:

Daniel:

You are welcome to use my exhaust manifold fixture to heat and straighten your exhaust manifold.

picture


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Tuesday, June 04, 2013 - 09:38 am:

Beware of my mistake. Fortunately it was a 26-27, not one of the rare ones.

http://dauntlessgeezer.com/DG82.html

http://mtfctulsa.com/Tech/manifold.htm

http://www.lbmtc.com/pages/exhaust.htm


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Tuesday, June 04, 2013 - 09:39 am:

If you have lots of acetylene and oxygen and time you can try straightening the manifold hot. Beware it'll break easily during the process, let the weight of a wrench screw it in alignment when it's hot enough, any extra pressure can break it.

Here is a thread with lots of links to pictures & discussions on the subject: http://www.mtfca.com/discus/messages/331880/344903.html?1362171562


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Hatch on Tuesday, June 04, 2013 - 09:47 am:

Roger: You should add one word to your post "FREE". Put it in front of acetylene.

Buy a new manifold. It is cheaper. Dan


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, June 04, 2013 - 10:02 am:

How do you straighten it when it's warped on the other axis? I had one that wouldn't seal because the two center ports were bowed out towards the passenger side further than the end ports.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Norman T. Kling on Tuesday, June 04, 2013 - 10:27 am:

Seth, that's easier than the usual drop in the back. You put the manifold on the car and run it with a lean fuel mixture and retarded spark until it becomes red hot, then tighten the studs as tight as you can without breaking them off and let it cool down. Next thing to do is replace the exhaust valves! Easier and cheaper to replace the manifold.
Norm


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, June 04, 2013 - 10:39 am:

Lol, I actually had another exhaust manifold in my small pile of parts. I'm pretty sure my granddad knew that the manifold on the car was warped but hadn't gotten around to installing the 'new' straight one.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jerry VanOoteghem on Tuesday, June 04, 2013 - 01:40 pm:

http://www.modeltford.com/item/3060B.aspx


Top of pagePrevious messageNext messageBottom of page Link to this message  By Gene Carrothers Huntington Beach on Tuesday, June 04, 2013 - 01:49 pm:

I helped make and give demo at Long Beach club meeting on how to straighten the manifolds.

It's very easy and works like magic. Check out the two videos by Tulsa and LBMTC.


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