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Smithy111 - The Lotus Forums Jump to content


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About Smithy111

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  • Name
    Chris Smith
  • Car
    S3 Turbo Esprit + Volvo V40
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  1. Plugs out and holes covered with a cloth, fuel pump and ignition off and turn over on the starter to get some oil circulation/pressure would be a good starting point id think. Maybe a drop of oil down each plug hole.
  2. I was thinking of original lotus hoses with the fittings already on that sj sell? Im taking about the suction line from evaporator back to compressor. So the hose passes through the sill and strait into the cabin and is only under the carpet? My carpets been replaced so i can probably get it back up.
  3. The suction hose had a massive hole in it so as a trial to check for other leaks I cut the hose and rejoined it and a load of thick yellow oil came out I assume that’s the compressor oil as it’s been fitted inverted and probably run out of the unit and into the low point on the hose? How difficult is it to replace the suction line? Was thinking I could replace one hose at a time and that ones in the worse visual condition
  4. Im going to leak test this myself with some of the cheap hydrocarbon gas and uv dye but how much and what type of oil should i use?
  5. I’d hope the evaporator is fine as it’s protected in the hvac unit and that’s one thing I won’t be doing if that’s failed! Would the shaft seal be leaking if the clutch has never been engaged though? I’m going to have to pull the compressor out anyway as it’s been fitted upside down
  6. Ok so theres a better chance of the condenser being intact and leak free on an older car like ours than newer ali units, i rekon its the hoses. Im tempted to just do this myself, gas it up to the correct pressure with some cheap refrigerant as above put the correct type and amount of oil in? and dye and run the system and then look for the leak with uv light (my garage is pitch black as no windows) anyone see any problems with this method?
  7. Wow im amazed thats standard even for Lotus there must have been a better way to do it?! I was going to chip it all off as i think it covered the expansion valve as well by the look of it! Guess it could still be leaking under all that crap. The hoses are also in a pretty bad way so i think its most likely the condenser and or hoses. Not sure i care enough about air con to drop the rad pack and replace the very expensive condenser unless theres an alternative fit item?
  8. Thats a pretty big leak! think ill have to get mine diagnosed and rule out as much as i can to start with, im guessing the condenser isnt going to be in great shape after 35 years! I did however find this bit of bodging under the dash which looks more than a little suspect!
  9. perhaps but where or who do I use, I won’t just pick someone out without a recommendation also it’s not the easiest car/system and I’m sure some won’t want to try
  10. I’m thinking of recharging the system myself as it is with fresh ether oil, uv dye and this in an effort to find the leak by running the system. I’ve checked as much of the hoses, connections and condenser that are accessible and can’t find anything using the bubbles method. if I can find and repair it then have the system evacuated and recharged correctly. Maybe with a sealant as well? opinions on this? I really need to fix this as it’s bugged the hell out of me since I bought the car
  11. Further to this topic, the high and low side ports are very inaccessible on the back of the compressor (compressor upside down doesn't help) can i remove the quick connect conversion bayonet fittings and screw the diagnostic hoses directly to the compressor as a permanent thing and then move the ports to the rear of the engine bay where they would easily accessed and just p clip the hoses? i cant see any reason why not except that you would waste a very small amount of extra refrigerant that would fill the hose extensions?
  12. I’m going to try with soapy water spray on the joints and hoses first then if nothing else get some dye and air pressure in. If its tight after that then I’ll take it to be vacuumed out, replace the receiver drier and re-gas with the good stuff. ‘Taps nose’
  13. Good point, maybe i need to put pressure in the high side as well, its bloody awkward to get to the ports on the back of the compressor when its been fitted upside down! Will get a dye kit as well and see if anything shows up. The whole system is original except the compressor so was expecting more leakage than im getting. Does anyone know the acceptable pressure loss and over what time? I assume there is some sort of standardised specification?
  14. Traced a major leak in my a/c system to a holed low side hose and have cut and repaired the section. I know it’s not strictly the correct way to test a system but I’ve managed to push 45psi into the system via the low side port and it’s only lost 5psi in an hour. Is that good?
  15. £30k for an n/a!? I wouldnt even consider that. As above you can get a very well sorted Turbo for that money or less! Should be no more than £20k imo, £25k for a mint one.
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