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D10A cylinder head
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3shedman
Ashford Kent
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July 17, 2019 - 7:02 am
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I have a D10A engine which I am restoring but have a query relating to the cylinder head. It is fitted with a  unit without a squish band and has a short reach spark plug socket, which Appears to be similar to those fitted on D7 engines. The piston is slightly domed and has the number 90-1517.

Presuming this is not a normal setup. Has it been done to increase compression or simply the wrong head and should be changed in case of damage that may be caused ?

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Piquet
West Norfolk
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July 17, 2019 - 10:13 pm
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I would guess you have the wrong head, see here

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but, pay particular attention to the piston, if the top is flat then you could have a D7 barrel, piston & head and apart from a reduction in performance you should have no problem. If it is a domed piston there is a possibility it could contact the head due to the lack of a squish band and may cause damage.

I'm not a complete idiot ............................................ some parts are missing.

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3shedman
Ashford Kent
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July 17, 2019 - 11:43 pm
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Thanks for your help. It’s the wrong head on a D10 barrel.

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Peterg
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July 18, 2019 - 10:47 am
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Noting though that the last D7s had the domed pistion

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