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About stevefh

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  • Birthday 20/12/1948

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  • Name
    Steve Harris
  • Car
    lotus esprit S4 1993.5
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  1. Hi Andy ,hope this is what you want.When I get round to it I will post all I have done on my running rich problem.PM me when you have time.Steve
  2. Hi thanks for replies, the cat is about 5 years old from SJ , I removed and kept the original simply because of its age.The over fuelling is now very bad. I am toying with the idea of putting air up the tailpipe to try to identify where the leaks are and how bad they are to plug them with gun gum as a temporary fix to drive the 20 miles or as I said to disconnect the o2 sensor or both.Will a hair dryer work?Will a vacuum cleaner in reverse work or else I will get under the S4 when the engine is running when cold.None of these remedies has appeal in the wind and rain! Has anyone tried reverse a
  3. Hi all, I have not looked yet (rain)but I am fairly sure I have a large air leak in the exhaust manifold/gaskets which is causing the S4 to run very rich and I am reluctant to drive it and damage the catalytic converter. I have done my best to solve this problem from other sources,( except the ecu) as I have long suspected a minor leak. I need to drive it about 20 miles to a friend’s garage and engine crane, engine out new exhaust.My question is, will my S4 drive ,without problems ,with the o2 sensor disconnected on default ‘open loop’ settings so the large amount of excess fuel does n
  4. Hi all, in order to make sure I have the best spark possible I have removed the coil set up, cleaned /sandpapered the chassis plate and coil back plate to make sure of good electrical contact. Using ring connectors I have grounded the coil backplate direct to the battery and also grounded the two lower 5.5mm bolts using a wire loop and then direct to the battery. My questions: on the Oe and MSD coils the 5.5mm bolt holes have a lot of clearance.Why is this? I presume the brass(?) ferrule is part of the coil circuit and should have a good ground between it and the bolt which appears to be
  5. Thanks, I managed to find the Delphi references 12065875/76/77/78 but yet to find a supplier showing stock.Thanks again
  6. Hi all,does anyone know the make etc. of the ecu connectors of an 1993.5 Esprit S4 part of the engine management harness.
  7. Hi all, anyone know the size of the o ring that is used on the fuel pipes to plenum nozzle connections, it’s the same part no. A082L6169F as either side of the fuel filter? I don’t want to pull them off to measure them in case I have to reuse them.
  8. Hi all, has anyone used any of these? Are these dimensions correct? How do they compare to the Oe? Suggest others. Bosch(Hella Hengst) H229WK Height 114mm or 108? O/D 55mm. M16x1.5 Fram G 3727. 114. 55. ? Crosland F30279. 114. 55. ? Borg and Beck BFF8116. 112. 55. M16x1.5 What Do SJ ,Pnm, others supply?
  9. Hi Freek, thanks for the info.Does anyone know the Bosch alternative for the secondary injector (or other).Do they require adjustments?
  10. Hi, tested resistance of Oe secondary injectors, both about 13 ohms not 16. Used my gizmo to clean them.First cleaned well to give good even spray.The other initially cleaned to give a good spray pattern but on about the 6th sequence I built up the pressure and the solenoid valve leaked and sporadically leaked after that.So beware. My engine is stock. I have just put in RC PL2-0370 primaries.2.5ohms compared Oe 2ohms and seemed the same size . I am thinking of using RC SL4-0205 as the replacement. Rochester(GM)are 190cc,128Hz,16ohm, RC are 205cc,12.5ohm,Hz? Has anyone used
  11. Hi, SL9-0270 is a saturated type but if it is ok for your set up I don’t know, the nearest to stock I can see is SL4-0205 ,205cc,12.5 ohms compared 190cc , 128 Hz,16 ohms of stock. WC engineering supply an RC version but no one answered my q if it was the 205 or if it was modified or a different version.
  12. Travis,Thanks for all the info , I was worried about the plastic.
  13. Hi Travis, for what reason should carb cleaner not be used as this was on YouTube?Also the small bracket holding in the secondary injectors in your photo is the opposite way up to how I found mine and also appears to be in the parts diagram and you don’t seem to have the ties that act as spacers.
  14. Wouldn’t it make sense to reverse flush first unlike most videos? I ask about the filter ( also other parts made of plastics) in case immersion for a length of time in the Holts carb cleaner might cause damage ,as it says on the can “avoid using on wires and connectors “
  15. Thanks Andy, what is the injector filter made of?
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