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Valve Cage


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#1 Guest__*

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Posted 28 December 2002 - 07:06 AM

I was reading through a book entitled "Krausz's ABC of Motoring" (1906), where the term "valve cage" (of the engine) was used. What is a valve cage?

#2 1937hd45

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Posted 28 December 2002 - 07:53 AM

Good to know that you're into the older cars! A valve cage was an early design that was a removeable unit, valve, spring and seat. Try to picture a BIG sparkplug about two inches wide at the threaded portion, the valve would be in the same location as the porcelain insulator, with a spring and keeper. This unit could be removed to grind the valve seat in an early T head engine. If you can find a copy of Dykes Automobile Encyclopedia there are some great illustrations of this valve design. This design is still used in some diesel engines today.

#3 Guest__*

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Posted 29 December 2002 - 10:39 PM

Thank you for your response!

This morning I located the only A.L.Dyke publication I have, The Diseases and Cures of a Gasoline Automobile and How to Cure Them (Revised edition-1908), which does not have the illustrations you mention. However, your description is very complete and understandable.

Thanks again.


























































#4 Guest__*

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Posted 02 January 2003 - 09:36 PM

The later (WW-I era) Dykes Encyclopedias mention them.

I think Buicks used caged valves, pre-'20s.

Some early motorcycle engines also employed this technology.

They had pretty much disappeared from passenger cars by 1925 or so.



De Soto Frank

#5 D Binger

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Posted 03 January 2003 - 12:50 AM

I own a 14 and a 22 Buick and both have cage valves. They work fine.

Dan

#6 Mrbuick714

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Posted 09 January 2003 - 01:48 AM

My 1923 Buick had caged valves.You could take a large spanner and out came valve,seat spring and all. You could grind the valves without draining the coolant.Neat!




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