Mk2 1.8 rs into mk1 1.8

[scallan]

Have a mk1 1.8 here and the headgasket is on the way out. Is it much hardship putting in a mk2 1.8 from rs into it as have 1 sitting in the garage??

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[MX5Spares]

Hi James, I have been told its easy enough.Fit the mk1 wiring and fuel lines /injector rail etc as mk2 is different.Also put your own CAS sensor in to mk2 head.If I remember correctly I think the manifolds are higher up on the mk2 head for better flow etc so thet might leave your front ex pipe needing extension??Also the mk2 has 4 into 2 into 1 ex manifold and mk1 is usually 4 in to 1 so you will have to weld in section etc.Bottom end is same really.Both are still BP series engines anyway.

[scallan]

Thanks robert i jumped the gun a small bit there was mayonaise on the inside of the oil cap but musta been just condensation from being parked up. Cleaned it changed the oil and its perfect. Was parked up for 6 months. Good to know anyway

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[sidewaysreilly]

Ive done it. Its an easy swap and a much better engine.