Ca20??
 

I have accquired myself a manual MK2 in white and as I was stripping it today for an engine rebuild I came across something I found rather odd.

On the exhaust side of the head just above the manifold was another 4 spark plugs that were not connected to the distributor.
After consulting the book I found that the only engine to use 8 plugs was the CA20.

It it a normal thing to put this head on a CA18? or would it have to have the CA20 block?

This has rather confused me cos it has the turbo plate on the rocker top and a T2 strapped to the side, the turbo is also a brand spanker.

Cant get the engine out till tueday to have a closer look at it but it has struck me as rather odd.

Dave

pinxtonpete has an 1809cc with 8 spark head.

no, the CA18et from europe had 8 sparks for emission reasons, there is a guy in france that has one (Alundra) as far as im aware we didnt have it on the uk spec s12.

I was looking in the nissan service jobbie

Its not running on all 8 plugs though as it has an 18et dizzy fitted

i had an 8 plug head on one of my s12s. Mine was replaced by nissan in the late 80;s Its probably all they could get in on order. As previously said. It was done for emmissions in other countries.
The reliant engines may of had them as std as well????



Its not a ca20. Its just an immigrant ca18et

So is it better to run it on all 8 plugs or can I do it with just the 4 and be ok?

its fine on 4 plugs.

Thats ok then at least I dont have to start searching round for a stanza/some other oddball distributor

all export scimitars had them, but because reliant kept going bust often the UK cars got them too if theyd run out of 4 sparkers lol. when the finally went bust properley, one of the dealers bought all the crated engines and boxes in the bankruptcy sale, some were 4 and some were 8 plug. i bought a couple 'back in the day' one of which wasa twin spark motor. no difference in power, just to try and clean up the ETs ropey missions

all scimitar 8 plug ETs were CA18s not 20s too