Question about a TSB?? - Kia Forum
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#1 (permalink) Old 07-20-2010, 02:19 PM
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Doing some online research, I came across a few posts stating that anytime a crankshaft bolt is removed it is to be replaced. This is referenced to the following: Pitstop KT2006042501 published 4/25/06 2003~2006 Sorento Crankshaft Bolt (3.5L) Torque Guideline. I could not find this specific guideline anywhere, but I did find this one by looking on kiatechinfo.com for the 2005 kia sorento:
Number 050 date August 2009 Torque specifications on "torque to yield: engine component bolts. The bulletin starts out reading as follows: This bulletin provides information on torque specifications for cylinder head, crankshaft, main & rod bearing cap bolts by means of torque-angle method, using a torque wrench and torque angle gauge. Information is provided for the following models. It then goes on to list the tightening torque (as tables) for cylinder head bolts, main bearing cap bolts, and connecting rod cap bolts. There is no table listed for crankshaft bolts. Am I missing something?
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#2 (permalink) Old 07-20-2010, 05:15 PM
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Here's what I have. I hope it helps. I realise it does not say it covers 06.
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File Type: pdf Crankbolt replacement.pdf (590.5 KB, 592 views)
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#3 (permalink) Old 07-21-2010, 06:24 PM
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Anyone else have any idea as to why crankshaft bolt is mentioned in the header for this TSB:Number 050 date August 2009 Torque specifications on "torque to yield: engine component bolts, but there is no table for the crankshaft bolt. Every other bolt in the header is listed in a table, specifically stating not to reuse the bolt, along with torque specs.
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#4 (permalink) Old 07-21-2010, 07:04 PM
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What is your real question? Is it the fact the crankshaft bolt is mentioned and then no info is listed or are you looking for the torque specs for the crankshaft bolt? 130 FT/LB to 138 FT/LB
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#5 (permalink) Old 07-22-2010, 06:43 AM
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The real question is why is it mentioned and then no info listed. Every other bolt mentioned has a table with torque specs and and remark not to reuse the bolts. Was it accidentally put in the header? or was the table accidentally left out? Being that it is widely known that the crankshaft bolt should be used once, a simple table (or even one sentence) added to this TSB would remove all reasonable doubt. The more I read about the bolts in these Kia's the angrier that I am getting towards them that there is not TSB out specifically for the crankshaft bolt, especially since there was already a recall on them. I was told that the difference between the recall bolt and the 'new' bolt is simply the coating put on them.
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#6 (permalink) Old 07-22-2010, 01:10 PM
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Quote:
Originally Posted by markleyfunk View Post
Doing some online research, I came across a few posts stating that anytime a crankshaft bolt is removed it is to be replaced. This is referenced to the following: Pitstop KT2006042501 published 4/25/06 2003~2006 Sorento Crankshaft Bolt (3.5L) Torque Guideline. I could not find this specific guideline anywhere, but I did find this one by looking on kiatechinfo.com for the 2005 Kia Sorento:
Number 050 date August 2009 Torque specifications on "torque to yield: engine component bolts. The bulletin starts out reading as follows: This bulletin provides information on torque specifications for cylinder head, crankshaft, main & rod bearing cap bolts by means of torque-angle method, using a torque wrench and torque angle gauge. Information is provided for the following models. It then goes on to list the tightening torque (as tables) for cylinder head bolts, main bearing cap bolts, and connecting rod cap bolts. There is no table listed for crankshaft bolts. Am I missing something?
You might be.
I believe Number 050 date August 2009 is referring to the crankshaft main bearings torque setting. The crankshaft bolt problem I believe is inherent to the Sigma 3.5. The 3.5 are not listed in any of the tables in this notice. I would go so far as to accept the possibility that an extra comma was inserted between the words crankshaft and main bearing bolt. If this is not an exceptable explanation then I don't have an answer for you.

Side note: If replacing the crank bolt is recommended on the 3.5 I would replace it on all year models whether it is listed or not. $10 is cheap insurance.
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#7 (permalink) Old 07-22-2010, 01:50 PM
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Thanks nstoolman1! Yeah I guess I am trying to see if there is any reason to fault the mechanic...and based on everything that i can find, I can't blame him for not replacing the bolt. If he replaced it correctly in January (as he stated) and the fact that it is now July, it doesn't seem that I can hold him liable.
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#8 (permalink) Old 12-14-2010, 11:20 PM
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Quote:
Originally Posted by markleyfunk View Post
Anyone else have any idea as to why crankshaft bolt is mentioned in the header for this TSB:Number 050 date August 2009 Torque specifications on "torque to yield: engine component bolts, but there is no table for the crankshaft bolt. Every other bolt in the header is listed in a table, specifically stating not to reuse the bolt, along with torque specs.
Charles here, just joined this club today...got here to ask some questions...i owned a spectra5 2007..my problem was that, my cylinder head has been damaged..i need to replace it but the car TSB is missing. could anyone here have the idea where to get one..my dealer says there's no TSB at all. to be honest, this car is a second hand. I'm not fond of buying brandnews...if someone here has the knowledge,feel free to share it here...


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