| [ Total Views: 633 | Total Replies: 4 | Thread Id: 102001 ] |
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 gotthebug65
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| posted on May 12th, 2013 at 04:34 PM |
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Torquing the Cylinder Heads on flat four
Im just wondering how strickt must you be when putting the heads back on. i just fitted new push rod tubes and nipped the heads up in a even sequence
in stages.... to approx 23-25 foot pounds
just read up a bit on it now ha ha
i kicked it over it fired then stopped. checked the left head and it was slightly leaking i think i missed the bottom four nuts on the final
tighten up.
so i nipped them up and seems ok still not starting as battery a bit flat , charging now
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gotthebug65
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| posted on May 12th, 2013 at 07:53 PM |
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car is running who hoo.....
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bajachris88
A.k.a.: Chris Leete
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| posted on May 12th, 2013 at 08:16 PM |
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There is a torque sequence. You don't want it too tight either! Its imperative for longevity you should follow such, as tension in the head studs
will grow as components expand with heat, and its only soft aluminium on the heads being sandwiched into the iron barrels.
Heres a website that directs you the procedure:
http://www.vw-resource.com/heads.html
(ô_!_/ô) (ô_!_/ô)
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New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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gotthebug65
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| posted on May 13th, 2013 at 06:58 PM |
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| Quote: | Originally
posted by bajachris88
There is a torque sequence. You don't want it too tight either! Its imperative for longevity you should follow such, as tension in the head studs
will grow as components expand with heat, and its only soft aluminium on the heads being sandwiched into the iron barrels.
Heres a website that directs you the procedure:
http://www.vw-resource.com/heads.html
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cheers
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shaihulud
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| posted on May 16th, 2013 at 04:02 PM |
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The sequence for tightening the nuts changes as you do it.
There is one sequence for the first tightening and then it changes for the final tightening.
Get a manual and do it right,
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