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390 pilot bushing

September 8 2013 at 3:33 PM
zhlange  (Login zhlange)
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The flange on the crank is 46.59mm. The outside diameter of my pilot bushing is 47mm. Can a machine shop shave off a millimeter or two? Or I need to get another bushing with the correct dimension. Thanks.

 
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Wreckless Warren
(Login pcode390)
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Re: 390 pilot bushing

September 8 2013, 3:53 PM 

Throw it in the freezer for a while before you install it. Work quickly. ww

[linked image][linked image][linked image]

1965 Galaxie 500XL 445ci Stroker C-6
1965 Galaxie 500XL 390ci P-Code, 4-Speed
2001 Ford F-150 SuperCrew 5.4L
2006 John Deer X320 Garden Tractor


    
This message has been edited by pcode390 on Sep 8, 2013 3:54 PM


 
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origin corp
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Re: 390 pilot bushing

September 8 2013, 4:11 PM 

thats .016 inches different....unless your freezing it to -200 its not going to shrink that much.

yes it can be skimmed, about a thou press fit would be dandy


    
This message has been edited by origincorp on Sep 8, 2013 4:12 PM


 
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zhlange
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Re: 390 pilot bushing

September 8 2013, 5:17 PM 

The bushing suppose to be snugged and flushed into the outer crank flange correct? Thanks.

 
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Brent Lykins, B2 Motorsports
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It's a press fit....

September 9 2013, 3:10 AM 

Not a .016" press, but about a .001" press as Fred said.

Brent Lykins
B2 Motorsports, LLC







 
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Anonymous
(Login zhlange)
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Not all the way flushed...

September 9 2013, 12:16 PM 

Will it be ok? I drove the bushing using a pipe with the same outside diameter (happens to be the pipe that I used when I installed the tail housing oil seal of my toploader) of the bushing...Carefully... It protrudes a millimeter from the flange.


    
This message has been edited by zhlange on Sep 9, 2013 12:16 PM


 
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zhlange
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Pilot bushing...

September 9 2013, 7:24 PM 

http://forums.vintage-mustang.com/vintage-mustang-forum/671842-1968-fastback-restore-2.html

This is the picture of the pilot bushing. Is this too pronounced? Or negligible? The picture is at the bottom of the page. Thanks.


    
This message has been edited by zhlange on Sep 9, 2013 7:25 PM


 
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Brent Lykins, B2 Motorsports
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Not a member of that site...

September 10 2013, 7:30 AM 

...so I can't see the pictures, but if I remember correctly, they usually stand proud by a little bit.

Brent Lykins
B2 Motorsports, LLC







 
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zhlange
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Re: Not a member of that site...

September 10 2013, 2:55 PM 

Sorry. I don't know how to post pics here. But thank you for the info.

 
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Ross
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Looks fine to me

September 10 2013, 8:27 AM 

Reach in there with pick to see if it is bottomed if it keeps you awake at night. However it it doesn't hit anything and fits tightly, it'll be fine.

I usually smack them with a big hammer and a block of wood to keep from damaging it



[linked image]
---------------------------------
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 445 cid FE, headers, RPM intake, 3310, 4 speed

 
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zhlange
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Re: Looks fine to me

September 10 2013, 2:54 PM 

I will try to hammer it down again but I think it bottomed out at the back of the flange. Thanks again for your help.


    
This message has been edited by zhlange on Sep 10, 2013 2:55 PM


 
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