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  #11  
Old 03-04-2010, 03:47 PM
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Originally Posted by treerootCO View Post
Machine shop found a crack in the exhaust runner of the #2 cylinder. That is good and bad news because I am relieved we found the problem but now we need a new head. I am still digging out the heads in the garage for those that expressed interest. The machine shop has casting numbers to identify the cross over years.
Glad you figured it out Mike. Bummer that you guys just did that head fairly recently though, right?
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  #12  
Old 03-04-2010, 07:40 PM
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was that block sitting for a while ? that line looks like a piston ring line from were the piston would be sitting for a extended perioded of time.. and the rings fused to the wall. just ideas. but it dosent look like anything to be consirned about
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  #13  
Old 03-05-2010, 10:35 AM
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The head was manga fluxed and rebuilt recently. The crack is in a place you can't see according to the machine shop.

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http://forum.ih8mud.com/40-55-series...mber-info.html

The date code is cast in the block on the manifold side, midway between the last two core plugs.

It is a 5 digit number.
First digit is the year.
Next two digits are the month.
Last two digits are the day of the month.

So your block might have a number like 91217
9= 1979
12= December
17= the 17th

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North engine - 441050 = Mar '80

South engine - 334175 = Dec '78
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Last edited by treerootCO; 03-05-2010 at 11:34 AM.
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  #14  
Old 03-05-2010, 10:57 AM
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huh?
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  #15  
Old 03-05-2010, 11:34 AM
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Quote:
Originally Posted by wesintl View Post
huh?
Looking for a new head for my dad in the pile of cr@p in the garage.
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“He who goes unarmed in paradise had better be sure that that is where he is.”—James Thurber
"Its better to be thought a fool rather than to speak up and remove all doubt." - Lincoln
pride is ego, the word I had lost was dignity. The quality or state of being worthy of esteem or respect.
Ptarmigan build thread - 95FZJ80
www.root45.com
www.risingsun4x4club.org

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  #16  
Old 03-10-2010, 12:11 PM
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South = December 4th, 1978

Off to the machine shop.....

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aka Mike D.----->Bio Page KDøGWY
“He who goes unarmed in paradise had better be sure that that is where he is.”—James Thurber
"Its better to be thought a fool rather than to speak up and remove all doubt." - Lincoln
pride is ego, the word I had lost was dignity. The quality or state of being worthy of esteem or respect.
Ptarmigan build thread - 95FZJ80
www.root45.com
www.risingsun4x4club.org

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  #17  
Old 04-05-2010, 04:40 PM
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I wanted to update this thread that we dropped a new head off at the machine shop and had it redone. The engine was reassembled and is back up and running.
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aka Mike D.----->Bio Page KDøGWY
“He who goes unarmed in paradise had better be sure that that is where he is.”—James Thurber
"Its better to be thought a fool rather than to speak up and remove all doubt." - Lincoln
pride is ego, the word I had lost was dignity. The quality or state of being worthy of esteem or respect.
Ptarmigan build thread - 95FZJ80
www.root45.com
www.risingsun4x4club.org

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  #18  
Old 04-06-2010, 06:20 AM
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So when do you get to drop in your new to you tbi 2f ?
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