The-t-bar
the-t-bar.com › forum › mgf & mg tf community forums › mgf/tf pitstop › jiggle valve design feature with the prt
MGF & MG TF Owners Forum - Jiggle Valve design feature with the PRT - The-T-Bar
December 31, 2024 - The floating valve giggle system located at the engine close to the thermostat is intended to pass any entrained air to the expansion tank. The ball then floats in the coolant before sealing with minimal flow (if any) passing through it.
MG-Rover
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Jiggle Valve - TF Cooling System | MG-Rover.org Forums
October 4, 2010 - The jiggle valve allows air to bleed past it, but then shuts off the pipe when water tries to flow through it.
Jiggle valve ??? mgf
does the jiggle valve in the vvc mgf have to be in a cage or does it run free and can u run it with out it in? Any pic's to show how it works would help More on mg-rover.org
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May 22, 2010Jiggle valve ??? mgf - MG-Rover.org Forums
does the jiggle valve in the vvc mgf have to be in a cage or does it run free and can u run it with out it in? Any pic's to show how it works would More on forums.mg-rover.org
Jiggle Valve??
So, after an explotion and the expantion cap goes south it turns out that the cause was a Jiggle Valve that broke off and it was full of lime. So, the Jiggle Valve for some reason reason leads most of the water via the engine (from the radiator) and some via a strange little valve up to the... More on forums.mg-rover.org
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February 23, 2011Jiggle Valve - TF Cooling System - MG-Rover.org Forums
Hi All, What does the 'Jiggle Valve' do? The heater matrix on my car seems to be running very cool at low revs 80-1200 (tick Over). If the car is rev'd More on forums.mg-rover.org
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MG-Rover
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Jiggle valve ??? mgf | MG-Rover.org Forums
May 22, 2010 - As above. The jiggle valves are there to allow the air to escape during filling and then shut off the flow of coolant when the air has gone. They prevent the header tank from becoming part of the cooling circuit during warm up and so improve ...
MG-Rover.org Forums
forums.mg-rover.org › home › model specific forums › mgf and mgtf
Jiggle Valve?? | MG-Rover.org Forums
February 23, 2011 - It's actually a stainless steel ball trapped in a cage through which coolant returns to the block. As water is incompressible, it lifts the ball and stops flow through the small bore hose to the header tank.
Mg-rover
forums.mg-rover.org › mgf-mgtf-12 › jiggle-valve-tf-cooling-system-384799
Jiggle Valve - TF Cooling System - MG-Rover.org Forums
Hi All, What does the 'Jiggle Valve' do? The heater matrix on my car seems to be running very cool at low revs 80-1200 (tick Over). If the car is rev'd
The-t-bar
the-t-bar.com › component › community › 12268-richard › profile
MGF & MG TF Owners Forum - Delbourt's profile
The floating valve giggle system located at the engine close to the thermostat is intended to pass any entrained air to the expansion tank. The ball then floats in the coolant before sealing with minimal flow (if any) passing through it.
MG-Rover
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Jiggle valve clean or remove ? | MG-Rover.org Forums
Flow to the head can be dramatically ... using a burring tool on a minidrill. The jiggle valves are there to allow trapped gases to vent back to the header tank....
MG-Rover
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Jiggle valve removal | MG-Rover.org Forums
November 19, 2020 - It is designed to allow gases trapped in the top of the head to vent safely to the expansion tank. Removing it will simply allow coolant to constantly discharge from the head to the expansion tank.
Ultimatemg
mgf.ultimatemg.com › group2 › coolant › index.htm
The Cooling System
"Any excess of coolant created by heat expansion is returned to the expansion tank via the bleed line. A jiggle valve fitted at the start of the bleed line, prevents pressure build-up in the expansion tank by regulating the amount of returning coolant.
The-t-bar
the-t-bar.com › forum › mgf & mg tf community forums › mgf/tf pitstop › more coolant woes, will it ever end?
MGF & MG TF Owners Forum - More coolant woes, will it ever end? - The-T-Bar
August 21, 2014 - This auto bleed valve (or jiggle valve) is situated in the inlet manifold flange which consists of an orifice with a nylon ball, the flow is restricted at this point by the ball which allows a small amount of coolant to flow up to the expansion tank.
Mg-rover
forums.mg-rover.org › mgf-mgtf-12 › thermostat-jiggle-valve-nightmare-583633
Thermostat and jiggle valve nightmare - MG-Rover.org Forums
This serves to seal the outlet to stop too much coolant returning to the expansion tank but allow air to pass through. Mine was covered in greasy gunk and was sticking so it needed cleaning. On reassembly, the ball now rattles around in the housing quite happily.
MG-Rover
mg-rover.org › home › forums › model specific forums › mgf and mgtf
Thermostat and jiggle valve nightmare | MG-Rover.org Forums
This serves to seal the outlet to stop too much coolant returning to the expansion tank but allow air to pass through. Mine was covered in greasy gunk and was sticking so it needed cleaning.
MG-Rover
mg-rover.org › home › forums › model specific forums › mgf and mgtf
Strength of coolant flow into expansion tank | MG-Rover.org Forums
April 24, 2014 - ( the bypass pipe ) and also through ... the bypass pipe shares the flow with the radiator... the jiggle valves determine the flow into the header tank... to allow air to go upward ... the main connection .....
MG-Rover
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MGF Overheating Problems | Page 2 | MG-Rover.org Forums
June 16, 2023 - The jiggle valve prevents pressure building up in the tank by regulating the amount of returning coolant. I was thinking, how would anyone know if it was flowing all the time anyway, when we are sat driving.
Ultimatemg
mgf.ultimatemg.com › group2 › common_problems › HGF_pages › why_do_hgfs.htm
Why do head gasket failures occur?
December 31, 2014 - MGF Gallery on UltimateMG.com · Why do Head gaskets fail
Proboards
fregister.proboards.com › the mgf/tf register › technical › coolant header tank.
Coolant Header Tank. | The MGF/TF Register
Hi first post on this board and hoping someone can help me. My car, 99 mgf, suffered hgf recently and i carried out the repair work myself and have since had 500 trouble free miles with a seady