The Stovebolt Site Forums The Shop Area Engine Shop Oil Jumper tube for 216

Hi All,

I'm working on a 1951 216 (to put into a 1947 3100). There is a "jumper tube" near the oil distributor. Does anyone know where a new/replacement can be found, or the best way to fabricate one?

Many thanks,

Bill

IIRC, it's an oddball diameter, maybe a 7/16" OD? I believe you can change the compression fittings in the oil pump and the block to 1/2" OD, and use either copper or steel tubing and a tube bender to fabricate one. Be careful to allow for clearance for the crankshaft.
Jerry

Edit: If you're talking about the small-diameter tube that goes through the water jacket to the lifter galley, several of the online antique parts vendors sell a kit with new tubing and all the necessary fittings to replace it.

This may be what your looking for.
Good luck
Dave

I'd bet that 3/16" line is what Bill is looking for Jerry, the
same one Dave has link him to at Jim Carters.
First time most people run into that they think there is a
separate short line at the oil distributor or a separate line
in the lifter galley. They feel the urge to take them off and
clean them and soon discover that it was one continuous line
that starts at the oil distributor-makes a 100° bend-goes
straight thru the water jacket-bends up 90° in the lifter
galley-goes thru the head and terminates at the rocker arm
shaft connector.
Once again, when all else fails....read the instructions.
Denny G

Bill,

You might want to post a link to photo of the line you are referring to (and, where it attaches to the block/etc).

This will allow you and others to be more certain that you are discussing the same things.

Thanks guys, I'll try to post pictures tomorrow.

Here are two pictures that show the old tube (sorry pic loaded sideways) and the ports on the "new" engine.

Any help identifying where to get one of these is appreciated.

Thanks,

Bill

That appears to be the tube that goes through the water jacket to supply oil to the rocker arms. The kit shown above will have all the bits and pieces necessary to replace it, and it's a one time use item that cannot be removed and reinstalled without damaging it.
Jerry

Thanks Jerry, and all.

I've never gotten deeper into a 216 than adjusting the valve lash and bearing clearances. This is "major surgery" from my perspective, but it should be entertaining.

Best regards,

Bill

The trick is to tighten the compression fittings onto the tube just enough to prevent coolant leakage, not cinch down on them as tight as they'll go. Once they're crimped onto the tube, there's no way to undo the process, so wait until you're sure everything is fitted properly before you final-tighten those little compression sleeves. Particularly, watch the clearance of the tube near the pushrod cover- - - -no touching!
Jerry