Head Bolts Keep it All Together ! - Saab 900 Bulletin Board - Saabnet.com
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Head Bolts Keep it All Together !
Posted by K W [Email] (more from K W) on Thu, 2 Jan 2014 19:32:40
In Reply to: Re: Head gasket, RadioFlyer, Thu, 2 Jan 2014 14:52:33
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I've done dozens of Head Gaskets and everyone's advice is great ! The Head Bolts are an area of particular concern whenever doing a gasket replacement .Always remove the headbolts slowly and in a reverse pattern of installation and torque sequence . Keep them in order and check their length with a caliper ..look for any deviations in stretch . Also pay attention to the condition of the thread and hole , sometimes they need cleaning / tapping to clean . Use surgical cleanliness !
Some folks reuse the Head Bolts , others spec new .Whatever you do , be sure to measure the bolts and remember the washers if they have them . If the machine shop shaves off some aluminum , make sure the bolts don't bottom out ,which will cause all sorts of coolant leaks ,etc .
Retorqueing the bolts is another important step that many people skip . Big hassle , but I do it . Sometimes I wait a few run cycles , then have to go through the work of resealing the valve cover .Now I don't use any sealant on the valve cover gasket until after the re torque .
I use a combination of studs and allen hex screws on the exhaust ,and really like copper exhaust stud nuts ,alot !
After the whole job , carefully look for leaks ,they happen !
posted by 204.14.97...
Posts in this Thread:
- Head gasket, WaSaabi , Wed, 1 Jan 2014 20:59:21
- Re: Head gasket, RadioFlyer, Thu, 2 Jan 2014 06:26:46
- Re: Head gasket, WaSaabi , Thu, 2 Jan 2014 07:04:53
- Re: Head gasket, JonInAtl, Thu, 2 Jan 2014 08:10:37
- Re: Head gasket, Roger D , Thu, 2 Jan 2014 08:56:16
- Re: Head gasket, Justin VanAbrahams , Thu, 2 Jan 2014 11:53:16
- Re: Head gasket, turbocon86, Fri, 3 Jan 2014 06:31:37
- Re: Head gasket, WaSaabi , Thu, 2 Jan 2014 14:44:43
- Great write-up Justin!, Name Left Blank, Thu, 2 Jan 2014 12:38:01
- Re: Head gasket, RadioFlyer, Thu, 2 Jan 2014 12:31:35
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