1.3SR Engine puzzle

[HarryNotts]

I'm going to fit the 1.3 engine from a 1985 SR into my 1988 1.2 Merit. On the back of the SR cylinder block,just by the starter motor,there is a screw in fitting with two outlets. My question is....what's it for?

[mk1nova_rich]

Looks like the oil pressure sender to me, assuming thats where they are on a small block 8v

[Royston]

There isn't one of those on my 1985 SR, oil pressure sender is on the oil pump,

[meritlover]

Vacuum temperature switch.

[HarryNotts]

Thanks people for your help.Meritlover,I've had a look at the SR engine bay that I've taken the engine from and I think you are right! Two small (approx3mm) plastic pipes lead up onto the nearside inner wing behind the headlight and go into a connector block. Can I just ignore it and seal up the outlet hole in the engine block fitting? What does the vacuum temperature switch do?

[meritlover]

I think it was used to advance the timing when the engine was cold. You should get away with just running the vacuum hose straight between the manifold and the distributor.

[HarryNotts]

OK, that's good. Thank's for that.