The centre caps were bashed and broken to the point that they wouldnt even stay on the wheels so i binned em. I'll just get some more from a breakers yard or somewhere i guess.
It was a bit bloody chilly this morning, as i found whilst standing outside my car at 7am because all the doors were frozen shut and i couldnt get in it, AGAIN!
My little roadster also likes to idle on 3 cylinders for some stupid reason when its fairly cold, it usually has to be -3 or below before it does it, but only on idle, rev it, goes up onto 4, drop it back to tickover, on 4, engine bogs, nearly cuts out, picks up, on 3 again, plus it makes a strange whirring squeaky hummy kind of sound too if you rev it while its cold.
It clears once the engine is up to temp tho so not so bad, just annoying, and a little concerning, as apparently these mazda/eunos engines suffer from crank problems, so i hope it isnt that, although i would thing i would have some serious knocking if that was the case.
What year car is it? IIRC only the early 90's cars had crankproblems. Shouldn't cause any knocking though. Check plugs and wires and replace if necessary. Stock miata plugwires are shit.
She (i decided she is female ) is a crystal white japanese imported 1992 S model, with the higher output 120bhp 1.6 engine (most british ones are 89hp) plus i get power steering, momo steering wheel, air con, and (did have) super light BBS wheels.
The oil hadn't been changed for about 18 months when i got it so it has had a full service about 2 months ago and is now lubed with the finest castrol GTX magnatec, so oil is all OK, plus i flushed the (brown) water system fully and replaced the coolant with the luminous pink anti freeze, plus i gave her new spark plugs while i was at it.
Here is what it does in the cold, i apologise in advance for saying c--t when it cut out....
you should be fine, crank-wise then. The 89-93 1.6 had a power output of 116hp. Later on, the 1.6 made 90hp, but this was from 96 and up. The 1.8 starting in 94 produced 131hp until the Mk2 came out in 98 or 99.
The squeaking noise is a little concerning, but i don't think it's anything internal. Sounds to me like it's either the Auxiliary belt squeaking, or an actual Auxiliary part squeaking due to the cold, like the Alternator for example.
Theres multiple things that could be causing the car to misfire due to the cold, but it's very hard to diagnose a car over a Forum! If i had to take a guess though, i think it would be something to do with the HT Leads and/or the Distributor Cap.
In my defence it was cheap, although as expected its made no difference.
Also got a Sealey camber thing so will be seeing if I can fix my car tomorrow, if so then all I will need is a new set of tyres then everything is finally done...