Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Sat, 12 Feb 2005 09:44:55 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m21.mx.aol.com ([64.12.137.2] verified) by logan.com (CommuniGate Pro SMTP 4.3c1) with ESMTP id 726133 for lml@lancaironline.net; Sat, 12 Feb 2005 09:39:06 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.2; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m21.mx.aol.com (mail_out_v37_r3.8.) id q.128.5655fee2 (3850) for ; Sat, 12 Feb 2005 09:38:17 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <128.5655fee2.2f3f6ed9@aol.com> X-Original-Date: Sat, 12 Feb 2005 09:38:17 EST Subject: Re: [LML] Re: engine mount bolt torque X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1108219097" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1108219097 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit CAUTION THE FOLLOWING TORQUE VALUES ARE DERIVED FROM OIL FREE CADMIUM PLATED THREADS. TORQUE LIMITS RECOMMENDED FOR INSTALLATION (BOLTS LOADED PRIMARILY IN SHEAR) MAXIMUM ALLOWABLE TIGHTENING TORQUE LIMITS Thread Size Tension type nuts MS20365 and AN310 (40,000 psi in bolts) Shear type nuts MS20364 and AN320 (24,000 psi in bolts) Nuts MS20365 and AN310 (90,000 psi in bolts) Nuts MS20364 and AN320 (54,000 psi in bolts) FINE THREAD SERIES 8-36 10-32 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-14 1-1/8-12 1-1/4-12 12-15 20-25 50-70 100-140 160-190 450-500 480-690 800-1000 1100-1300 2300-2500 2500-3000 3700-5500 5000-7000 9000-11,000 7-9 12-15 30-40 60-85 95-110 270-300 290-410 480-600 600-780 1300-1500 1500-1800 2200-3300* 3000-4200* 5400-6600* 20 40 100 225 390 840 1100 1600 2400 5000 7000 10,000 15,000 25,000 12 25 60 140 240 500 660 960 1400 3000 4200 6000 9000 15,000 COARSE THREAD SERIES 8-32 10-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 12-15 20-25 40-50 80-90 160-185 235-255 400-480 500-700 700-900 1150-1600 2200-3000 7-9 12-15 25-30 48-55 95-100 140-155 240-290 300-420 420-540 700-950 1300-1800 20 35 75 160 275 475 880 1100 1500 2500 4600 12 21 45 100 170 280 520 650 900 1500 2700 The above torque values may be used for all cadmium-plated steel nuts of the fine or coarse thread series which have approximately equal number of threads and equal face bearing areas. * Estimated corresponding values. My engine mount to firewall bolts are 7/16 - 20. I use 40 foot pounds (480 inch pounds). Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Fair and Balanced Opinions at No Charge! There is an oxymoron in that, somewhere... -------------------------------1108219097 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

CAUTION

THE FOLLOWING TORQUE VALUES AR= E=20 DERIVED FROM OIL FREE CADMIUM PLATED THREADS.

<= /TD>

TORQUE LIMITS=20 RECOMMENDED FOR INSTALLATION (BOLTS LOADED PRIMARILY IN=20 SHEAR)

MAXIMUM ALLOWABLE TIGHT= ENING TORQUE=20 LIMITS

Thread Size

<= /TD>

Tension type nuts MS203= 65 and=20 AN310 (40,000 psi in bolts)

Shear type nuts MS20364= and AN320=20 (24,000 psi in bolts)

Nuts MS20365 and AN310=20= (90,000=20 psi in bolts)

Nuts MS20364 and AN320=20= (54,000=20 psi in bolts)

FINE THREAD=20 SERIES

8-36

10-32

1/4-28

5/16-24

3/8-24

7/16-20

1/2-20

9/16-18

5/8-18

3/4-16

7/8-14

1-14

1-1/8-12

1-1/4-12

12-15

20-25

50-70

100-140

160-190

450-500

480-690

800-1000

1100-1300

2300-2500

2500-3000

3700-5500

5000-7000

9000-11,000

7-9

12-15

30-40

60-85

95-110

270-300

290-410

480-600

600-780

1300-1500

1500-1800

2200-3300*

3000-4200*

5400-6600*

20

40

100

225

390

840

1100

1600

2400

5000

7000

10,000

15,000

25,000

12

25

60

140

240

500

660

960

1400

3000

4200

6000

9000

15,000

COARSE THREAD=20 SERIES

8-32

10-24

1/4-20

5/16-18

3/8-16

7/16-14

1/2-13

9/16-12

5/8-11

3/4-10

7/8-9

12-15

20-25

40-50

80-90

160-185

235-255

400-480

500-700

700-900

1150-1600

2200-3000

7-9

12-15

25-30

48-55

95-100

140-155

240-290

300-420

420-540

700-950

1300-1800

20

35

75

160

275

475

880

1100

1500

2500

4600

12

21

45

100

170

280

520

650

900

1500

2700

&n= bsp; The above torque value= s may=20 be used for all cadmium-plated steel nuts of the fine or coarse th= read=20 series which have approximately equal number of threads and equal=20= face=20 bearing areas.

&n= bsp; * Estimated corresponding values.

My engine mount to firewall bolt= s are=20 7/16 - 20. I use 40 foot pounds (480 inch pounds).

Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Fai= r=20 and Balanced Opinions at No Charge!
There is an oxymoron in that,=20 somewhere...

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