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YOUR RESEARCHLoctite: Strength for FW bolts?
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Use blue loctite
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Leading evidence: 'Use blue loctite' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace clutch, imsb, etc' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Replace torque factor, since it acts as a lubricant
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Suggestion
The loctite changes the torque factor, since it acts as a lubricant.
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Suggestion
Also, if you don't clean out all the old loctite with a thread chaser or re-use bolts the torque factor changes again.
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Suggestion · Original poster
I was going to mark them simply to know when I was at 90 degrees without using the wrench handle and "remembering", but your right, it'll also be a good indicator so that I know which ones I hit and which ones I didn't.
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Changing the clutch, IMSB, etc. Posting DIY when finished.
Question: What color (strength) loctite should I use on the:
Flywheel bolts
Pressure plate bolts
Axle Flange bolts (should I use it here?)
I ask because the flywheel has VERY fine threads
, I'm worried they might strip out or break on next removal if too-strong a loctite is used. (BTW, will torque to spec of 25Nm, then single 90 degree rotation as per WSM).
Worried about the same on the axle flange bolts, but mostly because I'm not replace them as I am with the flywheel and PP bolts.
I do not know what if any Loctite should be used, but you need to check. One way is to visit your local Porsche dealer parts department to buy new fasteners and at the same time have someone look up what thread treatment is needed for the fasteners and what the part number is.
Sincerely,
Macster.
No,
do not
use loctite on
any
of these fasteners.
Per macsters comments, NONE of these bolts are micro encapsulated, and they come "from the factory ready to install".
Tigten the flywheel and pplate bolts in a crossing pattern, and mark the 90 degree stretched FW bolts when you are done with each one using a sharpie. That way you don't accidentally turn one 180 degrees and another one 0 degrees.
I hope you bought new flywheel bolts, since they are single use.
Thanks folks! Sounds good. I'm buying new bolts with the new flywheel, so I'll leave them as-is. Marking with a sharpy is a good call. I was going to mark them simply to know when I was at 90 degrees without using the wrench handle and "remembering", but your right, it'll also be a good indicator so that I know which ones I hit and which ones I didn't. Good call.
I use blue Loctite on all these bolts. It reduces the chance of one of them backing out on you. In theory if they are torqued properly you don't need it, but I like the safety factor. IMHO
The loctite changes the torque factor, since it acts as a lubricant.
Also, if you don't clean out all the old loctite with a thread chaser or re-use bolts the torque factor changes again.
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