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| | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Cecil,
Top end oil travels from the rear cam bearing, through a small external copper tube, into the plugged hole you have shown and up to the center oiler (rockers).
Was this line removed for a hot tank cleaning...usually the hole would have been left open. Is there a corresponding plugged hole near the rear lifter hole? It sounds like you bought a naked block and don't know the history of it.
I think '49geezer' has a real good picture of this area properly plumbed. Where that picture is I don't know.
Stuart
Last edited by atomarc; 05/17/2008 4:17 PM.
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Cecil, I hope it's allright to link a picture out of someone else's Photo bucket album. Thanks 49 geezer! http://rides.webshots.com/photo/2374347350010188466DyJOVpStuart
Last edited by atomarc; 05/17/2008 6:58 PM.
| | | | | Joined: Jun 2005 Posts: 388 Shop Shark | | Shop Shark Joined: Jun 2005 Posts: 388 | This question has come up on the Inliners' BB a couple of times. Here is a link to one of the threads: Inliners thread The image seems to be missing now, but I recall that the point "A" referred to is the lower aft fitting and the point "B" is the upper center fitting. Does your engine have mechanical or hydraulic lifters. I have an old 1962 261 in my garage. I'll take the side cover off and see how it is set up for getting oil to the rocker arms. Hoyt | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Actually, there's nothing wrong. '58 saw a slight change in the black that eliminated the external line. There's a drilled passage from the cam galley that feeds the rocker assembly i=on the later engines. They also use different lifters, which have an annulus machined around them to allow for oil flow. http://rides.webshots.com/photo/2860315820092261295ZxnFXq
Bill Burmeister
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Bill,
That was my thought too, but it seemed strange that Detroit would develop a new block, then take the time to machine the hole then plug it.
Stuart | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | There's a slight jog in the passage where it turns forward a bit. That's why there's a plug in it. It shows it in the pic, though it isn't real clear.
Bill Burmeister
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Bill,
It looks like you are right. In the picture Cecil linked, there is no port or plugged hole in the rear of the block.
Stuart | | | | | Joined: Jul 2003 Posts: 586 Shop Shark | | Shop Shark Joined: Jul 2003 Posts: 586 | Sorry it took so long to reply. Had to be at a car show today. I forgot to mention that the block had hydrolic lifter and i'm converting over to solids. There is no plug or opening at the other end of my block. From what i see, the plug stays. My new solid lifters have the bevelled side as shown in the photo and labled "right". Thanks to all of you for your help. Cecil.........
Last edited by 51Jimmy; 05/18/2008 3:25 AM.
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