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81
Your Own Design / Re: 1/5th Scale Denny Improved Ericcson
« Last post by Admiral_dk on March 26, 2024, 07:52:04 PM »
Another batch of nice looking parts  :ThumbsUp:

Per       :cheers:
82
From Plans / Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Last post by Admiral_dk on March 26, 2024, 07:49:31 PM »
A very succesful rescue job Achim  :ThumbsUp:

Sounds and runs very well  :praise2:

Love the 'Blue Cheating Water' to make it more visible  ;D

Per      :cheers:
83
Hints, Tips & Tricks / Re: 1/4” Union cones in USA
« Last post by Andyreww on March 26, 2024, 07:37:07 PM »
These items were discussed several years ago on another forum. Most people said they made their own or had a friend with a lathe make some. But I recall there was a New York City firm mentioned that specialized in repairing coffee and espresso machines that had them. Might be worth a google search using "espresso pipe nipples soldered" or something like that. Good luck!  :cheers:

(If you cant find any, I do know there are a few places in UK you can get them, original purpose for old car repairs. MG used them on some cars. But shipping may be costly from UK)

Thanks for this, yes, a lot of suppliers in the UK, may have to pay shipping unfortunately. I will take a look at coffee machine parts though - thank-you!
84
From Plans / Re: 30ft 1890's navy steam launch 1/6th scale
« Last post by tghs on March 26, 2024, 07:33:30 PM »
gimping around, but starting to get back to things, using cero-bend made the main parts of the exhaust header pipe, used a ball-end mill to form the joint end, (milled it with the cero-bend still in the pipe) still have to make the fittings so the vacuum gauge and feed pump exhaust can be hooked up.. it also gets a flanged top and plate with a fitting so the boiler could be blown down thru the condenser.. :cheers: 
85
Hints, Tips & Tricks / Re: 1/4” Union cones in USA
« Last post by Jasonb on March 26, 2024, 07:31:52 PM »
Plenty of the UK model engineering suppliers do them either called nipples or ferrules. We us ehem a lot more than the US which likes it's threaded pipe and fittings. Which may be why they are available stateside under 4mm as the threaded fittings start at 3/16

If it is just a few you need they are not hard to make.
86
Hints, Tips & Tricks / Re: 1/4” Union cones in USA
« Last post by cnr6400 on March 26, 2024, 07:15:18 PM »
These items were discussed several years ago on another forum. Most people said they made their own or had a friend with a lathe make some. But I recall there was a New York City firm mentioned that specialized in repairing coffee and espresso machines that had them. Might be worth a google search using "espresso pipe nipples soldered" or something like that. Good luck!  :cheers:

(If you cant find any, I do know there are a few places in UK you can get them, original purpose for old car repairs. MG used them on some cars. But shipping may be costly from UK)
87
Your Own Design / Re: Kearsarge Windlass Engines
« Last post by cnr6400 on March 26, 2024, 07:03:04 PM »
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn: Glad the inflatable pant  leg air bags worked for the elves. Hope they've got their wheelbarrows and the Mann truck handy for all the solid gold brass chips soon to be flying!  :Lol:
88
Your Own Design / Re: Mercedes-Benz W165 Grand Prix engine in 1:3 scale
« Last post by Vixen on March 26, 2024, 06:44:35 PM »
Thanks Chris,

I think myself lucky that the Honda Cub oil pumps were such a perfect match for the model W165 engine. And even more lucky to have two sitting in my "Come in handy, one day" box for more than twenty years just waiting for their day.

Mike
89
Your Own Design / Re: Mercedes-Benz W165 Grand Prix engine in 1:3 scale
« Last post by Laurentic on March 26, 2024, 06:36:32 PM »
Like that Mike - very neat job.

Chris
90
Your Own Design / Re: Mercedes-Benz W165 Grand Prix engine in 1:3 scale
« Last post by Vixen on March 26, 2024, 06:27:25 PM »
The race engines designed and built by Mercedes Benz during the 1930' Silver Arrows era were by far the most powerful engines of their day, now we would call it cutting edge technology. The use of hand welded fabricated steel cylinder blocks, the multiple oil pumps in the dry sump and the external coolant pump and the supercharger scavenge pump (internal gear layout) were a common design feature on all their engine designs. Was that a classic case of "If it ain't broke, then don't fix it"?.

The housing for two external scavenge pumps were profile turned for 40 mm diameter aluminium bar stock, parted off and trimmed to length in the lathe.







The housings were then transferred to the mill to enable the internal features and outside profile to be machined. The large pocket was machined to exactly fit the modified Honda pump components. Note the two oil transfer passages which connect the pump inlet and outlets to the outside face of the pump.







The housings were cleaned up and the Honda oil pump components were the pressed into the pump housings. I used a little Loctite sealant to seal the joints. The two oil transfer ports can be seen peeking out over to the left.








The outer cover and pipe connections to the outside world, will be completed in the next installment from Vixen's Den.

Stay tuned

Mike
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