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  #1  
Old 09-22-2018, 09:03 AM
pilot28906 pilot28906 is offline
 
Join Date: Apr 2006
Location: Murphy, NC
Posts: 421
Default Engine Hanging Problem (bolt spacer)!

We just started hanging the engine and the spacers that the bolts go through for the mount are too small. The -7 bolts will not go into the ID of the metal spacers. Do the spacers get reamed or do I have the wrong spacers? Any help would be appreciated.

Thanks,
John
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  #2  
Old 09-22-2018, 09:08 AM
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Mel Mel is offline
 
Join Date: Mar 2005
Location: Dallas area
Posts: 10,082
Default

Sounds like you have the wrong spacers. They should slip right through. They should not even be a tight fit.
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  #3  
Old 09-22-2018, 09:29 AM
pilot28906 pilot28906 is offline
 
Join Date: Apr 2006
Location: Murphy, NC
Posts: 421
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The spacer part number matches the drawing. The I.D. of the spacers are .4255". How large is the ID supposed to be?
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  #4  
Old 09-22-2018, 04:23 PM
jrs14855 jrs14855 is offline
 
Join Date: Apr 2008
Location: Lake Havasu City AZ
Posts: 2,123
Default Bushings

The generic id for the bushings would be around .447. AN7 bolt would be around .435/.436. AN bolts typically measure about .0015/.002 under the nominal size. Size of the spacer is not critical, only the length is important. You can make some spacers from 9/16" x .058 4130 tubing.
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  #5  
Old 09-22-2018, 05:28 PM
pilot28906 pilot28906 is offline
 
Join Date: Apr 2006
Location: Murphy, NC
Posts: 421
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I reamed the ID and they worked fine.
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