Need Criterion DBL-203 Boring Head Lubrication Recommendations

Purchased a little used but likely old Criterion DBL-203 Boring Head. Disassembly for cleaning found that the body was full of grease which had hardened to the point that I had to press the tool holder portion from the body. Now all cleaned up prior to reassembly. I've contacted Allied/Criterion for instructions/lubrication recommendations but haven't heard back.

Anybody have instructions and or lubrication recommendations? I was leaning towards way oil for slip-stick protection. Using on a Bridgeport so oil slinging is already taking place!

I rebuilt three of the DBL-203 heads about five years ago. I assembled them using Lubriplate 101 engine assembly grease. It's a very light lithium based waterproof grease. So far the one I have left is storing just fine. No rust or corrosion. Ken

On my unmentionable cheapy boring heads I use run of the mill auto parts store black CV joint grese (Moly Di something??) and find it works a treat, no corrsion in storage and minimal stick slide when in use.

Just my 2 cents YMMV

Good Day, Ken --

One of the packages Fiske Brothers Refining uses for their Lubriplate 105 grease is labelled Engine Assembly Lube, and it (the grease, not the package) is both of very soft consistency and water resistant. Fiske Brothers also bills Lubriplate 100 as an engine assembly lube, but I've not seen it packaged as such.

The ENTIRE 100-series of Lubriplate greases have been on the market for close to a century, and are very highly regarded, but none of them use a lithium-based thickener; instead, they use a calcium-based thickener. https://www.lubriplate.com/Lubripla...s/PDS/Lubriplate/3_13_100_Series.pdf?ext=.pdf

With that out of the way, Lubriplate 105 has been my go-to grease for general-purpose uses, including corrosion protection, for decades. I whole-heartedly second your endorsement of it.

John

I also used Lubriplate on mine but forget which version...........

John, you're correct, it is 105. Getting absent minded in my older age. Thanks, Ken

Use anything that will keep the adjustment thread from stripping or rusting. Mine came with a light grease. The color was white.