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Oil drain plug crush washer / sealing washer

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IdahoBob
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Re: Oil drain plug crush washer / sealing washer

Post by IdahoBob »

I just flip it over and re-use it. They last many, many uses.
Idaho Bob
67, 71, 85, 98 wagons (sold)
78 coupe (gave to mechanic, thanks!)
02, 04 (X2) & 08 XC70's
before that: 67 Sunbeam, several pre-68 VW's, '41 Buick, '42 Ford Jeep, and some boring stuff
cn90
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Re: Oil drain plug crush washer / sealing washer

Post by cn90 »

- Helping a friend with leaky drain washer without draining the oil.

- This is just generic procedure for virtually any car.

- DEFINITELY need a helper (in this case my son) to apply vacuum to the filler hole.

- Have a drain pan ready just in case.

- Once the drain plug is removed, you will hear gurgling sound from the vacuum sucking and air entering the drain hole. Make sure the old gasket is removed and the surface is clean. Then swap a new gasket in and torque properly.

- It is as easy as 1-2-3...

The video below shows a rag, but we did NOT use any rag. No need for the rag.
Just remove the vacuum hose and clean with a garden hose for the tiny amount of oil that might have entered the hose itself (maybe 2-3 drops or so).


2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
jonesg
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Re: Oil drain plug crush washer / sealing washer

Post by jonesg »

IdahoBob wrote: Sat Dec 02, 2017 5:36 pm I just flip it over and re-use it. They last many, many uses.
copper can be annealed with a propane torch.
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GlennG2759
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Re: Oil drain plug crush washer / sealing washer

Post by GlennG2759 »

For the price buy a couple dozen, same one for transmission drain plug
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kallekula
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Re: Oil drain plug crush washer / sealing washer

Post by kallekula »

cn90 wrote: Wed Jul 08, 2020 5:58 pm - Helping a friend with leaky drain washer without draining the oil.

- This is just generic procedure for virtually any car.

- DEFINITELY need a helper (in this case my son) to apply vacuum to the filler hole.

- Have a drain pan ready just in case.

- Once the drain plug is removed, you will hear gurgling sound from the vacuum sucking and air entering the drain hole. Make sure the old gasket is removed and the surface is clean. Then swap a new gasket in and torque properly.

- It is as easy as 1-2-3...

The video below shows a rag, but we did NOT use any rag. No need for the rag.
Just remove the vacuum hose and clean with a garden hose for the tiny amount of oil that might have entered the hose itself (maybe 2-3 drops or so).


Never seen that being done before!

BMW 540i 2002
S70 Base 2000
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volvolugnut
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Re: Oil drain plug crush washer / sealing washer

Post by volvolugnut »

jonesg wrote: Wed Jul 08, 2020 8:08 pm
IdahoBob wrote: Sat Dec 02, 2017 5:36 pm I just flip it over and re-use it. They last many, many uses.
copper can be annealed with a propane torch.
Added information on annealing crush washers: The copper will work harden (multiple shape changes cause hardening) from the crushing force (I assume it takes several crush cycles). As suggested by jonesg, the copper washer can be heated to near red hot by a torch and let air cool to anneal back to a soft condition. The soft, annealed washer will crush to conform to the minute differences between the drain bolt and pan surface. Once the washer is removed, reuse will change the position of the mating and may allow leakage.

Same annealing works for copper tubing. If your copper tube needs a new bend, but is too stiff, anneal with a torch and bend as needed.

volvolugnut
2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple parts cars.
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