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About Caligarinet

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  1. Caligarinet

    K Series cooling issues

    I’ve got a S2 K Series with 98k on the clock and I had similar issues of running cold. I assumed thermostat was stuck open and ended up taking it to Gav at Unit 4. Gav kindly replaced the thermostat, and examined the thermostat after removal, no sign of it being stuck. However he did suggest that the spring keeping it closed wasn’t holding much pressure and the water pump could just push it open. Swapped for an 88 degree thermostat and temp has been rock solid since. Hopefully not related to HGF....this car is costing me enough at the moment as the exhaust has just fallen off!!
  2. Caligarinet

    S2 K Series - Bleed Screw

    I’d say M5x1.0x10 as an estimate. trying to find a tapered head M5 bolt and an M5 copper washer was proving difficult, so glad she found the original
  3. Caligarinet

    S2 K Series - Bleed Screw

    Found it!! Well rather my girlfriend found it....result.
  4. Caligarinet

    S2 K Series - Bleed Screw

    Cheers mate, much appreciated.
  5. Caligarinet

    S2 K Series - Bleed Screw

    Anyone know what size the engine side coolant bleed screw is? (S2 K Series) or where to source one? In a rush this morning, had to bleed some air out of the system and lost the bolt!! managed to find a short capped head bolt to block the hole, but don’t want to torque up in case it’s too long and I strip the threads. Thanks Paul
  6. Caligarinet

    New Member, coolant loss

    So I’ve just bought a replacement bung....oh well, doh. Good info as always. 👍🏻
  7. Caligarinet

    New Member, coolant loss

    Thanks, will give this a try. 👍🏻
  8. Caligarinet

    New Member, coolant loss

    I had read that the S2 only used one sensor, but mine definitely has a black and a blue one fitted. Im fully preparing for skinned knuckles and lots of swearing to change this thermostat. 😬
  9. Caligarinet

    New Member, coolant loss

    I’m guessing the reading from the OBDII socket will be brown sensor (ECU)...this matches the Stack Dash read out. Very little heat coming from heater. All good info, thanks. Definitely need to check my grounds anyway. Once I’ve worked out how to stop the alarm going off, every time I disconnect the terminal...
  10. Caligarinet

    New Member, coolant loss

    Thanks for info, appreciated. I’ll give it a go next week when I get some spare time.
  11. Caligarinet

    New Member, coolant loss

    Just an update on this, should anyone ever have similar issues. Coolant level, no issue at all now, several long trips and no loss. Car was running rich, as shown by soot deposits on back of car and getting 18mpg even on the motorway. Changed coils, plugs, and ECU coolant temperature sensor. Now getting an average of 32 mpg, but Stack is indicating that it’s struggling to get up to temp, sitting around 70 degrees unless in traffic or stationary. Ordered new Stack temperature Sensor and new thermostat....so will have to see if it’s the temp reading or the temp that’s the issue. Changing the thermostat looks kind of tricky....
  12. Caligarinet

    New Member, coolant loss

    Thanks for welcome, guys. Coolant level holding steady so far after some spirited runs, temperature steady.
  13. Caligarinet

    New Member, coolant loss

    Yup, hope so. Taken her out for a half hour spirited run, no coolant loss and still nice and pink. Just have to keep an eye on it for next week or so.
  14. Caligarinet

    New Member, coolant loss

    Thanks for welcome, mate. Flushed coolant, replaced with OAT, replaced cap. Seems to holding its level for now, but not taken it for a decent run yet. Think next step is sniffer test, if problem persists.
  15. Caligarinet

    New Member, coolant loss

    Hi, 6 years after selling my S1 and regretting it ever since, I’ve managed to pick up an early S2, with 96k on the clock. So with that kind of mileage, kind of expect a few issues. First issue is it seems to be losing coolant, and getting a froth in the expansion tank (as though it’s got fairy liquid in there, no emulsion). Was initially a hissing from cap, so replaced this. No sign of coolant loss anywhere Exhaust gas to coolant compromise? no issue with overheating as yet. Any recommendations of who could look over the car? Anyone who could pressure test the coolant system, or test for exhaust gases? Seen mention of Gav in Burton, tried emailing, is he still in business? If going down the line of HGF...repair or just swap the engine out. Swapped the engine on the S1 without too much difficulty, certainly easier than doing the head gasket. Based in Stafford. Thanks in advance Paul W

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