97 f150 techincal service bulletin 9747
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Laughing Gas
Joined: Mar 2002
Posts: 1,060
Likes: 12
From: arizona
97 f150 techincal service bulletin 9747
Does anyone know anything about TSB #9747??????
Something about the frame/structure rivets or bolts should be replaced.
I know my 97 4x4 will "pop" or squeak real bad if I'm driving on uneven roads......like the frame under the transmission is moving or sliding.
(Green chile/Guacamole) blaaaaaaccc.....give me a T-bone, plane
Something about the frame/structure rivets or bolts should be replaced.
I know my 97 4x4 will "pop" or squeak real bad if I'm driving on uneven roads......like the frame under the transmission is moving or sliding.
(Green chile/Guacamole) blaaaaaaccc.....give me a T-bone, plane
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
97 f150 techincal service bulletin 9747
TSB 97-4-7 says basically that if you find a loose rivet on your frame to replace it with a bolt and nut. It gives details on how to drill it out etc.
Have you tried tightening your transmission crossmember? Torsion bar crossmember?
Have you tried tightening your transmission crossmember? Torsion bar crossmember?
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
97 f150 techincal service bulletin 9747
It's not a very exciting TSB......
ISSUE:
Damaged or loose frame rivets should be replaced with approved service bolts. WELDING IS NOT ACCEPTABLE.
ACTION:
If service is required, replace standard rivets with approved service bolts. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
NOTE: THE "HUCK" RIVET BETWEEN THE #1 CROSSMEMBER AND THE LH FRAME RAIL SHOULD BE SERVICED PER TSB 91-25-18. THIS PROCEDURE DOES NOT APPLY.
Inspect for a loose or damaged rivet.
Remove any damaged or loose rivets.
Drill a 3.175mm (1/8") hole through the rivet.
Redrill the same hole through the shank of the rivet.
Use an 8.731mm (11/32") drill for 3/8" and 10mm rivets.
Use a 9.525mm (3/8") drill for 11.113mm (7/16") rivets.
Remove the rivet head with an air chisel.
Drive out the rivet with a punch and hammer.
Line ream the hole to the replacement bolt nominal size with a hole tolerance of ±0.127mm (0.005").
Free hole of burrs after reaming to allow bolt head and nut to seat properly.
Select the bolt length to have a minimum of two (2) threads protruding from outer face of nut. Refer to the following Bolt Selection Chart for correct parts usage.
NOTE: IF A FLANGE HEAD NUT AND BOLT ARE NOT AVAILABLE, GRADE 5 HEX HEADS MAY BE SUBSTITUTED WITH ONE (1) FLATWASHER REQUIRED UNDER THE NUT AND ONE (1) FLATWASHER REQUIRED UNDER THE BOLT HEAD.
Check to be sure there is a 12.7mm (1/2") minimum clearance of bolt to adjacent components, except engine and transmission, which must have at least 19.05mm (3/4") clearance to allow for powertrain roll.
Tighten the bolts to the specifications shown in the Bolt Selection Chart.
NOTE: GRADE 8 BOLTS MAY BE SUBSTITUTED FOR ANY APPLICATION.
BOLT SELECTION CHART
Rivet Diameter Bolt Size Bolt Part Number Washer Part Number Nut Part Number Torque Specifications
3/8" and 10mm 7/16"-14x1.25" 56561-S2 Not Required 382400-S2 45-68 N-m (33-50 lb-ft)
7/16"-14x1.75" 56563-S2 Not Required 382400-S2 45-68 N-m (33-50 lb-ft)
7/16" 1/2"-13x1.5" (Grade 5) 56783-S100 Not Required 33773-S2 72-102 N-m (53-75 lb-ft)
1/2"-13x2.0" (Grade 8) 383896-S2 44879-S2 33773-S2 102-142 N-m (75-105 lb-ft)
ISSUE:
Damaged or loose frame rivets should be replaced with approved service bolts. WELDING IS NOT ACCEPTABLE.
ACTION:
If service is required, replace standard rivets with approved service bolts. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
NOTE: THE "HUCK" RIVET BETWEEN THE #1 CROSSMEMBER AND THE LH FRAME RAIL SHOULD BE SERVICED PER TSB 91-25-18. THIS PROCEDURE DOES NOT APPLY.
Inspect for a loose or damaged rivet.
Remove any damaged or loose rivets.
Drill a 3.175mm (1/8") hole through the rivet.
Redrill the same hole through the shank of the rivet.
Use an 8.731mm (11/32") drill for 3/8" and 10mm rivets.
Use a 9.525mm (3/8") drill for 11.113mm (7/16") rivets.
Remove the rivet head with an air chisel.
Drive out the rivet with a punch and hammer.
Line ream the hole to the replacement bolt nominal size with a hole tolerance of ±0.127mm (0.005").
Free hole of burrs after reaming to allow bolt head and nut to seat properly.
Select the bolt length to have a minimum of two (2) threads protruding from outer face of nut. Refer to the following Bolt Selection Chart for correct parts usage.
NOTE: IF A FLANGE HEAD NUT AND BOLT ARE NOT AVAILABLE, GRADE 5 HEX HEADS MAY BE SUBSTITUTED WITH ONE (1) FLATWASHER REQUIRED UNDER THE NUT AND ONE (1) FLATWASHER REQUIRED UNDER THE BOLT HEAD.
Check to be sure there is a 12.7mm (1/2") minimum clearance of bolt to adjacent components, except engine and transmission, which must have at least 19.05mm (3/4") clearance to allow for powertrain roll.
Tighten the bolts to the specifications shown in the Bolt Selection Chart.
NOTE: GRADE 8 BOLTS MAY BE SUBSTITUTED FOR ANY APPLICATION.
BOLT SELECTION CHART
Rivet Diameter Bolt Size Bolt Part Number Washer Part Number Nut Part Number Torque Specifications
3/8" and 10mm 7/16"-14x1.25" 56561-S2 Not Required 382400-S2 45-68 N-m (33-50 lb-ft)
7/16"-14x1.75" 56563-S2 Not Required 382400-S2 45-68 N-m (33-50 lb-ft)
7/16" 1/2"-13x1.5" (Grade 5) 56783-S100 Not Required 33773-S2 72-102 N-m (53-75 lb-ft)
1/2"-13x2.0" (Grade 8) 383896-S2 44879-S2 33773-S2 102-142 N-m (75-105 lb-ft)
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