head bolt removal - line sequence?

fuzzydog · Feb 27, 2011

God help me I searched high and low and been reading all morning. We finally have some decent temps here (should hit about -3C today) and I'd like to get these heads off (91 7.3 IDI). I know that the headbolts need to be undone in increments in the reverse of the tightening sequence.

I haven't been able to find anywhere that states FOR SURE whether that is the reverse of the steps 1/2 sequence (expanding circle starting in the middle of the head) or reverse of the steps 3/4 sequence (in a line)??

Anyone?

icanfixall · Feb 27, 2011

The line sequence is a modified Z pattern.... With the valve cover off the head look at the head.... Se the line of bolts at the exhaust exit to the heads. There are four bolts in that lowest line of bolts. Then the next row of bolts just outside of the valve cover... That line has five bolts in it... Then finally in the valve cover area you will see the last row of eight bolts.... Just look at them and try to see the "Z" pattern... Start at the lower row at the exhaust exit of the heads and loosen each bolt about 1/4 turn till all the bolts are finger tight....

fuzzydog · Feb 27, 2011

Thanks, from what you describe I take it the loosening sequence is the reverse of the step 3/4 tightening sequence. I see what you mean about the Z pattern

Big day today - I will finally see inside my engine. ;Sweet

icanfixall · Feb 27, 2011

Yes... You got it.... I wish I could have scanned a pic from my shop manual but that another issue... :dunno

turbodiesel94 · Feb 27, 2011

http://www.thedieselstop.com/forums/attachments/f30/8908d1289311407-88-f350-head-gasket-idihead.gif

flareside_thun · Feb 27, 2011

turbodiesel94 said:
http://www.thedieselstop.com/forums/attachments/f30/8908d1289311407-88-f350-head-gasket-idihead.gif

You have to be a member to view that apparently.....

I didn't realize that you had to loosen the head bolts in a particular sequence....

turbodiesel94 · Feb 27, 2011

There that should work now.

head bolt removal - line sequence?

fuzzydog

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icanfixall

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flareside_thun

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