Test drives and why isn’t the clutch working?

With our mostly sealed transmission and thoughts of getting the car truly road-worthy, we started taking little jaunts around town.  On December 2, 2021, we took Janet’s high school buddy, Gina Ensalaco, on a ride that was revealing of a weakness in the drive-train.

Gina and Craig at Tamarack and Pacific Coast Highway. Note the Carlsbad Encina power plant with no smoke stack thru the windshield.

What became very clear as we got closer to home was that it was becoming more and more difficult to shift the car in ANY gear. I thought we were not going to make it, so I left it in first gear for the last mile or so and rolled a couple of stop signs where there was no traffic. This was a problem I’d experienced earlier.  The hex head bolts I had replaced with socket head bolts & lock washers for the throw out bearing pressure plate were UNSCREWING themselves again – damnit. (See original problem explained at: https://michiganmotorcar.com/so-many-things-to-adjust/ )  So here we go again.

I’ve had the throw-out bearing and front universal joint out so many times that I welded up a jig or cradle to hold the piece in place on my hydraulic floor jack. Let me tell you how unpleasant it is to stand on your head to while trying to get 12 bolts removed or installed while holding 18-20 pounds of universal joint in one hand and a wrench in the other. Try aligning twelve little holes with a greasy floppy U-joint trying to slip out of your grasp. The new tool support changed it from a hateful exercise to a merely tiresome one.

U-joint support tool helps make alignment less onerous.

With the addition of Locktite® red thread locker goop, we will see if the fix is at least MOSTLY permanent.  ( Cue the bright uplifting happy soundtrack – Zippity Do Dah or similar.)

Bless their Haartz – Our beautiful top fabric arrives.

On December 1, 2021, we received a shipment we had long been awaiting. Christmas came early – and from Acton, Massachusetts.

Janet displays the custom top fabric, just arrived from Haartz Corp. It’s pinstriped and a near perfect match with our original fabric.

I had first contacted Eric Haartz in December of 2014.  Eric, grandson of the company’s founder, was intrigued by our Michigan’s family story and our original pinstriped fabric. And, Eric has been a very long time active member of the Horseless Carriage Club, which probably goes a long way towards explaining his interest in our project.

First, a bit about the Haartz Corporation which grew out of a top fabric company started in 1897.  It is now a world wide company with operations in Massachusetts, Michigan, Germany, China, Japan, India, and Mexico. They supply both interior and exterior (convertible tops) fabrics for the most exclusive brands of automobiles as well as other specialized applications.  Eric was both enthusiastic and super detail oriented in all our communications which required sending him swatches of our original (faded and aged) top fabric. As I write this, we are anxiously awaiting our trip to Ernie Romero’s shop to start the transformation of this beautiful fabric into a one of a kind Michigan top.  For the un-initiated. Most tops for cars of the Michigan’s vintage no longer have original tops. One hundred year old fabrics seldom survive. If they do, typically they remain folded up and mostly unseen for fear of shredding into brittle bits if the top is opened up. Additionally, most tops were either BLACK or some flavor of beige. And almost NONE were pinstriped or otherwise decorative.  Eric told me that his recollection was that his grandfather sometimes got inspired by men’s suits and adapted some of these patterns into automobile and other fabrics.  Very few of these patterns for automobiles survive on antique cars. They have typically been replaced with BLACK.  We believe our car’s top will be simply outstanding.

Pinstripping is best seen in the folded section. CLICK TO ENLARGE

 

It goes, but the transmission seals are not sealing.

On November 27, 2021 we started the car up. This has been no real problem so far. It is starting remarkably easily -usually 1/4 turn of the crank, once the engine is primed. And drove to the nearest gas station for a fill up. Reverse gear out of the garage was a bit noisy with a distinct whirring, but there were no horrid crunching munching grinding noises. That’s good. However when stopped to fill up and on looking at the ground wherever the car was briefly stopped. There was a little puddle of oil – specifically – transmission oil.

Look for the line of little shiny drips under the car. That’s our transmission fluid.

So, back to the garage where I would investigate why we were losing so much fluid so quickly. On our way, Janet & I delighted in the smoothness of the gear changes – with or without a transmission full of oil.

Inspection showed that the transmission output seal was not doing its job – at all. There was wear on one of the surfaces that simply didn’t want to seal with a felt washer.

Output shaft seal plate was scoured and rough. The single felt seal was not adequate.

So I made a large brass washer on the lathe and put that in.  It seems to have slowed the drips.

Brass washer installed with thicker felt washer and an O-ring on the U-joint side.

Transmission Out & Let’s make a new gear shaft

On November 5, 2021, I wrestled out the transmission and took it down to my workshop. While it is only held in place with 4 long bolts, the combination shifter and hand brake shaft  requires some finesse to wiggle it free, even after the front and rear universal joints are detached.

Shifter and cross shaft removed.

Transmission ready for transport.

Once I opened up the transmission, I inspected the gears. Although some were rounded on the leading edges of the teeth which meshed, they weren’t badly worn. Nor were any teeth missing. The Hyatt bearings on either end of the drive train were in very nice shape. This was all observed by fellow HCCA member Bill Ottemann who brought by some bushing material and drill rod for building a new shaft and bushing for the Reverse idler gear.  The photos below show why this might be important.

Reverse idler gear & shaft. This is what was jumping up & down.

So – what do you think? Does the shaft look smooth? Is the bushing tight? Is 1/8″ clearance considered a fit?

Ugly – no matter what the angle of the photo.

Good grief!  No wonder reverse gear made a noise. I drove out the bushing and put a new 1″ chunk of drill steel in the lathe to turn to the appropriate diameter for a new bushing for the gear.

Exploded view of the transmission. Reverse idler in lower right. Click to enlarge photo.

On November 13, 2021, we drove up to Fresno to visit family and pick up my Dad for a trip to Carlsbad and work on the Michigan. The shaft was turned, drilled for tapered pins and the new bushing was put in the gear.

Reverse idler gear & shaft — old and new.

Dad & I inspect shafts and fit.

During the process of getting ready to re-install the transmission gears, shafts and bearings, we discovered that 1) the main drive pinion, and 2) the bushing inside it and 3) the front portion of the main drive shaft that the main drive pinion turns on had heavy wear.  This needed to be addressed and ended our hope that we would be able to get the Michigan back on the road while Dad was visiting.  The most straight-forward way was to turn the front 3.5 inches of the main shaft slightly and replace the bushing  with one that was slightly oversized to match the turned shaft.

Annotated exploded transmission, showing main drive shaft & main drive pinion

Turning a few thousandths off the Main Drive Shaft was fairly simple. Getting the bushing turned both inside and outside to the correct size was a bit more effort. But the greatest effort was trying to get the old thrashed bushing out.  I tried heating, a hammer puller and finally resorted to a hack saw and screw drivers to bend and crush the bushing to the center. What a hassle.

After all else fails — hacksaw the bushing

Pry the bushing out in chunks.

New bushing ready to press into Main Drive Pinion.

Pressing the bushing in.

With the main problem components of the transmission refurbished, it was time to re-assemble.  The troublesome reverse idler shaft and gear were taper pinned into the newly painted transmission housing (interior was coated with red insulating varnish).

Reverse idler gear with new shaft installed in lower transmission housing.

And then – I re-assembled the transmission. It will be noted that none of the meshing gears are pristine.  They all have leading (meshing) edges on their teeth that are a bit munched, rounded and tapered. My colleagues in the Horseless Carriage Club that have viewed the gears commented that “they really don’t look too bad”. So back in they go – munched and nibbled teeth notwithstanding. I’ve attached a partially annotated photo of the transmission below.

Annotated Michigan transmission photo. CLICK TO ENLARGE

By November 26, 2021, I had the transmission back in the car. It was time to test my handywork. (Cue the ominous background music.)

New Shoes & A Jumpy Transmission Gear

The La Brea Tar Pits is one of my favorite places, having first visited in a 3rd Grade field trip  before there was a Page Museum on the site. If saber tooth tigers, dire wolves, mastodons and mammoths interest you, then there is no better place in the world than the La Brea Tar Pits. https://tarpits.org And if you are on this site because you like automobiles, the Peterson Museum is across the street and down 2 blocks. https://www.petersen.org

After visiting the tar pits, we got back to Michigan business by putting on a new set of tires and investigating the cause for the terrible noises in reverse.

Four new NON SKID shoes for the Michigan – $2160 and you can install them yourself.

Clarence’s assistance made tire mounting so much easier than trying to do it solo. Thank you, Clarence. To fully understand the way new tires are mounted on our Michigan, you should probably visit my web page that talks about our Detroit Demountable Rims, which although NOT unique to Michigan cars, are fairly unusual. https://michiganmotorcar.com/nuts-bolts-2/shortsville-whee…demountable-rims/

Then we tried to figure out what might be this issue with the REVERSE noise. We jacked up the rear of the car with the REVERSE gear engaged so we could manually turn over the transmission by rotating the rear wheels. During this, we left the observation hatch open – Yes, there is an observation hatch for adding heavy oil and looking at the gears.  (But you better not have it open while operating the car, because you will get drenched.)

Transmission with observation hatch open.

With me peering into the transmission with the shifter in REVERSE and Clarence rotating the rear wheels slowly forward and back, I could just make out a gear jumping up and down. This gear was the reverse idler gear. It is the one at the very bottom of the transmission on a shaft by itself. Of the many things a gear might do (mostly going round and round or sliding along a shaft when the shifter is moved, this particular gear was jumping up and down on the shaft each time the rear wheels changed direction. The jump was not along the axis of the shaft, but up and down ON the horizontal shaft – like it was terribly loose. It wobbled a bit too. Yeeks! That is not a thing a transmission gear should be doing. So…… I was destined to pull the transmission and figure out why this gear was so jumpy.

Before Clarence & Sally left to return to Indiana, we manually backed the car into the driveway for a photo op.

L to R = Tori, Craig, Sally, Janet and Clarence

So Many Things to Adjust

Once I had the Michigan up the hill and on the street, Janet & I took a very short journey down the block.

Janet & Craig’s first & very short ride in the finished Michigan.

It was immediately clear that the clutch was not working well and was rapidly becoming inoperable. We quickly put the car into our regular garage and I sought out the problem.

Our 1914 Model T Ford and the 1912 Michigan in the garage.

Apparently the bolts holding the throw-out bearing pressure plate were unscrewing themselves, thereby lengthening the throw of the throw-out bearing. The clutch pedal went to the floor without anything happening.  So, I screwed the bolts back in and figured, that I simply hadn’t tightened them enough. Then reinstalled the heavy and greasy U joints. That should do it………………… wrong.  (At the time of this posting – Jan. 8, 2022, this problem was to revisit us several more times — until we resolved the problem — maybe? I hope!)

The next issue was one that presented itself when trying to get the car turned around to go up the hill from the workshop. (just prior to the video, above) The car made fine RIGHT turns, but LEFT turns were very restricted. I was really scratching my head trying to figure out what was wrong with the steering gear or front suspension. Had I broken something? No — I hadn’t.  It was just a small installation error. The pitman arm was hitting a nut that fastened the steering gear to the frame. I needed to reverse the ends of the bolts so that the bolt head (narrow) would be adjacent to the pitman arm (allowing it to pass by). The nut side stuck out too far and stopped the arm from swinging the necessary distance to allow a proper left turn.  Problem solved.

On October 10, 2021, we got the car back out started it up and took it down the street.   Same problem – shifting becomes very difficult when the throw-out pressure plate unscrews itself and gets loose. I barely made it back into the garage after a 3/4 mile lap around the neighborhood.  This issue clearly required more thought and a permanent fix.

This time I completely removed the pressure plate/throw-out bearing retainer. It was held on by 4 slotted bolts, that were made to be tightened with a screwdriver (not a whole lot of torque).  I replaced these with 5/16″ x 18 t.p.i. socket cap screw bolts with lock washers.  Close examination of the retaining plate revealed punch indentations adjacent to the four plate holes. Apparently I was not the first person to experience this problem. The original slotted bolts had been “staked” by a previous repair person. STAKING is a method (not a very good one) of stopping a bolt or screw from loosening. A metal punch is used with a hammer to put a dent in a bolt or the adjacent metal to use the burr created by the punch to keep the bolt from unscrewing. It permanently deforms the metal and sometimes works.

Dents adjacent to the 4 central holes in the plate show “staking” of the slotted (right group) bolts. Left group & lock washers for replacement.

The new socket cap bolts were inserted and tightened with an Allen wrench. This should hold a lot better than the slotted bolts.

The leaky rear hubs were the next issue. Gear oil from the differential was finding its way out the axle tubes to the wheel bearings and out onto the wheels and rear brakes. In the two brief rides we took with the Michigan, it was noticeable that the car did not really want to stop. This is a very not good condition. Oil and grease from prior use of the car (probably about 100 years ago) had saturated the brake pads (inside the drums) and the brake bands (outside the drums). New leaks from the axle tubes would not improve our stopping power.

Heavy gear oil from the differential flows down the axle tubes and escapes onto the wheel and brake drum.

The solution to the leaking oil is a set of seals. The inboard side of the hub has a rotting leather seal with what appears to be oakum packing (Nasty fibrous oily tarry burlap) providing packing behind the seal. This seal has failed. So we need to find a solution.

The old leather is tediously riveted in place with copper rivets. Because these seals are notoriously leaky, and replacing it would be a truly awful project requiring the creation of new tools to fit into the very tight dome area, we are going to try a work around. If the work around fails, this will be a future project.  What is also missing is several felt seals that go on both sides of the hub.

Inside of Rear Wheel

The next project was to cut felt seals of the correct dimensions. To do this I needed to create a set of cutting dies to be used in my hydraulic press. The felt is one half inch thick so scissors are not very useful. Dies were made from short pieces of tubing which I sharpened on one side in my lathe.  Then the felt was placed on a flat piece of scrap wood, the die positioned on the felt, and the ram for the press positioned above a chunk of  steel to spread the force over the entire circumference of the tubing section. Then apply pressure from the hydraulic jack.

Dies and cut felt seals

Ready to cut the felt seal.

Several sizes of felt seals were required for the rear axles.

While I was workin on the rear axles, it became obvious that I needed to work on the brakes. They were both (internal hand brake and external foot brake) saturated with old oil.  These original brakes were lined with what is undoubtedly asbestos, and – other than being oil soaked, were in remarkably good shape.

Royal Equipment Co. Duplex brakes with Raybestos brand lining – and a lot of grease & oil.

I cooked the brakes in bath of super degreaser that I have used previously for 36 hours at about 150 degrees (TASC – Total Aqueous Systems Cleaner from Green Power Chemicals). It removed a lot of oil, but unfortunately not all. I will get to revisit the brake linings at some point in the future, because they still are not as grippy as they need to be.

Cooking the brakes.

The week of October 24 – 31, 2021, Janet’s sister Sally and her husband Clarence Davis flew in for a visit…… and as always, Clarence got drafted to work on the Michigan. (He and Sally were custodians for the car from 2011 to 2013 and restoration contributors all along.)  We got busy working on the rear axles to stop the leaking. We installed new felt seals, new oakum packing behind the felts, an O-ring just because and a squirt or two of magic Ultra Black RTV sealant.  We will see how it all works…………………………….. or doesn’t.

Clarence cradles an axle while I prepare to commit modern automotive sacrilege with silicone sealant.

With the rear axles installed with new and non-leaky seals (we hope), the next order of business is to fill the differential with heavy oil. My horseless carriage consultants advised that if the SAE 140 weight stuff was moving out the axle housings and escaping into the brakes, I should GO BIG. Use SAE 1500 weight. This is seriously viscous stuff. Start pouring it in now and by next October, it should be in the differential. But seriously, we did heat it in a water bath before trying to pour it in. And we did get some lunch while the last glops got differentiated.

Clarence bides his time while the goop in the funnel slowly follows gravity.

After lunch, it was time to see if our work paid off. Let’s go for a ride!  BUT WAIT, WAIT, WAIT!

What’s that horrible grinding in REVERSE?

I hadn’t used REVERSE before. And that sounds like marbles in a blender. Oh dear. That is NOT good.  Put the car back in the garage. We have to figure out what that noise is about.  But not today.  If we cannot get a ride in the Michigan we’ll have to go do something else. Since we have been dealing with slow viscous fluids…….. we naturally needed to visit…

The LA BREA TAR PITS! Home of real fossil fuels – Pleistocene pachyderms among others.

And It Goes!

On October 3, 2021, I added some gas, checked and rechecked the magneto, primed the priming cups and cranked it over. It started on the second pull. Our flight plan? Out of the workshop, up the hill out of the backyard, and into the garage.

(Click on the four way enlargement arrows in the photo, above, to fill the screen)

You have no idea how remarkable it is to have experienced this day. It has been a long time coming. But, as I will explain in the next few posts, once the car is assembled and is technically operating, it does NOT mean that it is running correctly.

 

 

IT’S A CAR!

On September 10, 2021, we put the finishing touches on the Michigan. (Well…… except for the top, but that is coming.)  It was a fully assembled vehicle, with more parts attached than when we pulled it out of Steve Dickie’s family barn back in 2011. Unfortunately Dad was feeling poorly and did not make the photo session.

The MICHIGAN is complete. (nearly)

Janet with Steve Dickey, Sept. 17, 2011. Both are great grand children of Michael Fleck – the original owner of the car.

Interior front.

Rear Interior

But can we get it started? And will it run?

 

Assembling the Body Parts

As instructed by our upholsterer, Ernie Romero,  I created a missing rear seat support platform in the style of the original front seat supports.

Rear seat support.

On September 5, 2021, my Dad, Vince, came south from Fresno along with my sister, Susan, and her daughter, Amanda. The plan was to assemble all the fenders, splash guards, dash trim, hood sections, windshield and other bits into a restored automobile. And so we proceeded to do that.

Susan, Pop, Amanda, Me & Janet with the long selfie arm.

Dad unwraps the nickel plated dash trim.

Over the next few days, Dad & I put the fenders, splash guards and other bits & pieces that had been painted, plated, polished, or preserved back on the car.  And my cluttered workshop became somewhat more spacious.  One forgets that the most compact version of an automobile is the fully assembled version. (Oh….. and it suddenly looks like a real car instead of an exploded view of a car – filling the workshop.)

Dad tests the upholstery as I lock down the hood on a mostly assembled automobile.

 

 

Buff out the Orange Peel

Following the return of the newly upholstered body, I commenced polishing out some of the orange peel finish in the green paint. I blame the orange peel (bumpy texture) partly on my inexperience as a painter and partly on the $14 Harbor Freight spray gun that refused to shut off 3/4 of the way through the spray job back on July 27, 2020.  You move fast and carefully when the trigger is stuck ON.

I used several types of buffers and compounds to remove the orange peel.  Chief among the equipment was a 5.5″ denim (yes, just like Levi’s jeans) with Meguiar’s M100 Pro Speed Compound. This was on a Bauer (HF) dual action polisher that operates from 2000 – 6400 rpm. The denim & the M100 really cut the high spots down. The denim loaded up with spent cleaner & paint in about 2 applications of cleaner and needed to be cleaned out frequently. This was done with a soft nylon brush in warm running water.  My main complaint is that the adhesive for the denim to the foam disk was NOT up to repeated washings and soon started to delaminate. Another potential problem was that high areas had to be taped so that I didn’t scrub through the layer of green paint. That worked pretty well by taping the high spots with blue masking tape. I also did some block sanding with 1000 and 1500 grit sand paper that worked pretty well in big flat areas.

Sanded, buffed & polished.

The result looks pretty nice (not perfect) but, hey I’m new at this.