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Old 21-01-17, 10:06 PM   #1
Hornet 6
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Default Leo Compressor

Just purchased this on a whim, not sure I really need it, but it's something to run that doesn't need gallons of water. Lol
Anyway I know nothing about it other than it turns over, nothing is seized and it makes sucking and blowing sounds when turned.
I will strip it down and clean/paint and get it in reliable working order.
However I would like any info or books/manuals that anyone may have a link to. For now my question is what is the right angled pipe threaded into the crank case, lower left of pic being pointed out by the screwdriver.
I am assuming the inlet is the atmospheric valve under the round brass cover on the head & the outlet is snapped off pipe on the right of the head in the pics ?







Neil.

Last edited by Hornet 6; 21-01-17 at 10:10 PM.
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Old 21-01-17, 10:25 PM   #2
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I'd go with remote oil drain. (I know nothing apart from beer 5 on Saturday)
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Old 21-01-17, 10:37 PM   #3
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Looks like garage tyre inflation kit, image at bottom of page of complete item.

http://www.bloggen.be/oldbikes_oldcars/

A bit more info here.

http://www.mig-welding.co.uk/forum/t...pressor.31577/

Last edited by ListerHA2; 21-01-17 at 10:44 PM.
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Old 21-01-17, 10:51 PM   #4
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Quote:
Originally Posted by Appletop View Post
I'd go with remote oil drain. (I know nothing apart from beer 5 on Saturday)
Very close I think, between posting and now I have reduced it to a pile of parts, crank still in as I will need a puller for the V pulley, metric spanners I have at home, but no pullers in the cutlery draw I'm afraid, I'll try and correct that tomorrow.

It looks like the pipe should stick straight up, the little thumb wheel is a drain, oil goes in the big alloy spout marked oel, big end has a dipper.
My thinking is so long as oil gets dipped, without a continuos mist coming out of the filler, I have enough in there.
Although it would be easier if I found a dipstick, or at least the measurements for one.

Neil.

Last edited by Hornet 6; 22-01-17 at 01:06 AM.
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Old 21-01-17, 10:54 PM   #5
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Quote:
Originally Posted by ListerHA2 View Post
Looks like garage tyre inflation kit, image at bottom of page of complete item.

http://www.bloggen.be/oldbikes_oldcars/

A bit more info here.

http://www.mig-welding.co.uk/forum/t...pressor.31577/
Ok, not seeing anything about compressors, just old cars and bikes in the top one.
Lower link is to a forum I'm not registered for, so no pics to see.

Neil.
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Old 21-01-17, 11:04 PM   #6
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Strange, I get the motorbike/car page up with the bottom image being of a Leo compressor, I'm also not on the welding forum.

The images were found by a simple Google search "leo compressor".
A Google image search turns up the image in the first row of pics.
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Old 21-01-17, 11:25 PM   #7
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Ok, found it, missed it on the first one, just saw the hose
The mig welding forum ones I can see now I'm logged in, seems I was a member after all.
The all look like the same base unit, not many about it seems.
Wonder how well it will work ?

It's only real problem has just surfaced, I have spent 15 minutes digging rust and crud out of the v pulley looking for the grub screw, only to find the pulley should have been retained by the nut on the end of the crank, the end of the crank was once threaded, but snapped off years ago judging by the corrosion.
Probably not a huge problem as I can just use a taper fit collet type pulley of whatever size I decide I need.

Neil. :)
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Old 21-01-17, 11:32 PM   #8
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The images on the welding forum seem to be of a gear driven type with a mounted motor design.
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Old 21-01-17, 11:36 PM   #9
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Quote:
Originally Posted by ListerHA2 View Post
The images on the welding forum seem to be of a gear driven type with a mounted motor design.
But the working parts seem the same, cylinder and head if you like, as well as the inlet valve and oil filler/breather.

Neil.
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Old 24-01-17, 12:27 AM   #10
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Ok, now got the crank assembly in bits, all bearing are re-usable so thats good.
But I have a question on bearing lube....
The big end has a blade type dipper so thats sorted, but the mains are a different story.
As I found it the main bearings, crank and spacers have what looks like a very thin crust of burned grease, there was a little soft grease in the channel machined in the crank case, see pics.



Above is the crank, showing a roller bearing to the left, then two spacers, one goes inside the other, then on the right is the second bearing, a caged ball race this time. The outer cover plate has a soft felt seal ring, in good nick, no gasket or sealer was in use on this plate.
My quandary is should it actually have had grease in there, as that would mean no oil would get in there to the bearings, and they were dry. My thinking is the dipper would throw enough oil about, or this a flawed assumption.
A few more pics, the first is the end cap, felt seal is in place, the last two show the lube channel in the crank case from both sides.







Your thoughts would be most welcome.

Neil.
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