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Posted:  23 Feb 2007 09:00	[?]
Registered User Currently Offline Join Date: Jan 2007	Posts:  19 Reputation: Unranked [?] User Rank: Second Lieutenant
hi guys .wondering if any of you can help me here,out on my bike last weekend and the head gasket blew clean out the side.ive only done 150 miles since that head was rebuilt after it spat the spark plug out,ive been told if you put a head back together you run the engine until hot then let it cool,drop the engine again and re check all head bolts .this wasnt done and ive never heard of this bein done so can anyone confirm,many thanks danny

Posted:  23 Feb 2007 11:09	[?]
Moderator Currently Offline Join Date: Oct 2006	Posts:  1720 Reputation:  26 [?] User Rank: Four-Star General
That is true.  It allows for proper seating of the head gasket and insures proper torque of the headbolts.  I would take it back to place who did it and want a free fix job.

Posted:  23 Feb 2007 15:29	[?]
Registered User Currently Offline Join Date: Oct 2006	Posts:  206 Reputation: Unranked [?] User Rank: Major
x2. It soesn't sound like the guy used a torque wrench. And with aluminum heads and iron jugs, the re-torque is much more necessary.

Posted:  23 Feb 2007 19:23	[?]
Registered User Currently Offline Join Date: Jan 2007	Posts:  19 Reputation: Unranked [?] User Rank: Second Lieutenant
ok guys thanx alot.shall pay the man a visit i think.

Posted:  23 Feb 2007 22:34	[?]
Registered User Currently Offline Join Date: Nov 2006	Posts:  127 Reputation: Unranked [?] User Rank: Captain
Also be aware that there is an updated torque sequence for all evo style motors. My uncle was having the same problem untill I sent him a copy of the service bulletin. After the retorque job, problem free!

Posted:  22 Apr 2007 00:51	[?]
Registered User Currently Offline Join Date: Apr 2007	Posts:  5 Reputation: Unranked [?] User Rank: Second Lieutenant
Guys my '05 xb12r just blew the front pot head gasket, after months of pinging, which even the dealer couldn't fix. Its out of warranty, so guess i'll have to do it. Anyone have the torque specs handy??

Posted:  25 Apr 2007 21:34	[?]
Registered User Currently Offline Join Date: Jan 2007	Posts:  19 Reputation: Unranked [?] User Rank: Second Lieutenant
ok this is gana be a long one as there is a certain sequence to doin these head bolts up.if engine is in front of you with spark plugs on the side thats nearest you,call the bolt on the left nearest you number 1,then to the right nearest you number 2.the bolt on the left furthest away is number 3,then theres number 4 on the right furthest away.start with number 1 increasing in numerical sequence.tighten bolts to 11-14nm.then tighten bolts to 18-20nm,then loosen all bolts,then re tighten bolts in order firstly to 11-14nm then 18-20nm.now you mark the cylinder head and the bolt head with a mark.now tighten all head bolts another 1/4 of a turn.dont know if you need rocker cover torques or not let me no,

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