F engine oil delivery union removal (1 Viewer)

yamaguchigumi

SILVER Star
Joined
May 16, 2017
Messages
246
Location
Greenville, SC
I am on step 23, trying to remove the oil delivery union from the rocker shafts
so each rocker shaft can be lifted off the head.

the screw at the back is not moving and the screw slot is getting a little opened up from trying

any secrets, tips or ideas?

I am only trying to get all my lifters and push rods out

21E49FF1-7DCE-427B-93E2-63BAB299B970.jpeg
AD1EBDAD-F869-4BC9-B763-8FF981D6898C.jpeg


D23B2499-8F1B-45CB-8C5C-7612B19A25E6.jpeg
 
Joined
Jan 17, 2005
Messages
5,365
Location
Southern Colorado
Does your screwdriver fit tightly and is the tip not worn?

You might seek out a screwdriver bit and custom-fit it to the screw, or use gunsmithing screwdriver bits. You (obviously) don't want to booger up the screw head. Beyond that, I don't have a secret sauce to getting it out.
 

65swb45

Elder Statesman
Supporting Vendor
Joined
Apr 14, 2004
Messages
29,179
Location
818-953-9230
The screw is not meant to be turned; it is a stop which keeps the banjo from sliding too far one way or the other once the orings on the rocker shafts are no longer holding the banjo snugly by themselves.

If you’re ever unfortunate enough to see a banjo ‘dance’, you have TWO problems. One is worn out o rings. The second is that the rocker delivery tube is rubbing on one of the two pushrods it must cross to get from the #2’cam bearing hole to the passage in the cylinder head.

The pushrod can and does wear through the copper tube when this happens. :eek:
 

yamaguchigumi

SILVER Star
Joined
May 16, 2017
Messages
246
Location
Greenville, SC
The screw is not meant to be turned; it is a stop which keeps the banjo from sliding too far one way or the other once the orings on the rocker shafts are no longer holding the banjo snugly by themselves.

If you’re ever unfortunate enough to see a banjo ‘dance’, you have TWO problems. One is worn out o rings. The second is that the rocker delivery tube is rubbing on one of the two pushrods it must cross to get from the #2’cam bearing hole to the passage in the cylinder head.

The pushrod can and does wear through the copper tube when this happens. :eek:
Thanks for the info. I pulled both rocker halves out together, then realized that screw will not turn. I have no inferences between pushrods and the oil delivery tube and will double check that when I reassemble. Someday.
Some diagrams show a spring and a cap internal to the front rocker arm tube at the oil union. Not sure if that is needed. My oil union only has the screw and two o-rings to keep it in place.
 

65swb45

Elder Statesman
Supporting Vendor
Joined
Apr 14, 2004
Messages
29,179
Location
818-953-9230
Thanks for the info. I pulled both rocker halves out together, then realized that screw will not turn. I have no inferences between pushrods and the oil delivery tube and will double check that when I reassemble. Someday.
Some diagrams show a spring and a cap internal to the front rocker arm tube at the oil union. Not sure if that is needed. My oil union only has the screw and two o-rings to keep it in place.

The extra pieces you reference WERE used...on the F135. ;)
 

Users who are viewing this thread

Top Bottom