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Unread 07-29-2012, 07:25 PM   #1
az_zoner
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2004 TJ Wrangler 
 
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Bell-Housing to Block, Bolt Size, (thread size)??

I bought a new/rebuilt engine today for my 91 YJ. 2.5l. I'm trying to get it on my engine stand but I can't find the size of the bolts (thread size) so I can bolt it up. A 1/2-13 doesn't seem to fit. Anyone know? is it 12mm?

thanks for any help.

Craig

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Unread 07-30-2012, 11:19 AM   #2
az_zoner
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To answer my own question I kept looking and found this web site. Very Good info on bolt specs;



http://www.torkspec.com/torkspecmm.aspx?KI=278



cb
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Unread 07-30-2012, 11:48 AM   #3
pete1991YJ
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Mine was 7/16-14
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Unread 08-06-2012, 09:14 PM   #4
az_zoner
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Ok, For you that are using 7/16-14, I'd be carfull. the thread is actually 12X1.75 metric. I finally got a thread gage from work and the 12mm fit correctly. Or that is what my 94 yj 2.5 engine has.

Craig
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