Tension bolts
11-02-2002, 04:29 PM
#1
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I'm replacing some of the tension bolts in my rebuild, I mistakenly ordered ribbed bolts for the replacements and noticed how different they are from the 'smooth' bolts my S4 had... It appears these ribs have been added to help tolerate vibrations, after doing some research I found this web page:
tension bolt info
Do any of you coat your tension bolts with RTV when installing as racing beat recommends? What about using thread-lock on the threads to help prevent them from walking out from vibrations?
Any reasons to chose the S4 bolts over S5? It looks like the ribs could weaken the bolts.
tension bolt info
Do any of you coat your tension bolts with RTV when installing as racing beat recommends? What about using thread-lock on the threads to help prevent them from walking out from vibrations?
Any reasons to chose the S4 bolts over S5? It looks like the ribs could weaken the bolts.
11-03-2002, 12:10 PM
#2
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My 13BT has the ribbed bolts, and I've never had any problems with them. You'll need to be making SERIOUS power before you ever have to worry about tension bolts. I've never used silicone on the bolts, but I know people who use ATF.
11-03-2002, 04:18 PM
#3
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Originally Posted by 13BAce' date='Nov 3 2002, 06:10 PM
My 13BT has the ribbed bolts, and I've never had any problems with them. You'll need to be making SERIOUS power before you ever have to worry about tension bolts. I've never used silicone on the bolts, but I know people who use ATF.
11-03-2002, 04:21 PM
#4
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Originally Posted by pengaru' date='Nov 3 2002, 02:18 PM
Do you use the engine oil on the sealing washer and threads like the shop manual says?
11-04-2002, 05:18 PM
#7
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Originally Posted by pengaru' date='Nov 4 2002, 01:04 AM
How is your engine running btw? Are you done with the break-in period yet?
11-04-2002, 05:35 PM
#8
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Originally Posted by 13BAce' date='Nov 3 2002, 10:10 AM
My 13BT has the ribbed bolts, and I've never had any problems with them. You'll need to be making SERIOUS power before you ever have to worry about tension bolts. I've never used silicone on the bolts, but I know people who use ATF.
mike
11-04-2002, 09:03 PM
#9
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I just heard back from my crack dealer (henry over at mazdatrix), here is what he had to say regarding the tension bolts:
The reason for the ribbed center part is that at high RPM's 8+ the tension bolts can get harmonics which would sometimes snap the tension bolt and then it would fly out towards the flywheel and cause big problems. It is a safety precaution. For your application I would use all ribbed bolts.
So, I'm being a good addict and ordering 16 more ribbed S5 tension bolts.
The reason for the ribbed center part is that at high RPM's 8+ the tension bolts can get harmonics which would sometimes snap the tension bolt and then it would fly out towards the flywheel and cause big problems. It is a safety precaution. For your application I would use all ribbed bolts.
So, I'm being a good addict and ordering 16 more ribbed S5 tension bolts.
