Mechanical Trick?
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Lead Driver
Joined: Mar 2008
Posts: 7,192
Likes: 384
From: Near Los Angeles
Mechanical Trick?
Hey guys. I have a saginaw p/s pump with dual return tubes. I need to cut the return tubes just past their flair so I can slip on compression hose fittings. But I can't get metal shavings into the tube or into the system. How can I prevent that?
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,247
Likes: 5,815
From: S/W Missouri, Polk county
Its new right, can you get some air compressor air going in the big fill port and coming out the tube end you need to cut? That should make the cut shavings be forced OUT while cutting. Or put a shop vac on the end of the tube you want to cut and try that? Or do BOTH, by pushing air in one end and sucking out the other that might work?
Laughing Gas
Joined: Nov 2016
Posts: 857
Likes: 63
From: Oxnard
In addition to what Rich indicated above (77&79F250) try incorporating / rigging a magnet close to where you have to cut. Or if there's clearance use one of the mini pipe wheel cutters, the type plumbers use to cut copper pipe. If there's enough room to use a mini pipe cutter, take it slow to minimize ruining the cutting wheel, instead of a 1/2 tightening turn per revolution, tighten it 1/8 turn. And be ever so careful when reaming removing burs after the cut, then flush with clean fluid and compressed air when finish. Lastly, incorporate a power steering filter, usually local parts stores sell them cheaper than the various catalogs offering parts and accessories for our 73-79 dentsides.
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Lead Driver
Joined: Mar 2008
Posts: 7,192
Likes: 384
From: Near Los Angeles
Great information. Thanks for the tips and know-how. Also, thanks for the YouTube how-to. I had seen that before, but it's always good to refresh, especially right before the work begins. I'll post a photo when the project is done.
Fleet Mechanic
Joined: Nov 2009
Posts: 1,398
Likes: 6
I'm a little confused here. Will you be removing the tube to do your mod? If not, why? Seems that you will be able to take care of the cleaning portion a whole lot easier that way. As stated above, all good tips. Also, if you can get one, I recommend a pipe deburring tool. It make cleaning the inside of the tube a lot easier. The link below is only for reference. You can get these at most hardware stores.
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Tuned
Joined: Dec 2015
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From: Big Sky MT
You can also stuff some paper towel into the end past where you are cutting. Then pull it out afterwards.
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
Thanks for all the information, guys. I think I will go ahead and remove the reservoir. It seems that would be surest way to prevent shavings from getting into the system.
To answer a member as to why I was using compression fittings on a low psi line: I got tired of them leaking at the hose clamps.
To answer a member as to why I was using compression fittings on a low psi line: I got tired of them leaking at the hose clamps.
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