are pressure-plate bolts specific? can i buy new ones from the hardware store?
02-26-2004, 07:54 PM
#1
Three Wheelin'
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are pressure-plate bolts specific? can i buy new ones from the hardware store?
Is there any reason why I can't goto the hardware store and pickup some new bolts to bolt my clutch to my flywheel?
Also, what is the reccomended torque on those bolts? I think i saw in the manual it was around 20 or so... I thought it would be more so i'm just asking for clarification.
Thanks in advance!
Also, what is the reccomended torque on those bolts? I think i saw in the manual it was around 20 or so... I thought it would be more so i'm just asking for clarification.
Thanks in advance!
02-26-2004, 08:09 PM
#3
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There should be a number stamped in the bolt head. At least '8.8' would be a guess for this service - but that's a guess ( will look in the WSM). Anyway, match the bolt head markings re. strength, and all will be fine.
02-26-2004, 09:55 PM
#6
Nordschleife Master
And the PET says...
A regular M8 bolt 40mm long.
No problem finding something like that, but exactly 40mm is another issue. Also, take one bolt along as I've see it where the measurement in the PET doesn't match what's on the hardware store's drawers. (Exhaust studs come to mind. Got a nice collection.)
I've gone searching for bolts that are in odd pitches where I couldn't find a single fastener that would match.
A regular M8 bolt 40mm long.
No problem finding something like that, but exactly 40mm is another issue. Also, take one bolt along as I've see it where the measurement in the PET doesn't match what's on the hardware store's drawers. (Exhaust studs come to mind. Got a nice collection.)
I've gone searching for bolts that are in odd pitches where I couldn't find a single fastener that would match.
02-27-2004, 01:58 PM
#7
Three Wheelin'
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I would not buy bolts at the hardware store in this case, unless they are of known origin.
There is a lot of crap that has the grade marks on it but is not of good metal. I would get a US made or European made graded bolt, not something out of China or the like, regardless of the markings on it. Remember the "inferior" hardware found on some aircraft, this is no different. Spend the money and get a Wurth or high quality fastener.
There is a lot of crap that has the grade marks on it but is not of good metal. I would get a US made or European made graded bolt, not something out of China or the like, regardless of the markings on it. Remember the "inferior" hardware found on some aircraft, this is no different. Spend the money and get a Wurth or high quality fastener.
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02-27-2004, 02:06 PM
#8
Range Master
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For some applications, I would agree with John's advice, not this one though. That 8.8 bolt is designed for 30 ft/lbs of torque. the TQ requirements are 17.25 per Jim's note above. Tim tested one and went all the way to 50 pounds before it failed. If you do get a bad one it is very likely to fail quite early in the application of torque.
On the otherhand if the brands John is recommending are easily available to you the cost difference is nominal. All I am saying is the application is WELL within the bounds of the torque specs for an 8.8
On the otherhand if the brands John is recommending are easily available to you the cost difference is nominal. All I am saying is the application is WELL within the bounds of the torque specs for an 8.8