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mswest68 - The Lotus Forums Jump to content


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About mswest68

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    80 Esprit - 76 Eclat -70 Europa
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  1. So, in light of the many other things I should probably address on the motor (timing belt, accy belts, oil links, etc.) and because I really want to remove and inspect the exhaust, I decided to yank the lump out. Having never done this before, it took me about 6 hrs, but well worth it. Now I can properly clean everything up, replace all the belts, seals, hoses, etc. and hopefully fit a functioning exhaust. Speaking of the exhaust system, I can't seem to find anyone that sells a replacement silencer and other parts. Considering the Alunox system. I've emailed the company twice, but haven't heard back. any recommendations out there for replacing the whole exhaust system with a higher performance aftermarket m,m? Matt
  2. I think my problem is in the wastegate, so I'm going to try my luck at rebuilding the assembly, but nothing is ever easy on this car. I'm stumped.. I can't figure out how to get the wastegate off the manifold - there's just no accessing the bolt nearest the sump. I then tried to drop the wastgate while still on the adapter manifold. no luck there either - again can't get to the nuts closest to the motor. Does anybody have any experience with this? Any advise would be great. thanks!
  3. While taking a thorough look under the car today, I noticed the exhaust back pressure valve (EBPV) is not physically connected to the corresponding lever on the exhaust pipe. The valve and associated spring look to be in bad shape - probably broke away from the lever. Though, I'm not sure this is what's causing my problem.
  4. I'm not sure if this is turbo related or a failure in the engine management system. Car operates fine at idle, through normal acceleration, up until I hit about 4200 RPM. At that time the engine completely cuts out with a violent loss of power. When this happens I naturally take my foot off the accelerator, at which time the car then drops in rpm and again operates normally until high rpms are reached again. Could it be a bad overboost switch, or wastegate failure? Additional Info.. may be related... my boost gauge never moves and and do not hear the blow off valve operating when driving. Any help trouble shooting would be greatly appreciated.
  5. Steve, that makes sense - thanks for the first-hand insight. I'm curious... If the cam bores were over sized, how is the additional bore width accommodated without the use of cam bearings? Matt
  6. My guess is that the cam followers have been machined 5 thousands over. Put a inside micrometer to them to check all.
  7. from info learned through earlier today, it appears all heads are the same form early JH through 80ish Lotus s 2.0.. differences seem to be imitated to the water outlet through the head instead of the earlier intake manifold. reducing destination in cylinder # 4 Understanding that once you get into the stroker engine specs, head geometry changes considerable.
  8. Does anyone know the differences in block and head castings from the 1975 907 through the Esprit S2 907 castings? It looks to me like the block numbers never changed through these years (B907E0708S). Were the internal block castings identical through these years? On the other hand, I see a bunch of different part numbers for the 907 heads from 75 – 79. The differences appear to be more towards the ancillaries and not reflective of the internal casting geometry of the ports and cooling passages. I'm trying to determine if these years are generally interchangeable with regards to internal castings. Thanks!
  9. Running or non-running. Partial or complete. Please text Matt 919-264-6652. Thanks!
  10. mswest68


  11. Hi. I'm in need of a body shell to replace my current 76 Éclat shell. It seems somewhere in my Eclat's past, there must have been some serious front end damage and the fix was to Frankenstein a new nose on to the remaining shell. They did quite a terrible job. Rather than try and fix, I would like to start with a new (used) shell. If anybody has any information on where I might find one in the US, I would greatly appreciate it. Thanks! Matt
  12. Hi everyone and thanks for all the replies! I was lucky enough to find one at Dave Bean Engineering! The part is in transit as I type... Surprisingly, they had quite a few in stock, so if anyone else is in need, now you know where to look. Happy restorations! Matt
  13. Thanks for the reply. The steering arm I'm in need of (part number C075C0123Z) mounts to the back of the vertical link and provides the attachment point for the track rod ends. I've inquired with SJ Sportscars, but unfortunately, they do not have any.
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