Reuse reinforcement plate bolts?

fs34 · 12-25-2020, 02:04 PM

So I think I dropped a oil filter housing bolt down there and have had no luck sweeping with a magnet. Plus I’d like to remove it to clean the oil mess and drain the block.

Can the bolts be reused? I know it was removed for RBs, not sure if they replaced them when they did the job.

Merry Christmas!

Scharbag · 12-25-2020, 10:15 PM

Quote:

Originally Posted by fs34

So I think I dropped a oil filter housing bolt down there and have had no luck sweeping with a magnet. Plus I’d like to remove it to clean the oil mess and drain the block.

Can the bolts be reused? I know it was removed for RBs, not sure if they replaced them when they did the job.

Merry Christmas!

Reuse. Just make sure they are good-n-tight. I have reused mine many times.

Cheers,

amrazM · 12-29-2020, 06:07 AM

safe to be reused as they are steel bolts.

nrubenstein · 12-29-2020, 09:45 AM

Yes, you can reuse them. Note: They are already stretched. Do not follow the factory angle torque sequence!

TX · 12-29-2020, 11:28 PM

so if you're not using the factory re-torquing spec of 56nm + 90*, what target are you torquing to? In the end 56 + 90* doesn't end up being 56Nm if you were to reuse the bolts. According to the data log from when I last did the plate bolts the 56NM + 90* ends up at roughly 89NM applied at the end of torquing.
I used new bolts. I wouldn't feel safe doing that to used bolts. It feels like they are ready to snap.

nrubenstein · 01-04-2021, 09:02 AM

Quote:

Originally Posted by TX

so if you're not using the factory re-torquing spec of 56nm + 90*, what target are you torquing to? In the end 56 + 90* doesn't end up being 56Nm if you were to reuse the bolts. According to the data log from when I last did the plate bolts the 56NM + 90* ends up at roughly 89NM applied at the end of torquing.
I used new bolts. I wouldn't feel safe doing that to used bolts. It feels like they are ready to snap.

To be honest, I just ballpark it on with my little impact gun. These aren't high precision fasteners. If you're going to worry about precision on these, it matters a lot more to do it with the car sitting on the suspension.

That said, I'd probably torque them to about 50ft-lbs reusing.

12-25-2020, 02:04 PM	#1
fs34 Lieutenant 409 Rep 428 Posts Drives: E46 M3 Join Date: May 2019 Location: Huntsville, AL iTrader: (1)	Reuse reinforcement plate bolts? So I think I dropped a oil filter housing bolt down there and have had no luck sweeping with a magnet. Plus I’d like to remove it to clean the oil mess and drain the block. Can the bolts be reused? I know it was removed for RBs, not sure if they replaced them when they did the job. Merry Christmas!
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12-29-2020, 06:07 AM	#3
amrazM mTekMods 2161 Rep 2,912 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	safe to be reused as they are steel bolts. __________________ 2011 Frozen Black/Fox Red E90 M3 650+WHP G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5
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12-29-2020, 09:45 AM	#4
nrubenstein Captain 567 Rep 801 Posts Drives: E30 M3/E36 M3/E46 M3/E90 M3 Join Date: Dec 2016 Location: Washington, DC iTrader: (2)	Yes, you can reuse them. Note: They are already stretched. Do not follow the factory angle torque sequence! __________________ 2011.75 E90 M3 \| 2006 GMC Sierra LBZ \| 2004 X5 3.0i 6MT \| 1995 M3 S50B32 \| 1990 325is \| 1989 M3 S54B32 Hers: 1996 911 Turbo \| 1989 325iX
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12-29-2020, 11:28 PM	#5
TX Captain 366 Rep 860 Posts Drives: 2009 ///M3 E92 APW 6MT Join Date: Dec 2010 Location: South FL iTrader: (0)	so if you're not using the factory re-torquing spec of 56nm + 90, what target are you torquing to? In the end 56 + 90 doesn't end up being 56Nm if you were to reuse the bolts. According to the data log from when I last did the plate bolts the 56NM + 90* ends up at roughly 89NM applied at the end of torquing. I used new bolts. I wouldn't feel safe doing that to used bolts. It feels like they are ready to snap. __________________ Last edited by TX; 12-29-2020 at 11:40 PM..
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