390 clutch
Thread Starter
|
Senior User
Joined: Oct 2012
Posts: 186
Likes: 1
390 clutch
I'm learning by doing...
1970 f250 4x4 390 (soon)
Can anyone tell me:
which direction the pilot bearing goes
are the pressure plate bolts supposed to be threaded all the way
(PO used grade 5 bolts that were threaded all the way and I had one snap before 35lbs torque)
thanks
1970 f250 4x4 390 (soon)
Can anyone tell me:
which direction the pilot bearing goes
are the pressure plate bolts supposed to be threaded all the way
(PO used grade 5 bolts that were threaded all the way and I had one snap before 35lbs torque)
thanks
Logistics Pro
Joined: Aug 2015
Posts: 4,093
Likes: 14
From: Lind, WA- Eastern WA
The last time I messed with pressure plate bolts, I'm fairly certain they were grade 8 and were not threaded all the way up. That grade 5 bolt should not have broke at 35 lbs. Use new nuts and bolts whenever possible. Apply locktite (it will secure the bolt and keep it from rusting), except when using steel bots into alum.-then use anti-seize.
Cargo Master
Joined: Oct 2011
Posts: 2,241
Likes: 299
From: Kenner,La.
clutch bolts
Just like Gary said those were the wrong bolts. Just replace the bolts 1 at a time with grade 8 bolts and grade 8 lock washers. Finding the original style bolts will not be too easy.
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Pressure plate to flywheel bolts are 5/16" X 18 X 13/16". Ford part number 350329-S2.
Morlan-Shell Ford
417-256-3193
xGreen Sales
(800) 543-4959
AND
<table class="static info_table"><tbody><tr><td class="label">Part Number:</td><td>350329S2</td><td>
</td><td class="label">Seller:</td><td>NOS Parts Ltd. - View Profile</td></tr><tr class="even"><td class="label">Description:</td><td>NUT-BOLT-CLIP-PIN WASHER-SCREW-BUMPER-GROMMET-ETC</td><td>
</td><td class="label">Phone:</td><td id="phone_primary666801">Show Phone Number</td></tr><tr><td class="label">Price:</td><td>Request Pricing</td><td>
</td><td class="label">Email:</td><td>Send Seller Email Inquiry</td></tr><tr class="even"><td class="label">Quantity:</td><td>36</td><td>
</td><td class="label">Location:</td><td>Waxahachie, Texas Map & Directions</td></tr></tbody></table>
Morlan-Shell Ford
417-256-3193
xGreen Sales
(800) 543-4959
AND
<table class="static info_table"><tbody><tr><td class="label">Part Number:</td><td>350329S2</td><td>
</td><td class="label">Seller:</td><td>NOS Parts Ltd. - View Profile</td></tr><tr class="even"><td class="label">Description:</td><td>NUT-BOLT-CLIP-PIN WASHER-SCREW-BUMPER-GROMMET-ETC</td><td>
</td><td class="label">Phone:</td><td id="phone_primary666801">Show Phone Number</td></tr><tr><td class="label">Price:</td><td>Request Pricing</td><td>
</td><td class="label">Email:</td><td>Send Seller Email Inquiry</td></tr><tr class="even"><td class="label">Quantity:</td><td>36</td><td>
</td><td class="label">Location:</td><td>Waxahachie, Texas Map & Directions</td></tr></tbody></table>
Logistics Pro
Joined: Aug 2015
Posts: 4,093
Likes: 14
From: Lind, WA- Eastern WA
Sorry, I was looking at a chart for 3/8 grade 8 bolts. AS Orich said the limit for 5/16 grade 5 bolts is about 15 - 19lbs.
Trending Topics
Logistics Pro
Joined: Aug 2015
Posts: 4,093
Likes: 14
From: Lind, WA- Eastern WA
NS70250, I just looked in the Chiltons manual and it says to torque the pressure plate bolts to 15 - 20 lbs. So those bolts must be a grade 8. The bellhousing to engine bolts are torqued to 40-50lbs. I don't know where you got 35lbs.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
For those who don't understand why these two limits that are printed in Manuals.
Why theirs Two torque limits this means the 1st. Tq # 15lbs is with oiled threads.
The 2nd#reading limit is for dry threads.
Orich
Why theirs Two torque limits this means the 1st. Tq # 15lbs is with oiled threads.
The 2nd#reading limit is for dry threads.
Orich
Thread
Thread Starter
Forum
Replies
Last Post
Restoman2
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
3
Mar 18, 2011 12:40 PM
66beater
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
1
Mar 8, 2006 02:21 PM