m20 engine serial number

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schnaarf
E30 Zone Camper
E30 Zone Camper
Posts: 1076
Joined: Sun Jun 24, 2007 11:00 pm

Post Wed Oct 05, 2016 5:18 pm

Recently bought an e30 off someone on here. They said it had 140k odd whereas in fact it has nearer 300k.

It runs quite well so I'm interested to know whether its the original engine. Where can find the engine identification / serial number? Anyone know? Saw a reference to be being on the block under the inlet manifold but can't see it.

TIA
Speedtouch
Old Skooler
Old Skooler
Posts: 14100
Joined: Tue Feb 14, 2006 11:00 pm
Location: Canterbury

Post Wed Oct 05, 2016 5:53 pm

On a machined flat on RHS of the inlet side, just above the block:sump interface.

You may need to wire brush/Jenolite it and use a bright torch to see. It should start 25 6E for high compression, or 25 6K for low compression (assuming it's an M20B25). Serial number is immediately below the engine code.
///M aurice
ECU Upgrade EPROM Chips, £40 posted within the UK. Note these are not Zone chips.
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