Oil Can #2

rwm

Robert
H-M Lifetime Diamond Member
Joined
Mar 25, 2013
Messages
3,140
I was greatly inspired by Hackmasters beautiful oil can clone. I decided to do a run of my own with a simpler design. It was suggested that I start a new thread here and not hijack the other thread.
The plan was originally solid brass. I realized that the pump housing would add too much weight so I went with an aluminum pump housing.

I was sort of emulating this original as posted by Hackmaster:

EAGLE66.jpg



Here is the base pattern:


14%2B-%2B3.jpg


14%2B-%2B2.jpg


14%2B-%2B1.jpg


Its about 3/16" thick at the edge. I will turn it down more when it is brass.


R
 

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rwm

Robert
H-M Lifetime Diamond Member
Joined
Mar 25, 2013
Messages
3,140
Trigger
14%2B-%2B8.jpg


14%2B-%2B7.jpg


Starting the pump housing
14%2B-%2B2.jpg


14%2B-%2B1.jpg




Had to make a homemade drive dog for this. The housing is turned to fit the ID of the brass tubing that will be the container.
Next step is to mount in in a 4 jaw chuck and bore holes for the piston and the output tube.
Setup for reaming the pump housing:


14%2B-%2B5.jpg


It was good to do the boring on the lathe because I could drill ream and tap the threads accurately in the same line.


14%2B-%2B1.jpg


The large brass screws just mark the threaded holes for the pickup tube and the output. All the passages are now crossdrilled. I have to figure out the valving next.


Here is the brass tube segment.


14%2B-%2B3.jpg


I ended up cutting it with the portaband. Worked fine. I will finish the ends on the lathe or disc sander so it is really square and smooth. This will get soldered to the base after it is cast.

_____________________________


I made some progress!


14%2B-%2B3.jpg


14%2B-%2B2.jpg


14%2B-%2B1.jpg


14%2B-%2B4.jpg


14%2B-%2B5.jpg


I am very pleased so far. But will the trigger leak???
Next is casting the base and the lid.

I bored holes in the brass tube on the mill :


14%2B-%2B1.jpg


14%2B-%2B2.jpg


14%2B-%2B3.jpg
Here it is mocked up with the base and the cap.
Now I just have to find the time to cast these parts!

______________________

Casted tonight and got two usable sets:


14%2B-%2B6.jpg


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14%2B-%2B4.jpg


14%2B-%2B3.jpg


14%2B-%2B2.jpg


14%2B-%2B1.jpg


I used mixed yellow brass. I am not sure how the color match will be with the rest of the parts. If it is way off I may have to go to 85 three 5 and re-cast them.
I did a little experiment and put the runner in the drag for one and the cope for the other. Both look OK so far. I got to 1800 on the TC and then skimmed and poured. The discoloration is normal for Petrobond and will come right off.





_________________________________

I machined the castings. One had a few large defects but I machined them off.


Base:
14%2B-%2B2.jpg


Top:
14%2B-%2B3.jpg


14%2B-%2B2.jpg


14%2B-%2B1.jpg


Looks pretty good!

________________________________

Time to solder the body to the base. I was worried about the best way to apply the solder. I came up with this. I made a round ring of solder that fit inside the body. I then fluxed both pieces, assembled it and heated from the outside. It worked great!


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You can't see the solder joint at all after cleanup.

Here is the detail of the cap and hold down screw. Note the vent notch.


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This one is a Christmas present so I need to make some more for my shop!


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I did all the valve housing boring and tapping on the lathe again. No problems.

______________________________

I started some plans on Sketchup. I'm not real familiar with that program but it seems to work OK.


I will post these here as JPGs.




Oiler%2Bcontainer.jpg


Oiler%2Bpump%2Bhousing.jpg


Oiler%2Btrigger%2Band%2Bpiston.jpg


Oiler%2Binlet%2Bvalve.jpg


Oiler%2Boutlet%2Btube.jpg


Oiler%2Bmisc%2Bparts.jpg


Machining and Construction Notes:


Container-


The brass tubing for the body is standard for bar rails (US). 2" OD, 0.050" thick.


Valves-


Small spring for the outlet valve- A very light spring is needed. These can often be scrounged from small electronic devices like tape players, old VCRs etc. If the spring length is not right just stretch it. An extension spring can be stretched out to make a small compression spring. This spring should barely push on the ball.


The inlet valve does not use a spring. Gravity and oil pressure work fine. The piston spring captures the ball bearing for this valve.


The pickup tube should not protrude up and interfere with the ball. The pickup tube may be up-sized if very think oil is anticipated.


A twist drill leaves a nice valve seat if there is no chatter. Check for this. The valve seats can be polished with Dremel type tools or a dowel with rouge.


Pump housing-


You cannot do the boring/reaming on a lathe with out a good 4 jaw chuck.


The housing is turned on the lathe as shown to create curved ends. This allows a perfect seal inside the brass tube accommodating rubber washers that are .050" thick. The correct housing width is 1.800".


Start by drilling the vertical passage. Drill first all the way through with 5/32 and then up-size each end.


It is critical that the hole for the piston and the piston bushing be accurately concentric. Drill, ream, and tap this in consecutive operations without changing the work holding fixture whether lathe or mill.


The other passageways are not so critical.


The boss at the top of the housing looks good but may interfere with work holding. Plan it out.


Outlet tube-


Grip a 3/8 x 24 x1" screw by the threads and turn the head round. Then you can grip it by the head for drilling operations. This gets finger tightened against an O ring in the housing. The nut is then tightened down on the container body.


All non-threaded connections can be soldered with regular low temp solder and a propane torch. Turn the piece on the lathe and file off any extra solder.


15%2B-%2B1.jpg

_________________________________

Stainless anyone?


15%2B-%2B1.jpg


This is for use with cooking oil.

R
 

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brav65

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Sep 24, 2014
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Incredibly nice work. I am new to all of this, but plan to make this one of my projects. Thanks!
 

David S

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Nov 18, 2012
Messages
1,339
Extremely nice machining, but also photography and documentation.

Thank you for posting.

David
 
F

f350ca

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Beautiful work, it belongs in a museum of art.

Greg
 

sgisler

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H-M Supporter Gold Member
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Feb 27, 2012
Messages
377
Great project! Thanks for the fantastic write up. For not being familiar with Sketchup, the drawings look quite good!
Putting these on my to-do list.


Sent from my iPhone using Tapatalk
 

MikeWi

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Jan 21, 2013
Messages
643
I was trying to envision how the pump was made and it's so obvious once someone else points it out! :) This is definitely going to be a future project as I've yet to find an oil can that I really like.
 

Mark_f

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Jan 16, 2020
Messages
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Thank you for posting your write up. You did great work here and should be very proud of it. I have a question. Where did you find 3/8-24 brass bolts? I cannot find them anywhere. Not even McMaster Car or on the web. I can't even find them in stainless. Did you make them?
 
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