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MG TD TF 1500 - Inlet Valve Extra Spring

Hi

Stripping the head on my early XPAG engine, when I pulled out the inlet valve there was an extra spring arrangement below the valve guide. Any ideas? I don't see it on any diagrams or listed on any suppliers websites.

Thanks

Barry

B Bridgens

Was this on all of the inlet valves ?? so it sat in the backside of the valve??

steve
SPW Wincze

Hi Steve

On all the inlet valves, sat on the valve head as in the picture.
The topside was normal two springs etc.

Barry
B Bridgens

The only time I have seen a spring there is when it was forgotten after using it to lift the valve off the seat while grinding in.(pre-war motorcycle engine with screwdriver slot to grind in)
Ray TF 2884
Ray Lee

Maybe to add a dampening effect or to change the valve float frequency ?
Laurent.
LC Laurent31

It may be an ill-advised device to retain an oil seal on the intake valve stem?
J Stone

Yeah
looks like someone's attempt to fit some sort of valve stem seal on the bottom side
Put him in the bin--he isn't your friend and also it would be fighting against the strength of the valve springs weakening their effectiveness
William Revit

Hi

Thanks for all your comments, I will be putting them all in the bin. William I think you are right there was a hint of an old seal on two of the springs.

thanks

Barry
B Bridgens

This thread was discussed between 21/10/2018 and 22/10/2018

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