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Dave Hopwood

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Everything posted by Dave Hopwood

  1. Mice love to nest under the plenum and eat the wiring Happened to my v8 twice
  2. The Lotus ABS unit looks the same as the GM Vectra and some Fiat models if placed side by side , however , neither will work in the Esprit V8 or GT3 as the inside is totally different . Regards Dave
  3. Hmmm They cut bits off the porker and the ford but didn't touch the Lotus ? IMO they switched the car for a older X180 (hence the old OZ wheels ) later shown in the episode And I think (and hope) the V8 was preserved Dave
  4. I have a problem with the horn and it is actually the horn itself that requires replacement Could anyone please tell me where the horn is located on a post 98 V8 Thanks
  5. Hi Paul I used a old input shaft from a spare gearbox Cheers Dave
  6. Paul at those revs I don't even think the secondary pump has kicked in It could be the primary pump or the fuel pressure regulator I have a gauge you can fit on the Schrader valve and drive around doing various tests whilst looking at the pressure If you want to borrow it you are welcome BTW I replaced my pumps with the Walbro 370 When I removed the originals the motor carbon brushes on the primary were shot Regards Dave
  7. Hi Paul I did the same as you and tightened the bolts evenly I have a theory as to why a new clutch judders , might be wrong but here goes My old clutch had a weak clamp spring so I reckon the weakness acted as a form of damping upon take up When you fit a complete new clutch the clamp spring has more tension and may act more aggressively upon take up hence judder , and bearing in mind it is still un damped clutch Regards Dave
  8. There is a "stock" fault with the post 98 V8 gauge , it develops a huge dry joint on the metal pot that is soldered over the coil assembly . You would have to cut the back off and then after repairing glue it back on , I prefer to cut with a hot knife Regards Dave
  9. Same here chaps ,full new clutch fitted , new engine and gearbox mounts and it judders worst than ever . The thing about these V8 twin plate clutches is they are almost digital in operation either on or off and lets not forget there are no dampening springs
  10. Hi March Interesting , did yours have the markings "FTE and any digits" It's Delphi 23.81mm bore, I've tried sourcing a seal kit without success I'm sure it could be retrofitted with a part having the same mounting holes and a similar travel Cheers Dave
  11. Hi Does anyone have a cross reference for the post 98 clutch slave cylinder ? Thanks
  12. Only the base electronics are GM , the software is all Lotus designed specifically for the Esprit V8 . When you consider the two cars the corvette was normally aspirated where as the Esprit is turbocharged I think Johan and a few others have interrogated the mapping and would be better placed to answer your question All boost calibration is held in two eeproms ic19 and ic20 in the ECU , if you socket these two devices you will have a range of plug in options to go for Regards
  13. Hi Brian I considered replacing the stock ECU a few years ago . The area needing the most thought is the interface with the ABS controller , the standard fit Cobra alarm would need a bit of re thinking as well Generally , the Esprit V8 ECU is not a bad unit , it is after all a modified Corvette GM one I think Red race chips combined with high flow cats and K&N or Green air filters is still the best way to go Regards Dave
  14. Hi , Could anyone please tell me if it is possible to remove the air con compressor with the engine in place The system is already de-pressurised Cheers Dave
  15. It always seems to be the intermediate shaft pulley bolt that works loose (when I took the engine out the bolt could be removed with finger pressure only) When you consider the loads on the various pulley's it's the intermediate that is under the most stress as it has to drive 4 cams 32 valves at once , at least each camshaft only has to deal with it's own 8 valves a quarter of the intermediates load , and torqued up correctly there is the chance the cams can probably cope The shaft in now keyed as even doing the job myself I am the best part of £2500 out of pocket . Dave
  16. Anyone know what the hydraulic valve lifters are from Thanks
  17. Hi Gunter My engine is fitted with stock head bolts Anyway,the the engine is now out of the car now as I wanted to key the intermediate shaft pulley as I don't trust torque tightening and it's happened to too many owners that the bolt has worked loose trashing the engine(now including mine)
  18. Mine has just failed, the bolt worked loose and trashed the engine I can't believe Lotus didn't include a key in the design I won't dream of fitting the engine back without this mod Dave
  19. Hi Can anyone please tell me if it is possible to remove the cylinder heads with the engine in the car Thanks Dave
  20. Paul There are two one way valves on the V8 one at the front of the engine bay and one at the back near the throttle linkage If you remove them you should only be able to blow through them one way if intact Mine were both shot allowing boost to be vented and excess air to be consumed They are something to do with the breather system,oil mist over a period of time tends to make them stick open Regards Dave
  21. I've just re-built mine without any problems using the Helix friction disks,they are a direct replacement for the AP V8 They are available from ebay although the cheapest source is Mardi Gras Motorsport Ps For the sake of 70p don't re-use the star clips.My last re-builder did and that was the problem,one had broke allowing the pack to slid at an angle causing clutch slip Regards Dave
  22. Hi Alex A bit of turbo info for you Garratt part no TB2531 Turbine wheel inducer 41.5mm exducer 54mm Commpressor wheel inducer 38.3mm exducer 54mm CHRA part no 446335.0009 Regards Dave
  23. Hi John, I too have a 98 fitted with Saturns.For the last five years or so I have been running on Falkens and have been very pleased with them.I chose these because I use the car for work and wanted a tyre with good grip and a reasonable life expectancy Plus you don't have to re mortgage the house to buy a set around £500 to kit out a V8 Regards Dave
  24. If the car is running okay then in theory the cam timing is in tolerance,this is verified by the fitting of the smaller setting pins,normal belt change should not involve moving the cam belt pulleys,you could get into a real mess here as there are no key ways Other important things to check are the intermediate shaft bearing and the belt back idlers. The thing to bare in mind is does your car need any other work ie manifold studs/turbo recon/clutch/water oil hoses ect as I found it easier to "stock pile" all the jobs and pull out the engine and do the lot Regards Dave
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