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You are watching: Gm 3.4 intake manifold torque specs


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Hey guys,I was looking at the gasket sets for the 3.4 v6 engine because that my 2004 Impala and also noticed for the input manifold it mentioned replacing the bolts recommended.Has anyone heard that this? has actually anyone excellent this? Is it really necessary?I"ve heard of replacing the head bolts yet the entry bolts?I desire to do sure before I carry out replace them. If it"s not really needed I won"t carry out it however if that is climate I"ll do it. No trying to it is in cheap, just not spend any much more money than necessary, and also if input manifold bolt replacement yes, really isn"t essential then i won"t carry out it.Thanks in advance!
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Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) to the threads and Tighten the top intake manifold bolts and also studs come 25 N·m (18 lb ft).No cite of replacement.
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Reactions:Robby D.
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What around the reduced intake? Those are the ones it looks choose replacement is recommended based on what was showing on autozone. Sent from mine iPhone making use of Tapatalk
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Here what the says--Caution!
Maximum gasket power is achieved when using brand-new fasteners, i m sorry contain a thread-locking patch. If the fasteners space not replaced, a object locking chemical have to be used to the fastener threads. Failure to change the fasteners or use a thread-locking chemical may reduce gasket sealing capability.Caution!Use the exactly fastener in the exactly location. Replacement fasteners should be the correct component number for the application. Fasteners requiring instead of or fasteners requiring the use of thread locking compound or sealant are determined in the business procedure. Carry out not usage paints, lubricants, or corrosion inhibitors top top fasteners or fastener share surfaces uneven specified. This coatings influence fastener torque and joint clamping force and also may damages the fastener. Use the exactly tightening sequence and also specifications once installing fasteners in order come avoid damages to parts and systems.

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ImportantAll lower intake manifold bolts have to be cleaned, totally free of any type of foreign material, and reused only if brand-new bolts space unavailable. Use GM P/N 12345382 (Canadian P/N 10953489) or equivalent and apply to the old entry manifold bolt threads. ImportantManufacturer recommends the facility bolts be completely torqued prior to the diagonal bolts to assure proper seal ability. ImportantLower input manifold bolts in ar 6 and 7 need to be torqued to specification using a crows foot form tool. Install the lower intake manifold bolts.Tighten Tighten the vertical lower intake manifold bolts (1, 2, 3, 4) in sequence to 7 N·m (62 lb in) ~ above the very first pass.Tighten the diagonal reduced intake manifold bolts (5, 6, 7, 8) in succession to 7 N·m (62 lb in) ~ above the very first pass.Tighten the vertical lower intake manifold bolts (1, 2, 3, 4) in succession to 13 N·m (115 lb in) ~ above the final pass.Tighten the diagonal reduced intake manifold bolts (5, 6, 7, 8) in sequence to 25 N·m (18 lb ft) on the final pass.