Thread: Flywheel bolts
04-28-2009, 08:19 AM #1
can anyone give me the thread dia, pitch, and length on the flywheel bolts... and possibly any markings on the heads?
04-28-2009, 09:29 AM #2
I don't have your answers, but if you are upgrading the original 04/05 bolts I would buy them from the online store here as those are stretch bolts, and I would'nt take a chance on something else.
04-28-2009, 09:42 AM #3
I work for a fastener distributor. Have been in the nut, bolt, and washer business for years now... I have a wealth of fastener knowledge.
I can tell what it is if I get a nice picture of one and the head markings.
So what I am trying to say is.... Don't worry, I know what I am doing when it comes to bolts.... No risks will be taken.
But thanks for the heads up OBJ.
04-28-2009, 09:50 AM #4
- Join Date
- Dec 2006
- Crest Hill, IL
I can look at the pictures I took when I swapped last year, but by the time I get home tonight to check you will have your answer from someone else...
When I did my swap I did one bolt at a time, with red locktite...
Meanwhile, not to hijack your thread, but any news on the shimmy's...and the trailer stuff?
04-28-2009, 10:56 AM #5
04-28-2009, 06:22 PM #6
they are 20mm in length M8
The 04 bolts have
FS and A2-70 on top of them
04-29-2009, 07:59 AM #7
Dude... that's odd.... I can tell my looking at the pics on the online store that they are not stainless and if yours says A2-70 on top they are stainless.
The ones in the store are marked 10.9 which is closer to a Grade 8 inch standard bolt. A2-70 is common grade 18-8 stainless which, in strength, comes in between Grade 2 and 5.
A2-70 Tensile = approx 101,500 PSI
Grade 10.9 Tensile = approx 155,100 PSI.
Just an FYI
04-29-2009, 08:12 AM #8
The '04s were especially likely to fail. They were changed in '05 and later... Ron
04-29-2009, 08:14 AM #9
04-29-2009, 08:28 AM #10
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