Cumbustion volume of head gasket

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Art M
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Cumbustion volume of head gasket

Post by Art M » Sat Oct 29, 2022 9:14 pm

I measured the combustion volume of the head gasket. It is about 1.11 cu in. Is this taken into consideration whrn determining combustion ratio. The compressed gasket thickness measured .060 in

Art Mirtes


Dan McEachern
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Re: Cumbustion volume of head gasket

Post by Dan McEachern » Sun Oct 30, 2022 2:43 pm

Art- I agree, you number is pretty close to what I use.


Topic author
Art M
Posts: 964
Joined: Wed Jun 19, 2019 12:57 pm
First Name: Art
Last Name: Mirtes
* REQUIRED* Type and Year of Model Ts owned: 1923 Touring
Location: Huron, Ohio
Board Member Since: 2016

Re: Cumbustion volume of head gasket

Post by Art M » Sun Oct 30, 2022 3:28 pm

Dan.
I am wondering how or where you otained your number I used an ancient drafting instrument called a polar compensating planimeter. I don't know how accurate it is. But must be fairly accurate since our numbers are close
Thanks for responding

Art Mirtes


Harry Lillo
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Re: Cumbustion volume of head gasket

Post by Harry Lillo » Sun Oct 30, 2022 4:49 pm

Perhaps I looked at this too simplistically.
Is it not the volume of a cylinder
Diameter 3.75 in
Height 0.060
3.14 X (3.75 / 2) squared x 0.060
I get about 0.66 cubic inches
Harry


Dan McEachern
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Location: ALAMEDA,CA,USA

Re: Cumbustion volume of head gasket

Post by Dan McEachern » Sun Oct 30, 2022 5:59 pm

Harry-its the volume of a head gasket, which is not a cylinder, as you have to include the valve area as well. Art- its been several years, but I recall that my volume was an actual measured volume using a flat plate and a pipette.

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