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Old washer change torque? #4722797
04/10/18 02:08 PM
04/10/18 02:08 PM
Joined: Sep 2005
Posts: 330
New England
pda1122 Offline OP
pda1122  Offline OP

Joined: Sep 2005
Posts: 330
New England
Just wondering if reusing your old drain plug washer has any effect on torque values. Iím guessing itís very minimal but something to think about


‚Äė19 Grand Caravan- factory fill
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Re: Old washer change torque? [Re: pda1122] #4722827
04/10/18 02:57 PM
04/10/18 02:57 PM
Joined: Jan 2017
Posts: 362
Ontario, Canada
newbe46 Offline
newbe46  Offline

Joined: Jan 2017
Posts: 362
Ontario, Canada
I have re-used old drain plug washer on a few occasions. I don't recommend it but if I must do it, I won't lose sleep over it either. Assuming my torque wrench is calibrated spot on, then I might just put another lb-ft more than what's called for. As long as I don't see any drips of oil from the drain plug, I'll call it a day.


2003 E46 M3 Convertible
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Re: Old washer change torque? [Re: pda1122] #4722837
04/10/18 03:08 PM
04/10/18 03:08 PM
Joined: Apr 2013
Posts: 2,559
The Northeast
mclasser Offline
mclasser  Offline

Joined: Apr 2013
Posts: 2,559
The Northeast
I've used the same combo wrench for years on my drain plugs so I have a good feel for when everything is tight enough. I reused a crush washer once and it caused a leak. I had to go back and snug up the plug an extra 1/16th of a turn to stop the leak. A new crush washer wouldn't have needed that extra snugging up.


2018 Hyundai Elantra VE
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Re: Old washer change torque? [Re: pda1122] #4722849
04/10/18 03:30 PM
04/10/18 03:30 PM
Joined: Apr 2017
Posts: 1,522
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline

Joined: Apr 2017
Posts: 1,522
Ontario, Canada
Why would you reuse a crush washer?


Mighty Mouse Tech
BMW Tech, Former Acura Tech
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Re: Old washer change torque? [Re: pda1122] #4722881
04/10/18 04:09 PM
04/10/18 04:09 PM
Joined: Sep 2015
Posts: 1,701
USA
mk378 Offline
mk378  Offline

Joined: Sep 2015
Posts: 1,701
USA
The torque spec is based on not stripping the threads. If it leaks when properly torqued, you need a new washer.

Re: Old washer change torque? [Re: pda1122] #4722907
04/10/18 04:51 PM
04/10/18 04:51 PM
Joined: Jun 2003
Posts: 5,979
Illinois
SHOZ Offline
SHOZ  Offline

Joined: Jun 2003
Posts: 5,979
Illinois
When I have reused them I just flip them around. When you have to pry them off the plug threads then I change them.


2008 Hyundai Accent 1.6L 5 sp manual hatchback
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Re: Old washer change torque? [Re: pda1122] #4722932
04/10/18 05:45 PM
04/10/18 05:45 PM
Joined: Mar 2014
Posts: 3,829
NJ
Leo99 Offline
Leo99  Offline

Joined: Mar 2014
Posts: 3,829
NJ
I've reused them. Never used a torque wrench. Just get it good and snug.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles (RIP)
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2004 Rav4 370,000 miles
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Re: Old washer change torque? [Re: pda1122] #4722965
04/10/18 06:25 PM
04/10/18 06:25 PM
Joined: May 2014
Posts: 1,553
Minnesota
philipp10 Offline
philipp10  Offline

Joined: May 2014
Posts: 1,553
Minnesota
Originally Posted By: pda1122
Just wondering if reusing your old drain plug washer has any effect on torque values. Iím guessing itís very minimal but something to think about


I have never replaced my washers....ever. And I use my arm for my calibrated torque wrench. Never have had a leak.

Re: Old washer change torque? [Re: SHOZ] #4722987
04/10/18 06:47 PM
04/10/18 06:47 PM
Joined: Dec 2016
Posts: 8,046
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,046
Waco, TX
Originally Posted By: SHOZ
When I have reused them I just flip them around. When you have to pry them off the plug threads then I change them.


Same here... still serviceable = still in service!

I have never "torqued" an automotive drain plug in my life.

I know when to stop - most jiffy shops stops when it's about 3% away from stripping the threads out!


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Old washer change torque? [Re: pda1122] #4723445
04/11/18 09:39 AM
04/11/18 09:39 AM
Joined: Apr 2007
Posts: 787
Connecticut, USA
bmwpowere36m3 Offline
bmwpowere36m3  Offline

Joined: Apr 2007
Posts: 787
Connecticut, USA
Flip the washer around... or if its copper, heat it (dull red glow) and let it cool slowly. I always replace them (have a huge assortment), but for the odd size I don't have and in a pinch... I'll try and reuse.

Re: Old washer change torque? [Re: Leo99] #4724280
04/12/18 03:22 AM
04/12/18 03:22 AM
Joined: Sep 2008
Posts: 274
California
Loopie Offline
Loopie  Offline

Joined: Sep 2008
Posts: 274
California
I just keep on reusing them and no torque wrench needed.

Last edited by Loopie; 04/12/18 03:23 AM.

09 Hyundai Sonata 140K - Fram Ultra with 5W30 Mobil HM synth
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Re: Old washer change torque? [Re: pda1122] #4724290
04/12/18 04:14 AM
04/12/18 04:14 AM
Joined: Jan 2011
Posts: 2,948
N.Ohio
Lubener Offline
Lubener  Offline

Joined: Jan 2011
Posts: 2,948
N.Ohio
Just snug it up, no rocket science here.


The "thinking" man's friend.
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