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993 Dilavar head studs reusable?
I know there have been numerous debates on head studs but can anyone tell me if used 993 Dilavar head studs part #99310117053 ( good condition) couldor should be reused reliably like steel ones?
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03-25-2013, 06:02 PM
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Registered
Join Date: Jul 2006
Location: Charlotte, NC
Posts: 1,964
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Those are the fully threaded ones. Expensive and reusable.
Todd
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03-25-2013, 07:41 PM
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Join Date: Jan 2012
Location: Erehwon
Posts: 3,369
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Yes they are expensive, but in terms of reuse, I presume one should reapply thread locker on the second installation. New they come with a thread locking compound on the engine case side, when you remove them and clean everything up I would reapply the appropriate Loctite product or similar.
Dennis |
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03-26-2013, 05:06 AM
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Straight shooter
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How long have they been in service and on which engine? I personally wouldn't re-use them in any application regardless of costs. If you have an aluminum case then I would recommend the Supertec or other warrantied stud... the cost of which is less than that of going back in with a shattered Dilavar in the future. I would only recommend new Dilavar over other material studs on a magnesium case engine when aluminum cylinders are demanded.
Best of luck,
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“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values |
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03-26-2013, 06:45 AM
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Sorry to hijack a little - what did porsche use as standard on the 993? Mine are threaded at the ends only and have a greenish/tan hue.
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03-26-2013, 02:00 PM
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P911
