Mike Macartney

REPORTS ON A 1914 HUMBERETTE RESTORATION

Recommended Posts

I think it is going to be more the chuck spinning or the lack of beer! Since packing up the smoking I have avoided the pub and not had a beer at home, just in case it leads me astray and I am tempted to roll myself a ciggy!

 

I am jumping forward a bit here with the photos. On Tuesday this week, Jane and I collected the Humberette body from Paul Moore the coach trimmer, with the hood up it just fitted in the back of our Ford Transit van.

 

2344.thumb.jpg.cb65c7ea285033d9f75946974fabae8e.jpg

 

It is heavier to lift now with the windshield etc., attached.

 

2345.thumb.jpg.b74b15d2b19ae23685c064faa1c95343.jpg

 

It looks rather 'sweet' sitting in the van!

 

On Wednesday night I did join the rest of the 'Old Boys' (Saga Louts) at the pub for a drink and asked if they could help me take the body out of the van. They came round on Friday morning and we relocated the body to the workshop. I was under strict instructions not to attempt the lifting. I just watched while four people did the job. I was out of 'puff' just watching them!

 

2364.thumb.jpg.d43c480f17dfb7f83ea8e6da9cdf4f9a.jpg

  • Like 7

Share this post


Link to post
Share on other sites

Hello Mike,

You sure know how to put the heat on the rest of us!  Nice progress you are making.  With your ventilating doing much better, your engine better look out as you will be all over that shortly and have a runner!

Al

  • Like 2

Share this post


Link to post
Share on other sites

Hey Mike, try doing like Rodney Dangerfield did to stop smoking. He said he agreed with his wife to only smoke one cigarette after sex. He then said he had pretty much quit but his wife was up to two packs a day!

  • Like 1
  • Haha 2

Share this post


Link to post
Share on other sites
On ‎10‎/‎26‎/‎2019 at 5:22 PM, chistech said:

Hey Mike, try doing like Rodney Dangerfield did to stop smoking

 

Ted, I have tried to think of something amusing to write as a reply, but you have stumped me. Jane has never smoked, although, she does burst in to flames very occasionally!

 

I have kept putting off recording the lathe work I have been doing. Mainly as it has become a bit repetitive. Suffice to say the drawbar is now finished and works with the 5C collets.

 

Below is a precis of the work.

 

2325.thumb.jpg.3dba22977cb2ad71fb345d94e72fe4e1.jpg

 

Decided to make a hollow nut for the end of the drawbar.

 

2328.thumb.jpg.ab3b818555981dd7d08cb786ab71b7e2.jpg

 

Brazed the threaded end into the tube and machined it. 

 

2329.thumb.jpg.c4f2610eef865e5b77c0730febdf0ffa.jpg

 

Fitted the hollow nut into the end of the drawbar.

 

2330.thumb.jpg.fd3e43ea816a7b592d8375d11e233225.jpg

 

Fitted a collet into the adapter and screwed in the drawbar.

 

2331.thumb.jpg.5cee55031fe9ae31cf6290073f47281c.jpg

 

Tightened up the large threaded nut that pushes the clutch release bearing onto the end of the lathe spindle shaft an pulls the collet into the spindle adapter.

 

2362.thumb.jpg.fd49fd76f48ef0f9dfe0bfe42bf11c3d.jpg

 

Checked out the run out. It was less than 0.001.

 

2363.thumb.jpg.9f69f297b7664b488f5ca6d763e60cf1.jpg

 

Solved the problem of the threaded chuck locking ring rattling about by cutting a ring of foam to push in when a chuck was not fitted.

 

From the above photos it does look as everything went 'swimmingly' - it didn't! There were problems along the way.2340.thumb.jpg.319fac6662506f6d7f2be3bbb48c7cd3.jpg

 

I used this measuring device first of all, to check the runout, it appeared to show that I had nearly 8 thou runout. I then devised a method of trying to make the closing taper for 5C collet at an accurate 9-3/4 degrees. (9.75 degrees) as recommended for the 10 degrees of the collets. I will show my method next time.

  • Like 3

Share this post


Link to post
Share on other sites

Ted, I have tried to think of something amusing to write as a reply, but you have stumped me. Jane has never smoked, although, she does burst in to flames very occasionally!

 

 

i don’t think Rodney’s wife did either Mike but he had some of the best one or two line jokes. 

 

Here’s another: The other day my wife met me at the door in a sexy negligee.............Problem was, she was coming home!

  • Haha 1

Share this post


Link to post
Share on other sites

"Oh yeah?," quotes Rodney, "My wife's cooking is so bad I bought her an oven that flushes."

  • Like 2
  • Haha 1

Share this post


Link to post
Share on other sites

Mike, I am genuinely impressed with your new collet and draw-bar addition for your lathe!  I can see building a similar item in the future especially if you are able to hold to .001 runout for your repeatability! How is your aspiration lately...still hanging in good!  Are you able to stay away from the firesticks?  Is your good wife helping your with that change of doing?

Al

  • Like 2

Share this post


Link to post
Share on other sites

Al, thanks for the comments on the drawbar. The no smoking is going well. It is now 30 days 21 hours since I last had a cigarette - not that I'm counting! I am still getting my 'nicotine hit' from the nicotine chewing gum, I started that when I packed up smoking once before, just after I retired. I started smoking again a couple of years later when my breathing started getting bad. It seemed to help at the time with the breathing, but I soon got 'hooked' on both the chewing gum and the roll ups! Jane, and everybody else around me is very pleased that my mood has remained reasonably cheerful and that I have not become a 'miserable git'. I still miss it, especially first thing in the mornings, when I sit at the kitchen table drinking the first cup of tea of the day and reading the emails on my laptop computer. Being hooked on nicotine back in the 1960's, at least stopped me from ever trying non prescribed drugs!

  • Like 3

Share this post


Link to post
Share on other sites

That is good news Mike, hang in there with the fire sticks going cold!

Al

  • Like 1

Share this post


Link to post
Share on other sites

I'm curious as to how you corrected the taper on the collet adapter. That is a really good piece of work, probably a lot more precise than any car work is.

Share this post


Link to post
Share on other sites
12 hours ago, JV Puleo said:

I'm curious as to how you corrected the taper on the collet adapter.

 

Thanks Joe for reminding me about this. I originally made the taper approximately 9 degrees by setting over the compound slide. Looking on the internet it said the taper for the closer for the 5C collet should be 1/4 degree less than the 10 degrees.

 

2341a.jpg.a0948e5cb6fd54a0b82711ffa59c9d36.jpg

Drawing of the 5C collet showing the 10 degree angle.

 

2337.thumb.jpg.4c65c48a651779cafa7a17c18fd01f51.jpg

 

When I found that the round metal bar I had fitted in the collet was not running true, the first time I tried fitting a collet in the spindle adapter. 

 

2338.thumb.jpg.fb6d5a59edf546202a7f0a3e57aa4214.jpg

 

I scratched my head and thought about how could I possibly cut an angle as accurate as 9.75 degrees.

 

Not having a 'fag packet' as I had packed up smoking! I sketched out an idea on the back of an envelope.

 

2369.thumb.jpg.e807f40bbed7b19566ac9de46b67fa5d.jpg

 

With trigonometry on right angle triangles,  if you know one angle and one length, you can find out the other measurements. Life is made a lot easier now with calculators on the internet rather than having to use log tables.

 

2341.thumb.jpg.39463b63076ac95886ccfc00c2ee3e61.jpg

 

First of all I checked the length of tailstock barrel I had. I then checked how much travel I had on my cross slide.

 

It seemed that 4 inches was the maximum I could use (see the back of an envelope drawing and calculations). The longer the length I could use, the more accurate my angle would be. To give me some idea of the different measurements for 'x' on the sketch for different angles. I calculated the 'x' measurements for angles of 10, 9.5, 9.9, 9.8, 9.7, 9.6, and 9.75 degrees.

 

If I was to use the tailstock barrel for measuring the angle I needed to make sure that the barrel was perfectly parallel with the lathe bed. I tried running the dial gauge along the barrel and adjusting the tailstock but managed to get myself into a complete muddle! The tailstock was more out of line than when I first started the adjustments!

 

I decided to use the tried and tested method of machining a bar at both ends to check they were both the same diameter.

 

Just to show that not everything goes to plan!

 

2342.thumb.jpg.36aec625512c33e84b5cef6c1e3cce13.jpg

 

Oh dear, what a shame, never mind. Let's try again!

 

2343.thumb.jpg.f9ba49c4b7ca0143f344aeda236ab68e.jpg

 

After a few trial cuts and adjustments to the offset of the tailstock . . . .

 

2347.thumb.jpg.e6d6db739ddd9538c4123989b03307e2.jpg

 

One end measured. . . .

 

2348.thumb.jpg.8f85e827f114398083efac44585d61a9.jpg

 

The other end measured.

 

. . . . I managed to get the tailstock back to the correct place. The diameters at each end of the bar measured the same.

Share this post


Link to post
Share on other sites

Now I needed to make mark out a length of 4 inches.

 

2349.thumb.jpg.d5c80a72cba3ddf544ccb9dd6d8fc72a.jpg

 

Set my dividers at 4 inches.

 

2350.thumb.jpg.f52e30a9448bfb1386f7a3a9d36c7b4f.jpg

 

Brushed some marking out blue onto the tailstock barrel and marked the positions of 4 inch length.

 

2351.thumb.jpg.f1b5be8c8f8a56b3e8cd6855f05a05c7.jpg

 

Insulated a lathe cutting tool with some thin cardboard and rigged up a bulb with a battery so that the bulb would light when the sharp end of the lathe tool was touching the tailstock barrel. I then set the cross slide dial to zero.

 

2352.thumb.jpg.46e312fa126fd4402cc66a03ea43dffe.jpg

 

The compound slide that had been set over, by eye, to 9.75 degrees was wound out to the approximate position of the 4 inch mark. The cross slide was turned in until it nearly touched the tailstock barrel and the compound slide was moved until it was exactly at the 4 inch mark. The cross slide was then turned in until the bulb lit and . . . .

 

2353.thumb.jpg.d9caed4f7508a8c7ef0e4bb978a12c7c.jpg

 

. . . . the reading read off on the cross slide. Therefore on my first attempt, as shown in the above photo I had turned the cross slide in by just under 0.691". Looking back at my drawing 'x' at 0.691" equals 9.8 degrees. The distance I was looking for was 0.688" for 9.75 degrees.

 

2354.thumb.jpg.9f6938c6ce4f6167d058cf788961fb7d.jpg

 

I gave the compound  slide a 'nudge' with the handle end of a hammer and checked what the measurement 'x' was again.

 

2355.thumb.jpg.d1ae3c6325430fbafaf9ad4cd0ec7ab2.jpg

 

This time I got 0.686 inches which I thought was good enough. I am sure that 2 thou out over 4 inches should be acceptable.

 

2357.thumb.jpg.3101cdf89d80fe1ee9e128c4983505b0.jpg

 

I then turned round the tool post and fitted a rounded end cutting tool into the end of boring bar and recut the taper which worked out OK when I refitted the 5C collet and tightened it up with the drawbar that I had made.

 

I now think I better get on with some more work on the engine that I have been putting off for some time.

  • Like 2

Share this post


Link to post
Share on other sites
12 hours ago, John S. said:

Mike, what is the wheelbase on the Humberette?

 

Hi John, the wheelbase is 7 ft 5 in and the track is 3 ft 6 in.

Share this post


Link to post
Share on other sites

That was REALLY clever. I'm not sure I'm up to the math myself but now that I've seen how it's done, it's worth struggling through.

 

jp

  • Like 3

Share this post


Link to post
Share on other sites

This is the link to the right angle triangle calculator that I used.

 

If you know the angle you want and either of one of the lengths of the other three sides of the triangle it will work out all the other sides and angle for you.

 

http://www.cleavebooks.co.uk/scol/calrtri.htm

 

It saves have to remember that "Some People Have Curly Black Hair To Prevent Baldness"

  • Like 2

Share this post


Link to post
Share on other sites

Hello Mike, Are you diving into your engine again?  I can hardly wait for your next update!

Al

  • Like 2

Share this post


Link to post
Share on other sites

Mike, Is your weather getting "fall like" or are you in the banana belt where the birds sing all winter?

Al

  • Like 1

Share this post


Link to post
Share on other sites
6 hours ago, alsfarms said:

Mike, Is your weather getting "fall like" or are you in the banana belt where the birds sing all winter?

Al

All of us that restore cars live in the banana belt in one way or the other!

  • Like 1
  • Haha 1

Share this post


Link to post
Share on other sites

Sorry for the dearth of posting recently. I have been laid up for a week, nothing serious, I have not been capable of doing very much. Got back to normal on Friday and carried on with some of the work to the engine conrods.

 

On ‎11‎/‎8‎/‎2019 at 2:30 PM, alsfarms said:

Is your weather getting "fall like" or are you in the banana belt where the birds sing all winter?

 

Al, yes, it is now Autumn and 'fall like'. Below is a photo out of our kitchen door that I took for you a couple of minutes ago.

 

2392.thumb.jpg.1f88ae24fadbe70825a36350a681c600.jpg

 

17 hours ago, chistech said:

All of us that restore cars live in the banana belt in one way or the other!

 

Ted, you are definitely right there!

 

2365.thumb.jpg.6521ee701d373ca57032c5824d2b8abe.jpg

 

I eventually plucked up the courage to machine out the smaller big end to fit the 14mm drill rod I bought some time ago to replace the 'shot' smaller big end pin.

 

Next, I needed to machine the bush on the smaller conrod to fit the diameter of the new big end pin.

 

2366.thumb.jpg.554afcc9a076c4288f2aeb240083421b.jpg

 

Eventually I managed to clamp the conrod and drill and ream the hole. I used a drill in the end that I found that was just under 14mm and then put the reamer through the bush.

 

2367.thumb.jpg.3f8528257cb523c0d58fe3f4901680d8.jpg

 

I was worried that the speed on my mill was too high at its lowest speed, so I put a socket and ratchet on the drawbar and turned the reamer by hand.

 

2368.thumb.jpg.e94beb23722876e1d46866e28270987a.jpg

 

Getting the drill rod to line up with the smaller conrod was a bit of a problem.

 

Once it fitted I cut the drill rod down to the approximate length required.

 

2370.thumb.jpg.8373ebc611d885e7de9c0b3a1e03141d.jpg

 

I measured the length of the pin and the measurement across the larger big end and needed to take off 0.126" from the length.

 

2371.thumb.jpg.c6e2b4682f12deb9d4763a4d7155ebfe.jpg

 

I think the photo above of the conrods and my comments on the photo describe my thoughts!

Edited by Mike Macartney
spelling (see edit history)
  • Like 2

Share this post


Link to post
Share on other sites

. . . . carrying on from the last post.

 

2372.thumb.jpg.305d6f7f6076c1a8cf0feee91761c773.jpg

 

The large big end journal has an oil hole on this side and another oil hole . . . .

 

2373.thumb.jpg.838b07a5c8af958471663f07b2d8a94d.jpg

 

. . . . on this side. I cleaned both of the oil holes out with a drill. On the smaller conrod there is only an oil hole on one side. I had a look to see if I could drill another oil hole on the other side, but thought better of it as I could not think of a easy way to hold the conrod for drilling.

 

2374.thumb.jpg.f7fd3dbd22f60fc62c04bf50babcfc4a.jpg

 

I had been wondering how to open up the hole for the 4mm diameter spiral locking pin in the smaller of the big end pins. A friend visited, to see how I was getting on with the Humberette and I showed him the problem. He said "Why don't you drill a hole for the pin on the other side?" Doh! - Why didn't I think of that!

 

2375.thumb.jpg.84394cf165401a2e4f7a99a13969afa5.jpg

 

OK, how am I going to fit this in the mill to drill the hole for the spiral pin? This idea is definitely not going to work as I need to get the conrod assembly fixed firmly. I would hate to have it move and break a drill halfway through the drilling process.

 

While I thought about it I decided to machine the smaller big end pin machined to the correct length.

 

2376.thumb.jpg.1fc9820ac2c32851021e62cbaacd259f.jpg

 

These 5C collets do certainly make life easier - THANKS JOE for the suggestion.

 

2377.thumb.jpg.a6f63044f4c485be62028e15bbb46aef.jpg

 

That's better - the pin fits flush with both ends.

 

2378.thumb.jpg.61bd1f3395c94043db68283746c95e1e.jpg

 

To clear the elongated hole, where the locating pin had moved, I kept putting drills through the hole at 0.1mm larger each time until I could get a 3.5mm diameter drill through both holes. I need to set the conrod up on the milling table so that the drill will be vertical in the hole.

 

2379.thumb.jpg.fd405555667fae6d92d0136f2bd05670.jpg

 

I had some small diameter drill rod (silver steel to the Brit's) that was a fraction larger than 3.5mm. This is where the collets came into use again, centre drilling the end so I could hold the end with a rotating centre, while I turned some of the rod down to 3.5mm to fit in the hole on the conrod. I am going to use this thin rod as an indicator to help get the holes vertical.

 

2380.thumb.jpg.687b1546cd9eff170089f515a034a5de.jpg

 

It fits in the hole. I should not have let go of the conrod assembly to take the photo. Where is the beautiful assistant when you need her!

  • Like 3

Share this post


Link to post
Share on other sites

Nice work Mike! Sorry, no joke for you today. Well, at least no jokes I can post. Some day if I ever get over the pond, we’ll sit down, have a drink (my wife too, she’s a professional), and I’ll tell you a bunch of our crazy yankee jokes! Michelle is always up for a little traveling to see the world.

 

I should also mention I haven’t even had a chance to get over to Joe’s place that’s only about 40minutes away! We need to talk some muzzle loader along with his incredible work on his Mitchell.

Edited by chistech (see edit history)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now