Oil Change

Are ya having a problem with your rig? We'll try to help. Share your tech tips and experiences here. Dr. Billy Glaser, author of the "Unofficial 750 Ural Service Manual" site myural.com, is moderating this section.
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Here is the place for you to ask questions about or share your experiences about servicing or repairing your Ural or Dnepr. Please post topics concering modifications or accesories in the "Modifications and Acessories" section. Please post oil related questions in the "Oil Threads" section.
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Canadian FJR
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Oil Change

Post by Canadian FJR » Wed Jun 07, 2023 7:53 pm

https://m.youtube.com/watch?v=ha0CGX3IG ... wgY2hhbmdl

Never heard of using Teflon tape on the threads before. If is a common practice ?

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Re: Oil Change

Post by Lokiboy » Wed Jun 07, 2023 8:40 pm

Not that I’ve ever heard. A copper crush washer (any auto store) is my preferred method
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Re: Oil Change

Post by Tomcatfixer » Wed Jun 07, 2023 9:34 pm

That's a new one to me, too.
Stick with the crush washer or dowty washer.
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Re: Oil Change

Post by Desantnik-VDV » Thu Jun 08, 2023 1:22 am

He used to be a plumber.
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Re: Oil Change

Post by windmill » Thu Jun 08, 2023 8:09 am

I've been doing a bunch of OEM certification classes and the only mention of it I've seen is to NOT use it because it could potentially get into the lubrication system causing a blockage.

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Re: Oil Change

Post by n3303j » Thu Jun 08, 2023 3:11 pm

Those plugs come with O Ring and washer. No reason to use Teflon tape. Teflon tapes is for sealing tapered pipe threads not for sealing straight threads.
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Re: Oil Change

Post by Mr Wazzock » Sun Jun 11, 2023 4:28 pm

Oh the perils of looking at stuff on the internet! :lol:

Is it a water pipe union? No. Did it leak without the tape? No. :D
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Re: Oil Change

Post by RC20 » Mon Jun 12, 2023 8:36 pm

It is truly astonishing but I have seen plumbers use Teflon tape on flare joint, compression joints and O ring joints (many commercial toilet fixtures have O rings.

If you are lucky, it does no harm, if not, you can cause a joint designated for a different form of sealing than tapered threads to leak.

Basically its gross ignorance of how a sealing joint works. You would think the Union would train its plumbers correctly but nope.

And Teflon tape will break off the threads and get into the mechanism and I have seen carnage caused by that crap in the mechanism.

The only place I would use it was one time gas line joints and joints for air breathing (Flight simulator using compressed air to emulate oxygen mask ops)

There is a line of goop called Gasoila that is far better than Teflon tape (or goops)

And while it takes a long time, most Teflon tape is not oil rated. Yep, diesel or gasoline tapered threads will leak in a few years because the petroleum eats through it. Most annoying to have to go back and fix a bunch of those joints.
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