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Flywheel Bolts

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Old 06-27-2004, 06:16 PM
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Yeah that's crazy scary about the 20b. I'll call RB during my lunch break tomorrow and see what they say!
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Old 06-29-2004, 07:35 PM
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So I emailed RB because I didn't have time to call them.



No store in Georgia carries the bolts I need. I've checked RB and MazdaTrix but have come up short.



Can anyone tell me where I can get these little bastards?
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Old 06-30-2004, 05:47 PM
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Straight from the horse's mouth:



Much depends on the bolt you select. If you use a "6Kg/Cm2" (stamped "6" on the head) bolt, 28 ft lb is plenty. If you use an "8", 32 ft lb is OK. Any higher and the cast iron counterweight might start to strip.



As for turbo manifold design, I do not recommend our mild steel flanges for turbo use. They will warp too easily. Use stainless steel (have it plasma or laser cut from 1/2" plate). Keep the runners as short as possible.



Jim Mederer
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Old 06-30-2004, 08:13 PM
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I like 35ft/tq for the pressure plate bolts. It works super good.
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Old 06-30-2004, 08:15 PM
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Originally Posted by Judge Ito' date='Jun 30 2004, 09:13 PM
I like 35ft/tq for the pressure plate bolts. It works super good.
Nice..



I won't get so wrench-happy next time I bolt one up..
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Old 06-30-2004, 10:02 PM
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Thanks for the advice...as soon as I HAVE the PP bolts, I will torque them down accordingly.
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Old 07-01-2004, 03:31 AM
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I have some flywheel bolts with a 7 on the head.
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Old 07-01-2004, 02:14 PM
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Flywheel Nut is torqued to 280-300 ft/lb

If you don't have a 300 ft/lb torque wrench then torque to 150 lb.ft and then rotate the nut through another 60 degrees. (that info is from Bruce Turentine's video).
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Old 07-01-2004, 03:24 PM
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It that like turning it through one set of facets? Heh, does that question even make any sense?
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Old 07-01-2004, 03:29 PM
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Turn it over to the next shank?



I have access to a 600 ft/lb wrench, so I'm not to worried about it.



If you guys happen to know anybody who works at a truck shop, truck wheels are torqued up to generally 400-450 ft/lbs torque, so you may want to ask to "borrow" their wrench..
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