Vavle spring question

FX4S · Dec 11, 2013

I'm looking at a parts list produced by Land Rover, and notice that in the diagram (and more importantly, in my cylinder head), I have 2 springs per valve - that is a smaller diameter spring sitting inside a larger spring. The part number in the LR parts list is ERR4640.
When I check ANY website selling LR parts, there is only ONE spring shown - is this a superceded item?

Blackburn · Dec 11, 2013

Sherpa manual shows two springs but I do not have parts manual .
LDV might be able to advise if they are still around.
What prefix is your engine mine was 15J?

FX4S · Dec 11, 2013

Blackburn said:
Sherpa manual shows two springs but I do not have parts manual .
LDV might be able to advise if they are still around.
What prefix is your engine mine was 15J?

Tricky question - my engine is a Defender 110, but it's in a London Taxi and the engine number starts with 21J, not the usual 12J.
One kind lady I called at LRDirect says that her microfiche shows a note that it was an "upgrade/change", but she didn't come across as being very experienced.

Just hoping someone on here can just confirm that the new one spring per valve aint gonna cause me problems.

samc88 · Dec 11, 2013

Mine only had one spring per valve

Mine is a very early 2.5 though (before they fitted the crankcase breather) so maybe 2 springs are a later addition?

zeaphod · Dec 12, 2013

Both the defender and series parts books show a two piece spring.
That's also what has been fitted to both early and late series heads I have stripped lately.
Watch out if you are trying to replace valves and collets too - earlier valves, collets and spring cups are different. Later types have three grooves at the top of the valves and matching collets. These collets are smaller, and need a different spring cup.

Blackburn · Dec 12, 2013

parts catalogue shows two springs but only one number and this appears to fit a lot of engines see link
ERR4640 VALVE SPRING | shop | www.lrseries.com
Reputable supplier!

zeaphod · Dec 18, 2013

zeaphod said:
Both the defender and series parts books show a two piece spring.
That's also what has been fitted to both early and late series heads I have stripped lately.
Watch out if you are trying to replace valves and collets too - earlier valves, collets and spring cups are different. Later types have three grooves at the top of the valves and matching collets. These collets are smaller, and need a different spring cup.

As the dog returneth to it's vomit.....
Bought springs from two different suppliers - both sent a single (thicker) spring as replacement. Hope it's OK, cause I'm planning to have it running by the weekend!

FX4S · Dec 18, 2013

Blackburn said:
parts catalogue shows two springs but only one number and this appears to fit a lot of engines see link
ERR4640 VALVE SPRING | shop | www.lrseries.com
Reputable supplier!

but that part number shows only one spring when I search - maybe they redesigned it into one spring?

jamesmartin · Dec 18, 2013

later single spring is used to replace earlier double ,both types work ok

FX4S · Dec 18, 2013

and good luck for the weekend Zeaphod! take plenty of pictures.

FX4S · Dec 18, 2013

jamesmartin said:
later single spring is used to replace earlier double ,both types work ok

Spendid - thanks jamesmartin

Vavle spring question

FX4S

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Blackburn

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samc88

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zeaphod

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Blackburn

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zeaphod

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FX4S

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jamesmartin

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