Thread size

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Model T Ford Forum: Forum 2015: Thread size
Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Strickling on Tuesday, June 02, 2015 - 08:26 pm:

What is the thread size of the plug in the rear axle housing 1911 ?? Thank you


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Tuesday, June 02, 2015 - 10:50 pm:

The Northern Colorado Model T Club has a thread size chart on their website. The oil plugs in both oil pan and rear axle are 3/4", 20 tpi for all years. 1909-12 had a slotted screw.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Strickling on Wednesday, June 03, 2015 - 07:44 am:

Thanks Roger


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Wednesday, June 03, 2015 - 07:46 am:

Here's the chart: http://clubs.hemmings.com/ncmtc/Technical/Bolts_nuts_threaded_items.pdf


Top of pagePrevious messageNext messageBottom of page Link to this message  By R.V. Anderson on Wednesday, June 03, 2015 - 09:13 am:

Close, but not quite: It's 3/4 x 24. Same as the crankcase drain.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Wednesday, June 03, 2015 - 09:24 am:

Thanks for the correction. I still think the bolt and thread chart is a great initiative by Joe Boyers and Robert Ducharme in the Northern Colorado Model T club and I think they would welcome corrections and additions of what is missing. Steve Jelf sent some corrections to them that was included in the document in 2013.
http://clubs.hemmings.com/ncmtc/officers.htm


Top of pagePrevious messageNext messageBottom of page Link to this message  By Stan Howe Helena, Montana on Wednesday, June 03, 2015 - 09:38 am:

Some, not all of the 26/7 axles use a 1/2 NPT (pipe thread) plug the same as the spark plugs. The plug has a recessed square 3/8 inch to remove it.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Smith on Wednesday, June 03, 2015 - 10:43 am:

I bought a tap off ebay. Handy to have, especially for the early T cup oil crankcases.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Strickling on Wednesday, June 03, 2015 - 01:28 pm:

It is 24 TPI


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