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74" shovel head piston to wall clearance

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Old Apr 14th, 2009, 11:02 PM     #1
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74" shovel head piston to wall clearance
I am building a 1974 FLH with the original 74" engine new V Twin crank, I am using V Twin replacement piston's .040 over, what should the piston to wall clearance be set at.
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Old Apr 14th, 2009, 11:56 PM     #2
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Re: 74" shovel head piston to wall clearance
Quote: Originally Posted by usa68 View Post
I am building a 1974 FLH with the original 74" engine new V Twin crank, I am using V Twin replacement piston's .040 over, what should the piston to wall clearance be set at.
Download this and see if the specs are in there:

Shovel Manual 66-84 - HD Talking Downloads Page - Harley Davidson Community

On my bikes ('91 Dyna and '03 UC) the piston "fit in cylinder" specs are:

Dyna:

0.00055-0.00165 in. (loose - Mahle)
0.00075-0.00175 in. (KSG piston)

UC:

0.0006-0.0017 in. (Early piston)
0.0014-0.0025 in. (Late piston)

TQ
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Old Jul 30th, 2009, 03:47 AM     #3
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Re: 74" shovel head piston to wall clearance
...can't download!! -need to do 50 posts
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Old Aug 7th, 2009, 09:45 AM     #4
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Re: 74" shovel head piston to wall clearance
I think its just twenty posts so start talking to people and enjoy the site.
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Old Aug 12th, 2009, 09:39 AM     #5
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Re: 74" shovel head piston to wall clearance
You're right speedyron! -But it's a little hard for me producing english, i'm from Denmark and i failed english in school....

Hopefully i will learn something on this great site!!
Last edited by v2rumble; Aug 12th, 2009 at 09:44 AM.
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Old Aug 30th, 2009, 01:12 PM     #6
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Re: 74" shovel head piston to wall clearance
Quote: Originally Posted by TQuentin1 View Post
Download this and see if the specs are in there:

hdtalking.com/downloads.php?do=file&id=152"]Shovel Manual 66-84 - HD Talking Downloads Page - Harley Davidson Community

On my bikes ('91 Dyna and '03 UC) the piston "fit in cylinder" specs are:

Dyna:

0.00055-0.00165 in. (loose - Mahle)
0.00075-0.00175 in. (KSG piston)

UC:

0.0006-0.0017 in. (Early piston)
0.0014-0.0025 in. (Late piston)

TQ



Can someone email me this file. I'm a new user and I need at least 150 posts before I can download it. I am in need of this manual. Thanks in advance.
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Old Aug 31st, 2009, 02:46 AM     #7
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Re: 74" shovel head piston to wall clearance
Quote: Originally Posted by Cz24 View Post
Can someone email me this file. I'm a new user and I need at least 150 posts before I can download it. I am in need of this manual. Thanks in advance.
The manual is 33.25 meg. My systems will not let me email anything that large. Is there something specific that you are looking for?

TQ
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Old Aug 31st, 2009, 06:31 AM     #8
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Re: 74" shovel head piston to wall clearance
It looks like you have to get the 150 sensible posts like everyone else does as a member of the forum and be a member for 3 months as well.

Your first and only post is asking for a manual?
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Old Sep 1st, 2009, 07:38 AM     #9
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Re: 74" shovel head piston to wall clearance
Go to shovelhead.usa and set yourself up in profile/registration and you will get all the help you could ask for on all pre-evo harleys
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Old Sep 22nd, 2009, 10:06 PM     #10
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Re: 74" shovel head piston to wall clearance
I think .003
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