Tag Archives: shaping a stem

Replacing a screw mount stem

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I have always wondered how to replace screw mount tenons without drilling out the mortise. I have done that before and it works well but I wanted to try to create a new screw mount stem using the existing tenon. I have learned from repairing overturned stems that you can heat the tenon and adjust its fit so I figured heating it and removing it would work much the same. So for the subject of the experiment I decided to tackle refurbishing an old Whitehall pipe I had here.

The Whitehall had a screw mount stem with a stinger attachment. The stinger was removable leaving about a half inch of tenon that I could work with. The stem had a huge hole on the underside of the stem near the button and was not a candidate for a stem patch. It would work perfect for the plan.

I heated the metal tenon with my heat gun until I could loosen it from the stem. I used a pair of needle nose pliers after wrapping the tenon with a cotton cloth to protect the threads. With a minimal effort of wiggling the tenon it came out very easily. Once it was removed I cleaned it thoroughly with pipe cleaners, alcohol and steel wool.

I then matched the length of the existing tenonless stem with my stem blanks until I had one that was roughly the same length and thickness. I used my Dremel to cut off the precast tenon until it was close to the flat surface of the stem. I then used the flat board with sandpaper attached (like I do when topping a bowl) to sand the surface flush. Care must be exercised to keep the stem vertical or the surface will quickly get an angle. I smooth that surface with wet dry sandpaper 40 and 600 grit and finished it with the micromesh pads.

Once completed smoothing the end of the stem I used a series of drill bits to work my way up to 1/4 inch diameter hole that the tenon insert required. I have learned the hard way that to start with the size I want can often cause the stem to break in my hands. So because of that I progress through the series of bits until it is the correct size. Before gluing the insert in place I screwed it into the shank and put the stem on so that it was correctly aligned. I did not want to have an overturned or under-turned stem when I was finished. I marked the insert with a black marker so that I would know which side was the top and then unscrewed it from the shank. I coated the insert end with some epoxy (like I do when inserting Delrin tenons in to the stem) and pressure fit it into the stem with the mark on the top side of the fitting. It was a perfect fit. The superglue dries quickly so I checked the fit on the stem again to make sure it still aligned. It did!!

I used my Dremel to shape the diameter of the stem until it was a close fit and then finished the fit with sand papers and micromesh. When I had it smooth and shiny I buffed it with Tripoli, White Diamond and finally several coats of carnauba wax. I then used my heat gun to bend the stem to the right angle for this bent pipe. I cooled it under cold water and then polished and buffed it again.

The bowl had been cleaned and scrubbed to remove the grime and build-up of the years with Murphy’s Oil Soap and a soft bristle tooth brush. Once it was clean I gave a light coat of medium brown stain and then waxed it with Halcyon II wax.

Here is the finished pipe:

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Old Croydon-Reborn

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I have spent a bit of time on this old Croydon Bent (Peterson Line of seconds I believe). In fact I probably spent more time than I should have done, judging by other refurbishers throw away buckets. Sometimes I just have to see what I can make of an old tired ugly looking pipe. It is a challenge more than it is a labour of restoration. In fact it could probably be argued that when I am done with this one it really no longer should be considered a Croydon at all. I suppose it is a matter of how far one goes in the process of restoration before it becomes a totally new work of briar. In my mind this one would probably qualify for the removal of the name – or at least a hyphenated name CROYDON-REBORN.

When I received this one it was in pretty rough shape. In the pictures below you can see the state of the finish on the bowl. There were places where pieces of the lacquer finish were peeling away and falling off. The stain on the bowl was spotted and variegated. Even the many fills all over the bowl had shrunken significantly and what remained were dips and divots in the surface. The rim was one part of the pipe that was in pretty good shape. It had some tar build up and a bit of blackening but no nicks and dents. That is actually remarkable given the condition of the rest of the pipe. The silver shank cap was split in half and torn from the stem being jammed in and out of the bowl. The P-lip stem was also marked with tooth chatter, was oxidized and dented.

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I did not have any end caps in my collection of pipe odds and ends so I decided to put a regular nickel band on the shank as it was thin and weakened from the broken shank cap. I cleaned the shank end with alcohol and dried it out. I heated a band and pressure fit it on the shank. There was a small gap at the edge that I filled with wood glue to give stability to the shank. I probably should have waited to apply the band but the shank seemed fragile and I wanted to stabilize it before further work on the bowl.

I have never liked the thin Peterson type stems so I decided to restem it with a saddle fish tail stem. I used my PIMO tenon turner and turned the tenon close and sanded it to a good tight fit. I used my Dremel to take down the excess diameter of the stem and worked on the ridges and seams with the Dremel. I sanded the roughness of the new stem until it was smooth with 240 grit sandpaper followed by 400 and 600 grit wet dry sandpaper and a bit of water. It was finished with the regular regimen of micromesh pads – 1500, 1800, 2400, 3200, 4000 and 6000 grit. The final polish was done on the buffer with White Diamond and carnauba wax.

The bowl was a major problem. I tried to strip the bowl using acetone and 99% Isopropyl alcohol and could not break through the finish – don’t what they coated it with but it would not let go. I resorted to sanding the bowl to try and remove the finish and sanded, sanded and re-treated it with acetone and alcohol. The finish was finally gone and I had a raw briar bowl with so many fills in it that it looked like it had freckles. I decided to try staining it with a dark brown stain to hide the fills and give it a good deep colour that was a bit opaque. Once it was dry I buffed it and polished it with wax. It looked really awful and I hated it!!! Soooo… I decided to rusticate it. I used my fist full of nails (pipe with nails inserted in it) to do the rustication that appears in the photos below. The previous coat of stain that I had applied helped with the process of rustication and I could clearly see where I needed to do a bit more work. This is when I wished that the band was not present as it would have been a bit easier to avoid contact with the band and the rusticator.

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Once the rustication was acceptable to me, and the pipe felt good in the hand I prepared it for staining. On this one that involved using the floral frog to knock off any loose chips of briar and to smooth out the surface before I wiped it down with a damp alcohol cloth. I also sanded the rim smooth and used the micromesh to get rid of any scratches. A smooth rim and a smooth spot around the Croydon stamping would look good on the finished pipe. I decided to go for an aged leather like finish on this pipe as it seemed to fit the shape and the look. I gave the pipe a coat of black stain as an undercoat and then buffed it off the high spots. I gave the entirety a coating of Fiebing’s Medium Brown for the top coat. I flamed it and after drying took it to the buffer for a light buff. I waxed it with Halcyon II and buffed it with a soft cloth to give it the final look. Below are pictures of the finished pipe. In my book it is a significant improvement over the original!

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The 1912 BBB Poker

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Blog by Steve Laug

I picked up this old 1912 BBB Poker on EBay not long ago. It is stamped BBB in a diamond on the shank and on the underside England. The silver is hallmarked Birmingham 1912. It is a smaller group 1 or 2 sized pipe. In the pictures the military stick bit looked like it belonged. It looked like it was shipped that way from the factory. The grime on the silver and on the shank as well as the oxidation on the stem made it appear to be that style of pipe. When it arrived with the other 5 pipes that I bought with it I examined it a bit more closely. In the picture below you can see the roughness of the stem. It is definitely poorly cut. The closer I looked the more I realized that it was a poor replication of an older stem. A BBB pipe of this age came with a different style of military stem and it had an orifice button rather than a slot like this one. The stick bit was not original as it was a slotted bit and was not finished smoothly. There were lots of file marks on both sides of the stem. When I removed the stem I was even more certain that it was a poor copy. The one thing I was still thinking was that it was definitely spigot or military bit pipe.

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Then I began to work on the shank and the band. Someone had darkened the end of the shank to make it look almost black like the tarnished silver band. Once I cleaned the silver and cleaned the shank I could see that it was not a silver end cap at all but a very typical BBB silver band. In the picture below you can clearly see the end of the shank showing as it sits inside the silver band. I used a 1500 micromesh pad to clean off the end of the shank and return it to wood. When I re-stained the pipe I would also re-stain the shank end to match. It was clear that I would need to do a bit of research on what kind of stem was originally on this poker style pipe if I was to restore it to its original glory.

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I have a copy of the BBB Catalogue reprint from Gary Shrier so I got it out and went to work researching the look of the missing original stem. It became clear rather quickly that the pipe shape I had originally came with a taper stem with an orific button. In the catalogue is the exact shape in the exact size. I could not believe it. I laid the bowl on the page and then traced out the shape and size of the stem. A part of my hobby refurbishing is collecting old stems. I buy them wherever and whenever I find them and stockpile them in an old coffee can in my office. I went and got the can and emptied it on my desk to sort through what I had. I have yet to organize them by size so it is a matter of dumping the can out and digging through them. Well, I found one in my can of stems that had the right orifice button and the correct taper so I turned the tenon and fit the stem to the pipe. I used my Dremel to remove excess diameter from the stem so that it was the same diameter as the shank and band.

I also had to clean up the bowl of the pipe as the top was pretty beat up and the inside rim had been chipped and cut as if it had been carelessly reamed with a knife. I steamed the dents from the rim and carefully did a minor topping on the bowl to bring the top back to smooth and the inner and outer rim to smooth. I also chamfered or beveled the inner rim to bring it back into round. There were also dents on both sides of the bowl so I steamed those out as well. I use a wet cloth and a hot butter knife (heated over a flame) to raise the dents. I finished the work on the pipe by re-staining the top to match the bowl then buffed it and gave it a final polishing with White Diamond and then several coats of carnauba wax.

Here are pictures of the finished pipe. Other than being in colour it is a perfect match to the one in the catalogue.

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Edit – 24 Feb. 2013 – I just came across an old BBB poker on eBay that is similar to the one above. I did some research on the stem on the one above and restemmed it. The one in the eBay photos is a newer version of the same pipe number. I have attached two photos below for sake of comparison.

BBB Poker BBB Poker 2

Fitting a pipe with a new stem – photo essay

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Blog by Steve Laug

I picked up this pipe bowl – a Pete 207 – an early Peterson from the late 40s. It was in need of a stem. I have a couple of cans of stems that are precast blanks. They need to have the tenons turned to make them fit correctly.

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I have a PIMO tenon turning tool like the one pictured in the diagram below. I have to drill the stems to fit the guide pin as they are generally very small. Once that is done with a bit on my cordless drill I then put it on the tenon tool and adjust the carbide cutter to the diameter tenon I want to cut. I always start large and work my way down. I have found that trying to cut too much off at once causes the tenon to chip or break. So I start large and work my way down until it fits the mortise. I found this YouTube link that gives a video presentation of the process so I have included that as well for your information http://www.youtube.com/watch?v=drKxzteEEPk A quick look at the video will show you the process I use in turning the tenons. I generally turn the tenon until it is close to fitting and then finish the fit by hand. I have found it is better to proceed by hand from that point so as I don’t take off too much of the vulcanite and have a loose fit on the tenon. I will show that process from the point the tenon has been fit in this pictorial essay.

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Below is a stem blank that I picked up online from Pipe Makers Emporium. I have several coffee cans full of different sizes of blanks. I sort through them to find one that is close to the outside diameter of the shank. I find that it is not too difficult to get the two to match with a lot of sanding and fine work.

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Below is a picture of the bowl prepped and ready for the new stem. I cleaned the top and polished the silver band as I want nothing in the way of a tight fit for the stem. You will also notice in the photo that the tenon is partially turned for a fit. I stopped at this point to show the process. The large portion still remaining on the tenon shows the first turn of the tool to take off the first portion of vulcanite. I keep the tool turning so that the carbide blade removes the face of the stem as well so that the seat will be straight and flush at the union of stem and shank. I find that when I do this at the beginning of the turn it give a good clean finish. The step down in the tenon shows the next portion removed. I have adjusted the tool to take off that portion. After this photo I finished turning the tenon.

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The PIMO tenon tool took a bit of work for me to figure out the adjustments as I purchased the tool second hand without the instructions. The fellow I bought it from gave me some quick lessons on how to adjust it. He even threw in the hex keys!! So needless to say, I learned by trial and error how to adjust the cutting head and keep it straight for a straight cylinder cut on the tenon. Since then I have it has been pointed out to me that Kurt Huhn of Pipe Makers Forums has noted the tricks I learned the hard way.

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I will try to capture the trick in my own words, combining what I have learned the hard way with Kurt’s recommendations. The first step in the process is to adjust the cutting head. Start by removing small portions at a time. To deep a cut makes the cutter wobble and give an uneven tenon. To adjust the cutting head insert the adjustment hex key (larger hex screw on the tool) and the lock key (smaller hex screw) into their set screws. Do not turn them, just insert them. Push in lightly on the adjusting key and pull up slightly. Loosen the lock key a quarter or half turn. While maintaining the up and in pressure on the adjusting key turn it in increments of a half turn (think half hour on a clock). With steady pressure on it by pulling it up, the arm with the carbide cutting head is not loose and wiggling as it is adjusted. If it is loose while adjusting it, you will get non-cylindrical tenons regardless of the number of turns from zero. Do not let go of the adjusting key, tighten the lock key while the pressure remains on the adjusting key. Pull the adjusting key straight out, being careful not to turn or press down on it. Trim the stem and repeat as you need to get a good tight fit on the tenon.

The next sequence of photos shows the tenon finished and the fit clean and tight. I hold it up to the light to make sure that there is no light showing between the stem and shank. Also note the Dremel with the sanding drum in the photo. I use that to bring the outside diameter of the stem to a close match to the shank. I run the Dremel at the middle speed to allow me more control of the tip as I take off material. If I run it too fast I find that it takes off too much. Too slow and it leaves a chunky beat up finish that takes a lot of sanding to smooth out. As can be seen from the photos there is not much material that needs to be removed for a smooth fit.

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In the photos above I have used the Dremel and removed material to the point that the stem and the shank are almost level. I did it in stages with the stem on the shank and rotating the pipe to keep the perspective round and even. Once I got it to the stage above I move to my table and continue the rest of the work by hand. Sand paper in a variety of grades starting with 180 allows me to work the remainder of the material off and to get the scratches and grooves from the Dremel worked out of the stem.

Each of the next seven photos shows the progress of the stem toward the finished product with the different sand papers. Once I have removed the majority of scratches and grooves left by the Dremel with the 180 grit (pictures 1 &2) I move on to using 220 grit and 240 grit to take down more material. Care must be exercised to not scratch the band or the shank. The idea is to leave the shank exactly like it was without scratches or marks (pictures 3,4,5).
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Pictures 6, 7 & 8 show the stem after using 1600 grit wet dry sandpaper. Each sanding step removes more material and evens the flow of the stem to shank. It also removes scratches and prepares the stem for the finish sanding.

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The last four pictures show the pipe after sanding with micromesh pads – 1800, 2400 and 4000 grit. Generally each of the pads progressively polishes the stem. Any places that still show scratches send the stem back to the 600 wet dry sanding or even further depending on the depth of the scratches. When the polish is clean and smooth I take the stems to my buffer and buff with white diamond that raises a deep reflective finish on the stems.

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