Head Gasket replace what does rotate crankshaft until damper loacting notch for? - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-25-2010, 09:02 AM
Member
 

Join Date: Dec 2010
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Head Gasket replace what does rotate crankshaft until damper loacting notch for?

I replaced my head gaskets torqued the heads and noticed I missed the steps that says " Rotate crankshaft until damper locating notch is in six o clock position"

I never moved the engine at all what is this for?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 12-25-2010, 09:12 AM
shhhhh, can you hear it?

 

Join Date: Feb 2010
Location: wichita,ks
Posts: 2,236
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
proper timing with the cam would be my guess
Reply With Quote Quick reply to this message
  #3  
Old 12-25-2010, 09:33 AM
Compression Ignition Addict
 

Join Date: Jul 2010
Location: Mechanicsburg, PA
Posts: 160
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
the hydrolic lifters can spring a little when they are not under pressure from the push rods. the tollerance is very close and it could bend a push rod depending on the location of the pistons.
Reply With Quote Quick reply to this message
  #4  
Old 12-25-2010, 07:38 PM
Premium Member
 

Join Date: Apr 2008
Location: Moyock, NC
Posts: 1,263
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
I ran into the same situation when I did my head gaskets. I scoured everywhere and finally found the answer...

If you look at the face of the dampener, you will see a line-up or locating dowel. Put it at the 6 o'clock position... That is what it means... If it is not at the 6 o'clock, you run the risk of bending some rods.

When you look at the front of the dampener, you will know what I mean. I don't have a pic of it, but just picture the dampener removed, there will be a dowel sticking out that you have to line up the hole in the dampener to get it to fit right. Now, that doesn't mean go remove it to see... You will see the head of the dowel pin with the dampener on...
I hope this makes sense...
Reply With Quote Quick reply to this message
  #5  
Old 12-30-2010, 11:00 PM
Member
 

Join Date: Dec 2010
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So I did not rotate the crank to where it should be and I have everything torqued including the rockers. Should i just loosen the rockers and rotate the engine? How does roatating the engine prevent the valve from going down to far because the hydraulic lifters will not be pumped up immdiatly anways?
Reply With Quote Quick reply to this message
  #6  
Old 12-31-2010, 03:35 PM
Member
 

Join Date: Dec 2010
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Any suggestions to what I should do since I tigtened everything down without rotate to the proper position?
Reply With Quote Quick reply to this message
  #7  
Old 12-31-2010, 04:35 PM
Premium Member
 

Join Date: Apr 2008
Location: Moyock, NC
Posts: 1,263
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
I have no clue if you should loosen them up, get the crank into position then re-torque. i remember reading on here that some did the same thing you did and bent some pushrods... If it were me, I would re-do it just for piece of mind.
Reply With Quote Quick reply to this message
  #8  
Old 12-31-2010, 06:46 PM
Compression Ignition Addict
 

Join Date: Feb 2010
Location: Cresson, Texas
Posts: 222
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Bull****!!! You don't have to rotate crankshaft... Logic FOLKS! If you rotate the crankshaft to the 6 O'clock position what did you gain? Unless you removed the timing belt, NOTHING! All pistons are sequenced to the crank and all lifters are sequenced to the cam. The only item that ties them together is an item called a timing belt or chain. The 6.0L is predicated on a ZERO lash for Rocker Arm to Valve Spring tension or torque. It doesn't matter where the crankshaft is as long as you did not touch the timing belt.

1. After head and rocker box is located and studs (hopefully) are inserted but not torqued, Install pushrods and rocker arms, but do not torque these bolts. Only thread the rocker arm bolts in, to properly hold the pushrods under rockerarms.
2. Torque your head studs sequential, (follow the torque pattern). Complete the sequence of torquing up to 210 Ft. lbs. if using Ultra lube ARP.
3. Verify rockerarms and pushrods are still aligned (Lifter, pushrod, rockerarm). Then torque rockerarms.

End of lecture... I'll challenge anyone on this issue.

Last edited by deucer; 12-31-2010 at 06:49 PM.
Reply With Quote Quick reply to this message
  #9  
Old 12-31-2010, 07:18 PM
Premium Member
 

Join Date: Apr 2008
Location: Moyock, NC
Posts: 1,263
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by deucer View Post
Bull****!!! You don't have to rotate crankshaft... Logic FOLKS! If you rotate the crankshaft to the 6 O'clock position what did you gain? Unless you removed the timing belt, NOTHING! All pistons are sequenced to the crank and all lifters are sequenced to the cam. The only item that ties them together is an item called a timing belt or chain. The 6.0L is predicated on a ZERO lash for Rocker Arm to Valve Spring tension or torque. It doesn't matter where the crankshaft is as long as you did not touch the timing belt.

1. After head and rocker box is located and studs (hopefully) are inserted but not torqued, Install pushrods and rocker arms, but do not torque these bolts. Only thread the rocker arm bolts in, to properly hold the pushrods under rockerarms.
2. Torque your head studs sequential, (follow the torque pattern). Complete the sequence of torquing up to 210 Ft. lbs. if using Ultra lube ARP.
3. Verify rockerarms and pushrods are still aligned (Lifter, pushrod, rockerarm). Then torque rockerarms.

End of lecture... I'll challenge anyone on this issue.
Wow....

Why are you being so bold on this. It is an extra step. Takes a few seconds to do.... In AllData step 7 of the cylinder head installation it specifically says:

Caution: Rotate the crankshaft until the damper locating dowel notch is in the 6 o'clock position or engine damage can occur.

Maybe that is not the only safe position. Maybe if it is at 9 o'clock is where you will get the damage. maybe 4 or whatever. It just gives you a reference where there will be no damage.
Challenge all you want.. Most people on here are diesel enthusiasts and not Master Diesel Technicians.. We follow directions and err on the side of caution.
Every one I do, I will make sure it is in the 6 o'clock position.

Happy New Year!!!!!
Reply With Quote Quick reply to this message
  #10  
Old 12-31-2010, 07:33 PM
Premium Member
 

Join Date: Apr 2008
Location: Moyock, NC
Posts: 1,263
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Oh and by the way.... Our engines don't have a timing belt or chain. It is gear driven...
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 12:18 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors