Notices
6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Socket Size/Method for Engine Rotate By Damper

Thread Tools
 
Search this Thread
 
Old Oct 14, 2015 | 11:57 PM
  #1  
F350Engr's Avatar
F350Engr
Thread Starter
|
New User
Joined: Aug 2015
Posts: 6
Likes: 0
Socket Size/Method for Engine Rotate By Damper

I am in the process of torquing the rocker arm assembly bolts and need to hand rotate the 2008 6.4L. What is the Harmonic Damper socket size? Has anyone been able to hand rotate these without pulling any of the fan shroud stuff off....also, what about releasing compression. Would love to hear what worked for you. I apologize if this information is posted elsewhere, but i haven't been able to locate it.

FYI - pulled the valve cover off and found one rocker completely off it's mount and laying on the head. The cup for the ball pivot had broke off. In removing and inspecting the rockers on both sides, i've found that one other cup was fractured, and most all the rocker end wear components were completely worn down.
 
Reply
Old Oct 15, 2015 | 11:51 AM
  #2  
slowmans's Avatar
slowmans
Cargo Master
20 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2006
Posts: 3,013
Likes: 90
From: SE. MA
How many miles/Hrs on engine? Do you do all your own main.?

What oil are you using?
 
Reply
Old Oct 16, 2015 | 02:52 PM
  #3  
F350Engr's Avatar
F350Engr
Thread Starter
|
New User
Joined: Aug 2015
Posts: 6
Likes: 0
The truck has about 215,000 miles (not sure of hours). I just bought the truck from a fleet dealer (Ford). Within 5k miles the tie-rod went out (Really bad), and the right side ball joints were gone (lower really bad, top bad). I will be doing all my own maintenance, but because I had these problems along with others like radiator failure AC charge loss etc....I negotiated a free oil change from the dealer (best i could get). Shortly after the oil change the valve train went out. I am in the process of replacing the rocker assemblies on both sides (most all were near failure, one assembly had failed). I'm praying that there isn't any damage further down in the engine.
Any advice on hand rotating the engine is greatly appreciated...really hard to even get to the damper bolts. Cant see the timing mark at the current rotation angle either.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
speakerfritz
6.4L Power Stroke Diesel
3
Dec 6, 2016 08:35 PM
tbm3fan
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
7
Oct 28, 2014 08:11 AM
tofargone
6.0L Power Stroke Diesel
10
May 4, 2014 10:35 AM
Will Albers
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
5
Oct 4, 2007 02:55 PM
83f150beast
Ford Inline Six, 200, 250, 4.9L / 300
15
Nov 1, 2006 02:08 PM




All times are GMT -5. The time now is 12:43 AM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE