Property talk:P1078

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valvetrain configuration
configuration of the valvetrain utilized by this engine

Description	configuration of the valvetrain utilized by the engine - poppet valve (Q1127794)
Represents	poppet valve (Q1127794)
Data type	Item
Template parameter	w:en:Template:pistonspecs : valvetrain
Domain	According to this template: engines - reciprocating engine (Q630010) According to statements in the property: reciprocating engine (Q630010) When possible, data should only be stored as statements
Allowed values	types of poppet valve (Q1127794) (latest list) - see Category:Engine valvetrain configurations (Q8414593) (note: this should be moved to the property statements)
Example	Gnome-Rhône Mistral Major (Q902691) → overhead valve (Q267714) Tohatsu M3.5A (Q104236492)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P1078 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 257 Main statement 256 99.6% of uses Qualifier 1 0.4% of uses
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Type “reciprocating engine (Q630010)”: item must contain property “subclass of (P279)” with classes “reciprocating engine (Q630010)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1078#Type Q630010, SPARQL

Value type “poppet valve (Q1127794)”: This property should use items as value that contain property “subclass of (P279)”. On these, the value for subclass of (P279) should be an item that uses subclass of (P279) with value poppet valve (Q1127794) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1078#Value type Q1127794, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P1078#Scope, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1078#Entity types