Intake manifold bolts
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=646
Printed Date: May-28-2024 at 4:18pm
Topic: Intake manifold bolts
Posted By: Guests
Subject: Intake manifold bolts
Date Posted: July-19-2004 at 7:56pm
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How tight should the bolts holding the intake manifold on a 351 W be? I was chasing down a vaccuum leak on a 90 SN by first making sure the manifold was tight and was able to crank each one about a quarter turn more each with medium effort- I didn't want to really crank down on them. Some made a little "creak" noise and some didn't- I'm assuming it is because they weren't turned for a while, or ever. These are the 6 or so 1/2 in bolts on the top of the manifold.
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Replies:
Posted By: Guests
Date Posted: July-19-2004 at 11:36pm
Posted By: Guests
Date Posted: July-20-2004 at 12:52am
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Okay, assuming I don't have a torque wrench, can I over-tighten these or is it real sensitive like a valve cover or pan gasket?
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Posted By: Guests
Date Posted: July-20-2004 at 1:42am
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Actually, I borrowed a torque wrench and got them all to 24 ft lbs. Some of them took another good quarter turn. If this fixes my problem I'll be a happy camper. Thanks!
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Posted By: SS 201
Date Posted: July-21-2004 at 7:40am
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Run a tap thru and clean out the threads, it doesn't hurt to run a die over the bolts either.
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