catesprit

Can you tell me the trade mark and references of the ignition coil installed in you Esprit?

Thank you for your information. I will ask my mecanic to check wires

hello Atwell I want to check the sensors on the injection, ignition and all engine management. Do you know if there is a list somewhere? Hugues

I ask the mecanic to work on a pre-pump fuel filter as I saw on LT; we emptied the fuel tank and no visible debris found. I am going to look at the pressure and volume page on LD and ask the specialist. let you know. thanks for your help Hugues

Hi About boilling fuel, you are the second people to talk about it. The fan is an idea to test I am open to all solutions today. But why the fuel is boilling, the pumps are clean and working good (we check them also.) I am going to see how to adapt a fan or a "pump cooler" About the WUR it is one of the accessories i made renew by Bosch withe the frquency valve. Anyway, Iam going to check the number. As far I remember It has the right number. For the fuel distributors I am going to talk about it with my kjetronic specialist and ask to check. Does anyone know how to transfer this discussion in the engine section

Hi I am french and I am the owner since 20years of a 1986 HCI Lotus Esprit. I am writting (sorry if my english is not so good) here because I have a technical problem that never succeed to solve since 20 years! I came here some years ago and talk with some people but my car still have an engine problem The problem is the following : Everything is running well, everything is fine until the engine compartment is warm after 45 minutes to an hour's drive at normal speed. The engine starts well, the idling takes its turns well, the strong accelerations after 15 minutes of road are fantastics and the engine goes up well in the rpm in two words "happiness". But after 45mn / 1h the pleasure changes. Indeed, it becomes impossible to have strong accelerations. From 3000/3500 rpm, the engine bumps as if the injection was incorrectly adjusted and / or the ignition too. At this time, if I reduce the acceleration the engine works well again and takes its rpm without problem and can go, slowly, up to 7000rpm unless I press again very hard on the accelerator pedal and the problem comes back. I asked Lotus Spécialists, racing car spécialist, engine specialist and today a Kjetronic bosch injection french specialist wery well knowed in France for the Renault R5 Turbo car which get a Kjetronic injection. In France and in Europe there is no Bosch injection Lotus Esprit specialist. He tested everything (all ignition parts, all injection parts, all exhaust parts all modules and relays ..). We changed some parts as coil, sparls sparks hardness, rpm relay, overspeed module, ignition amplifier, wastegate membran, He went so far as to install a K jetronic module from a porsche 924 turbo to eliminate the electronic parts to find out whether the problem came from the ECU or not. The problem remained the same.Then, we change the turbo which had a weakness and the fresh air intake tube to the turbo. And " happiness " the engine worked perfectly even after an hour of driving. BUT, after reassembling the entire injection system specific to the Lotus Esprit, the problem returned as before. I am desperate and lost as my kjetronic specialist. The pressures are good the flow is good, the AFR is at 12.5, the electrical charge is good, BUT when it is hot in the engine compartment, the engine does not take its turns at heavy acceleration and we can not find out and understand why. Can you give me some help I need it. Do you have any iexperience about this symton and the possible causes and solutions Best regards Hugues

hi Jason Did you test it? As soon as the covid19 is closed I will order this part to change mine if somebody tell me that the product is good enough

Well, thank you, I am going to try to do the same work you did. I hope I will be carefull enough! Cheers

Hello Finally did you find the solution?

Hi Do you solve the problem? And if the problem is solved what part was the source of the problem and what waw the right solution? Hugues

hello I organize in France a 3 days WE in may 2020 with only Lotus Esprit cars. I am looking for a nice TS for the Lotus Esprit owners who will participate to this WE. Will it be possible that I order the same TS? Cheers Hugues

Hi Andy, do you have any news about the Permatec sealant. Did you used it and did it stop the oil leak? Harry , can you give me the name of the blue sealant you using for the gearbox? Hugues

Hi - if the overspeed module is out of order, where can I found one. Do Lotus car still sell it? - I check the electrical connections in the" relays box" (where the coil is) on the back of the engine but I didn't change any relay. - I have the USA Shop Manual . The Bosch Injection specialist I know normally tested fuel prssure, throttle , frequency control valveetc. I hop he did really!! - By the end of the month I will check relays, connectors. Thanks a lot Hugues

For the sump, I finally just check the bolts and If they were corectly tighted. some weren't. Now it is good Hugues

Ok thanks 1- I change the coil 3 years ago. it was very very old one and at that time the engine stopped all the time even it was cold or warm 2- Anyway, as John sayed I will check the coil next time. The 3 years new one can be a wrong one... 3 - I will buy a "Electronics freeze spray " to test what Atwell adviced. But is the the EOM overspeed module easy to find in the car? As far I understood it is not inside the engine bay but beside? Is it normal that heat can damage an overspeed module? Is it easy to find a good one? Is it a special Lotus or it can be found somewhere else 4 - I allready test everything in K jetronic with a Bosch specialist, change batterie, sparks, coil, ignition harness and distributor cap. That is why now I just thinking about a part which doesn't accept the very warm heat inside the engine bay as a condenser can be . But Atwell informed that there is no condenser with the overspeed module! 5 - Sorry for my english but I try my best Hugues

Hi After 70 miles driving, the engine is not running good; it loose a lot of RPM because of thre heat inside the engine bay. (when it is cold the engine don't have any problem) Do you thing it can be the condenser of the RPM limiter which can be too old to support the heat in engine bay??? And where is this condenser? The Bosch Injection K Jetronic has been tested and it is good. Hugues

Thanks a lot for your answer Hugues

thanks for all how do you get a 1.53 ratio if you keep the 38 teeth pinion? 38x25 gives 1.52 ratio. you are right to say that with this ratio there is quite a big step between 4 and 5 th gear. Have you been told about a 6 gears C35 gearbox? I like the idea of stronger cwp, faster accelaration but I don't want to low the max speed and to have hudge fuel consumption; What is the solution?

ok and very good for stronger cwp but to keep the same max speed it is necessary to change the 5th pear pinion to get something like 38x26 if I don't do a mistake! and 26 teeth pinion doesn't exist and seems to be no good idea to get a 1.46 ratio for a 5th gear and may obliged to change also the ratio for the 4th gear; But I am not a specialist, just wondering what is the best to do because i have to change the cwp.

Hi is it possible to renew sealing joint between engine and sump with the motor still in place Hugues

Hi I have to change the clutch shaft . is it possible to remove it without opening the gearbox? if it is possible, how to do it Thanks for help Hugues

ok thanks for the information but what is the advantage to use this ratio? and also what is the cost? Hugues

hello Just discover that a 7x34 is possible for a Lotus Esprit. I thought it was not possible. What is the best advantage to use it. As far I remember some of Citroën DS Car have been sold in the USA with this ratio.

hello I am loocking for one hazard switch light for my 1986 HCI Lotus Esprit Turbo. Do you know where I can find a new one. thanks for your help Hugues

Lucky guy. Do anybody have another CWP to sell? I will be very pleased to buy it.! Hugues