What size is the exhaust thread on OS 91 Surpass  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> O.S. Engines Support >> What size is the exhaust thread on OS 91 Surpass
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What size is the exhaust thread on OS 91 Surpass - 9/15/2002 1:39:55 PM   
Capt Jim


 

Posts: 1116
Joined: 4/14/2002
From: Boca Raton, FL, USA
Status: offline 		Exhaust system routing can be a problem with the limited options available with "stock" piping. I'd like to be able to thread my own pipes so as to be able to create application specific configurations. Can you advise me as to appropriate pipe material, sources, etc, and thread size? Thank you.

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Captain Jim
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What size is the exhaust thread on OS 91 Surpass - 9/17/2002 8:47:14 PM   
Bax


 

Posts: 12634
Joined: 4/26/2002
From: Champaign, IL, USA
Status: offline 		Captain Jim,

The thread size in the cylinder head is metric. 11mm diameter with a 0.75mm pitch.

We're sorry, but we'd not have any idea where you could locate materials. Most forms of aluminum or copper tubing will work, but you'll have a trial locating thread dies. You may wish to check with a local machine shop for advice.

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(in reply to Capt Jim)
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> O.S. Engines Support >> What size is the exhaust thread on OS 91 Surpass
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