Drilled NH Question

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Model T Ford Forum: Forum 2011: Drilled NH Question
Top of pagePrevious messageNext messageBottom of page Link to this message  By Paul Kennedy on Thursday, December 22, 2011 - 01:25 pm:

I think i know what it means, but can someone tell me more?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Vaughn on Thursday, December 22, 2011 - 02:39 pm:

Paul - It means that the passageways have been cleaned and re-sealed.



Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield, KS on Thursday, December 22, 2011 - 02:53 pm:

Here's a recent thread on the subject with some great information and suggestions:

http://www.mtfca.com/discus/messages/179374/254361.html?1324502921


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Thursday, December 22, 2011 - 03:22 pm:

Drilling a swayback NH can also be a cheap way to get a staight through..
Bob Cascisa in Poulsbo, WA posted some test reports in 2009:

http://www.mtfca.com/discus/messages/80257/97341.html?1246901705
http://www.mtfca.com/discus/messages/80257/100660.html?1249417571
http://www.mtfca.com/discus/messages/80257/103265.html?1250997329


Top of pagePrevious messageNext messageBottom of page Link to this message  By Paul Kennedy on Thursday, December 22, 2011 - 03:23 pm:

OK, I thought it had to do with removing casting material from where the needle valve is mounted to give it a more straight through flow.


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