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Manual Transmission Fluid Change - Photos???
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#21
 
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Re: Manual Transmission Fluid Change - Photos??? -
11-15-2008
, 09:09 AM
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"Tegger" <invalid (AT) invalid (DOT) inv> wrote But what about the fill plug washer? Part no. 94109-20000 (20 mm) for my 91 Civic. |
Well, I just called my parts guy and gave him those two numbers
(94109-20000 and 94109-14000). He immediately recognized both numbers and
knew they were for the oil pan and transmission. He even has them in stock.
Apparently several models use those parts, not just the Civic and Integra.
I do remember now that getting a /drain/ bolt washer was never a problem,
just the one for the /fill/ bolt.
It's been at least ten years since I last asked him for the fill bolt
washer, and he no longer remembers our previous difficulty in finding it.
I'm going to pick up a few of each next time I'm down there.
Thanks for your help.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#22
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We disagree. The sealing material to use (springy or not blah blah) depends on the application. with respect elle, copper or aluminum crush washers are not springy. |
generally speaking, some sealing materials are in fact
rubber or similar and so are springy. Other sealing
materials work by plastic deformation. Which is used
depends.
#23
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On Sat, 15 Nov 2008 07:13:31 -0700, Elle wrote: "jim beam" <spamvortex (AT) bad (DOT) example.net> wrote Elle We disagree. The sealing material to use (springy or not blah blah) depends on the application. with respect elle, copper or aluminum crush washers are not springy. I think we are talking past each other. I am saying that, generally speaking, some sealing materials are in fact rubber or similar and so are springy. Other sealing materials work by plastic deformation. Which is used depends. it's hard to reliably use just a rubber seal under a screw because it's difficult to torque sufficiently to reliably retain the screw. [ever had to re-torque a leaky oil pan? usually, /all/ the screws are loose.] additionally, for drain plugs, as the shear of twisting commences as the two sealing surfaces contact, it can tear. thus polymers are used for gaskets, and copper or aluminum alloys are used drain plugs. |
Toyota's OEM gasket for oil pan drain plugs is non-metallic. It's some sort
of hard black fibrous material. Works quite well.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#24
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On Sat, 15 Nov 2008 15:26:37 +0000, Tegger wrote: Toyota's OEM gasket for oil pan drain plugs is non-metallic. It's some sort of hard black fibrous material. Works quite well. it uses the fiber reinforcing to address tearing. and being polymeric, it can't take the same thermal load - academic here though. |
What does thermal load matter? The gasket works just fine sealing against
hot oil in spite of being non-metallic, which was my only point.
A gasket for a fastener does not have to be metallic to be effective and
allow specified torque.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#25
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it's hard to reliably use just a rubber seal under a screw because it's difficult to torque sufficiently to reliably retain the screw. |
o-rings, washers, etc.
#26
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On Sat, 15 Nov 2008 15:46:04 +0000, Tegger wrote: jim beam <spamvortex (AT) bad (DOT) example.net> wrote in news  aadnXvYnvgpcIPUnZ2dnUVZ_uqdnZ2d (AT) speakeasy (DOT) net:On Sat, 15 Nov 2008 15:26:37 +0000, Tegger wrote: Toyota's OEM gasket for oil pan drain plugs is non-metallic. It's some sort of hard black fibrous material. Works quite well. it uses the fiber reinforcing to address tearing. and being polymeric, it can't take the same thermal load - academic here though. What does thermal load matter? The gasket works just fine sealing against hot oil in spite of being non-metallic, which was my only point. A gasket for a fastener does not have to be metallic to be effective and allow specified torque. to be utterly pedantic, a metal crush washer isn't going to soften or creep at the temperatures a polymeric one will. and thus it will maintain torque. academic? probably. relevant? probably not. |
So then how is it that the Toyota fiber washer appears to maintain torque
sufficient to prevent leaks?
I have to give a fiber-gasketed bolt just as much of a tug to loosen it
that I must apply to a Honda metal-gasketed bolt, so clearly the fiber
gasket is not failing over time.
If you mean a fiber washer would not be able to withstand temperatures of,
say, 1000 degrees while a metal one will, that may well be true. Except
that oil never gets any hotter than about 220, so metal's advantage there
is moot.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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