Mike Macartney

REPORTS ON A 1914 HUMBERETTE RESTORATION

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Wow! What a great score. Three pallets of machine shop goodies. That's the sort a thing we dream of, Mike. Especially here in Tasmania, where machinery and accessories are very hard to find. Well done.

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Glad to hear your okay.  Looks like you got a lot of nice stuff. That should keep you busy for awhile. 

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Hello Mike,

Some guys get all the good stuff and you are certainly one of "those guys"!  I am sure happy for you.  Keep up the good work.  Tell me how the McLaren fit, does it need some more tailoring?      🙂

Al

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Hello Mike,

That is a really nice set of machines, and the tools come by the pallet load! Am i jealous, not at all, well maybe a tiny bit 😇. As is mentioned before, I can only dream of it! Well, the McLaren, that super car is only meant to tease us, we are just a humble lot very old car drivers (both ways that is), aren't we?

Mike, on a serious note, I hope your health will improve and wish that you may use your machines a lot, during many years to come.

Regards,

Harm

Edited by Sloth (see edit history)
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On ‎2‎/‎17‎/‎2020 at 10:59 AM, Bush Mechanic said:

Wow! What a great score. Three pallets of machine shop goodies. That's the sort a thing we dream of, Mike. Especially here in Tasmania, where machinery and accessories are very hard to find. Well done.

 

I am not normally that lucky! It was definitely worth me asking about the extra bits in the photo! I paid a bit more than I would have done for the Bridgeport as I then knew all about the extra stuff.

 

On ‎2‎/‎17‎/‎2020 at 11:04 AM, Roger Zimmermann said:

Was the McLaren stolen and ended in your yard?

 

I could joke and make up a story, but I may get arrested if it is thought to be true. :) The truth will follow at the bottom of this post.

 

On ‎2‎/‎17‎/‎2020 at 2:36 PM, Laughing Coyote said:

Glad to hear your okay.  Looks like you got a lot of nice stuff. That should keep you busy for awhile.

 

Thank you Laughing Coyote, I am still struggling with the breathing, although I have managed to sort the tooling into boxes of the same sort of tools, eg. reamers, drills taps and dies, milling cutters. I have also spent about 1-hr each day cleaning the Bridgeport, I hope that this may help me learn something about the machine and find any broken or missing pieces. I wanted to do this before I wire it up and start using the machine.

 

On ‎2‎/‎17‎/‎2020 at 4:25 PM, alsfarms said:

Tell me how the McLaren fit, does it need some more tailoring?

 

Al, I didn't even attempt to sit in the McLaren. I even manage to get out of breath getting into a normal car.

 

On ‎2‎/‎17‎/‎2020 at 6:08 PM, Sloth said:

Well, the McLaren, that super car is only meant to tease us, we are just a humble lot very old car drivers (both ways that is), aren't we?

Mike, on a serious note, I hope your health will improve and wish that you may use your machines a lot, during many years to come.

 

Harm, you are starting getting to know me! :) I hope when the warmer weather arrives the breathing may improve a bit. At present I find it rather frustrating that I have given up smoking and my breathing seems to be even worse than it was with this cold damp weather.

 

On ‎2‎/‎17‎/‎2020 at 7:22 PM, mike6024 said:

Green hatchback. Practically unheard of. I've only seen a couple in California, but in orange.

 

Not many of the BMW 02 touring's in the USA, only personal imports, from memory. The one in the photo is my daughters, she took over the Jaymic BMW parts business from me when I retired.

 

Last Thursday was the day the McLaren turned up. A film crew were here making a film about a BMW 2002 that has been turned into an electric car. They were filming the parts being collected. I could not believe it, but they were here all day for that! The car was on loan to the presenter of the programme who is a motoring journalist. That is all the information I have managed to glean to date. One of Fays staff managed to 'blag' a drive round the village in it.

 

2630.thumb.jpg.12ba7218dd30fa187ca11a68ef13473b.jpg

 

" Have I got enough loose change in my pocket to make him an offer?"

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15 minutes ago, Mike Macartney said:

 

 A film crew were here making a film about a BMW 2002 that has been turned into an electric car. They were filming the parts being collected. I could not believe it, but they were here all day for that!

 

Press people and associates  are very  inefficient people: many years ago, I used a whole afternoon with my '56 Biarritz as a newspaper wanted to write something about Cadillacs. When the issue was printed, there was just one picture published and certainly not the best!

Edited by Roger Zimmermann (see edit history)

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On ‎2‎/‎19‎/‎2020 at 7:57 AM, Roger Zimmermann said:

When the issue was printed, there was just one picture published and certainly not the best!

 

When our local paper used to write articles about us, we used to joke that - "Only the facts have been changed to protect the innocent" .:wacko:

 

On ‎2‎/‎19‎/‎2020 at 8:32 AM, mike6024 said:

I owned a 1976 bmw 2002, bought in 1980 and sold about 1988. Terrific handling on winding roads through the hills.

 

I also loved all the 02's that I have owned over the years. Since I retired from the business, 15-years ago, the prices for these 02 BM's, in the UK, appear to have gone silly.

 

On ‎2‎/‎19‎/‎2020 at 8:36 AM, mike6024 said:

One of your competitors, in the USA went out of business, was losing money. "Bavarian Autosport Has Closed. "

 

I am surprised to hear that. Fay's company has been going strong and sells 02 & CS parts all over the world. Jaymic moved into dealing with 02's in 1983. Today seems a fitting day to mention 02's as to day is 20-02-2000 (in the UK way of writing the date). The early 2002 touring was badged 2000 and later the 2002.

 

Still not got back to working on the Humberette. Breathing very bad again yesterday, Dr put me back on steroids. Feel a lot better today.

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Just to let you all know that I am still in the "land of the living" as I have not posted anything for a while. I had a visit from Joe last Friday, it was a very enjoyable afternoon and evening with him, I even managed to twist his arm and take him down the pub for some warm draft beer.

 

Eventually, I shall get back to working on the Humberette, although I have a lot of sorting out to do, with the machines and tooling I bought.

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You didn't have to twist very hard!

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Mike, thanks for your concern. I am OK. I don't think this cold, wet and windy weather we are having here in the UK is helping much with the breathing. Slowly, walking up to the workshop, doing a little of the easy tasks like cleaning up the Bridgeport and sorting out the boxes of tooling. Jane has been helping me with anything that needs lifting or moving as any movement like bending down to pick something up makes me breathless. When sitting down, doing nothing, you would not think there was anything wrong with me. The problem is, I've always been a busy person and not very good at doing nothing! Not having anything to write up on this site in the afternoons I have been trying to learn a bit more about machining by watching some you tube videos, plus sticking some stuff on eBay and planning where to put more shelves in the workshop. I may have to give in an try and find a local handyman to help with some of the jobs I want to do in future.

 

I will attempt to start back on the Humberette when I have cleaned up and sorted out the new machines. I have managed to buy two pairs of old stock Harley Davidson V-twin fork and blade conrods at a reasonable price. I plan to 'cut and shut' these conrods to use in the Humberette engine. At least things like that are keeping me busy and my mind working.

 

On one of the machining forums, I read that a fellow who had bought a second hand Bridgeport, was spending lots of money on tooling for it. His wife said he was having a love affair with this new machine, so she has named his Bridgeport 'Bridget'.  I really like that story, so now I have Bridget and Sally, the surface grinder. I am looking forward to getting intermate with them in the days to come, at present we are just getting to know each other a little better! :)

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I do understand the “love affair” thing with a machine. I have what I call my 2 mistresses. They are housed at the local volunteer fire department.  The first is a 1978 Ford LaFrance and the other is a 1992 Ford E-One. I have never gave them a name, I just call them “my Mistresses”

I’m glade your on the road to recovery. My father in law has copd. He has had for many years. He has his good and bad days, it all depends on the weather. The cold and wetter it is makes it a bad day so I do understand what you are going through. Keep your head up and enjoy a pint or two at the pub. Spring is just around the corner. Mike

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Mike, You just can’t wait to touch them, get their wheels turning, and push their buttons!😄

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On 2/29/2020 at 3:23 AM, Mike Macartney said:

 

 

On one of the machining forums, I read that a fellow who had bought a second hand Bridgeport, was spending lots of money on tooling for it. His wife said he was having a love affair with this new machine, so she has named his Bridgeport 'Bridget'.  I really like that story, so now I have Bridget and Sally, the surface grinder. I am looking forward to getting intermate with them in the days to come, at present we are just getting to know each other a little better! :)

I kind of do the same thing but not with my possessions. Instead when I have a really nasty, rotten, PITA job to do around the house, I name them all after my first wife! My current wife, and last one, Michelle will often laugh and shake her head but this past summer got a kick out of me naming a big old 6’ Rat Snake we had in our yard after the ex. On that one she agreed the name probably fit!

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Since being stuck indoors not being able to do anything physical, due to my breathing problem, I have spent a lot of time reading posts on machining forums and the AACA forum, in addition to selling and buying a few things on eBay.

 

I found a guy who had a large collection of second world war Harley Davidson 45 parts and managed to buy two pairs of conrods for me to play with.

 

2640.thumb.jpg.01dfbb61f52e8f44a5c2530adb904c95.jpg

Harley Davidson 45 on the left, Humber V-twin conrods on the right.

 

Looking back on my posts, I see I mentioned this previously, but had not included a photo. After a visit to the doctor for a blood test on Wednesday, the nurse thought my breathing was terrible and called in the Doctor who checked me over and put me on yet another lot of antibiotics and steroids. He added, if you feel any worse, don't ring us, ring 999 for an ambulance! At least he didn't say ring the undertaker! You have got to laugh, but I must admit I am getting rather pee'ed off with not even being able to walk the 50 odd yards to the workshop. I tried it yesterday and needed 5 minutes to recover my breath, even before I attempted to empty the water from the dehumidifiers, I found I could not even manage to do that. I eventually managed to get back to the house and Jane kindly went and emptied them for me. With the damp weather we have been having, they need emptying every couple of days. The annoying thing is that my breathing is normal when I am sitting down not doing anything. Sorry for all this 'blurb' it's all a bit boring, but I felt I had the need to write something, perhaps I might have to start writing another book.:(

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Interesting development with the twin connecting rods; they are unusual for me. I have to add that I'm more interested with engine having more than 2 cylinders!

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14 hours ago, Roger Zimmermann said:

. . .  I have to add that I'm more interested with engine having more than 2 cylinders!

 

I had noticed Roger. I think the Humberette would actually fit inside one of your actual cars. Although, it would be the other way round for your models. :)

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MIG Welding engine conrods

Can any member give some advice on the following bit of MIG welding that I would like to do. I have MIG welded, on and off, since around 1973, but only on vehicle bodywork and welding up angle iron fames, and the like.

 

As mentioned  previously I would like to change the conrod set up to a fork and blade system so that I can use roller bearings on the big end rather than the phosphor bronze bearings of the original. I also feel that it may give the engine improved balance and less vibration.

Now here comes the problem. The Harley conrods are around 7.5” between centres and the Humber conrods are around 9.5” between centres. Therefore, I need to increase the rod length by approximately 2”. I think I have two options.

I can cut a section out of one set of rods Harley rods and weld it into the other set of Harley rods. Or, my preferred option would be to machine up a section of new steel to match the section of the Harley conrod and MIG weld them into the cut rods. The rods would be cut at a diagonal of 45 degrees to increase the weld length and I would make a sturdy jig to hold the parts in place before and after welding.

If money was no object the obvious thing to do would be to have new conrods made. As good running examples of these Humberette’s only fetch between £10k and £15k, and I have spent more than this on the car to date, and still need to spend more, I don’t want to go down that expensive route of having new rods made. I also don’t have the machining skills necessary to make them myself from a steel billet. My question is if I buy ‘new steel’ to make the section, that I would like to weld in, what specification of steel would be best for welding to the old Harley Davidson conrod material and does anybody have any tips that may help with the welding? Another question - does anybody know what material Harley Davidson would have used for the conrods during the WW2, or have a suggestion on who to ask? Below is a drawing I have made of the blade type HD conrod.

2141626060_HarleyDavidsonConrods.thumb.jpg.53dc4af715bca96b21d1ce64251503f2.jpg

Do you think that I should I also post this query in the main part of the forum? 

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Maybe some will not agree: from a friend who had a construction business, MIG is not suited for thick parts. Further, if I know that a connecting rod in an engine has been welded, I would go away as fast as I can from this engine!

Unfortunately, I cannot answer to your question, except that your query may get more anser if posted in the technical forum.

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I'd have serious reservations about welding con rods, mostly because failure would be so catastrophic. I've heard of it being done but my guess is that you'd need to x-ray the welds afterward to make certain they were perfect. How about making them whole out of 7075 aluminum? Because of the way they are constructed it would be a lot easier than a conventional rod. The only serious problem would be getting the hole for the bearing perfect and that could be done with a reamer ground to the exact size needed.

 

7075 is tougher than the conventional 6061 - the tensile strength is very close to mild steel. It's commonly used for gears and, I think, aluminum rods as well. I know it is stronger than Lynnite - the alloy used around 1918 for pistons and for Franklin connecting rods a little later. The big proponent of aluminum for engine parts was Laurence Pomeroy, once chief engineer at Vauxhall. After WWI he moved to America where he worked for Alcoa developing alloys for engine applications. I have some period SAE papers on the subject I can send you.

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Thanks Roger and Joe for your posts. I also put a post on a MIG welding forum and had umpteen posts that recommended that I don't do it. I like the idea of attempting to make them out of aluminium. Maybe, I may attempt that at a later date. Joe, I will ask you, for a copy of the SAE papers if I do decide to attempt the conrod making in the future. Firstly, I need to get my breathing back to at least some normality, so that I can get back up to the workshop and actually do something, rather than sitting about thinking of ideas!

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Mike thanks for the size of the Harley conrods and the material they are made from. (for some unknown reason the post does not seem to be here?).

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If you machine them from scratch, there is no need to copy the original dimensions exactly, especially the taper to the long section. Clearance is the only thing that matters. The conventional shape of a con rod was dictated by the need to remove it from a forging die, not the actual stresses on the rod. If you look at the "machined all over" rods used on some very expensive cars (Simplex comes to mind) you will see that the center portion is often straight. The highest stress comes at the center. It should be perfectly acceptable to increase some of the dimensions to the maximum amount the clearance allows.

 

 

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