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Everything posted by kehoeautomotive

  1. Glad you got it fixed. I did two timing belts in one day and installed two belts. Both came from JAE and both worked perfectly. Sorry you had trouble!
  2. My stevens has electronic fuel injection from a GM. Looks to be the same system as a chevy Corisica or perhaps a Cavalier. This has been very useful information. Thanks so much. There service manual has a different set up in it so I had to go in blind. But the car is running great. The fuel sending unit was stuck and I beat on the top of the tank with my favorite rock and it now works again. I'm checking the fuel filter for rust not it has a hundred miles on it. If I find any, I will pull the tanks.
  3. Glad it had it. I may have saved the engine since we've never experienced over boost we could have destroyed it. Does your car have a fuel injection? Is it purely mechanical?
  4. I used the original fittings for the oil return line. I can whip up the line in about an hour and it fit perfectly. Mail me an old one and I will fix it up. Just do it soon as I'm moving to Australia this summer. The car does has a fuel cut computer/module as well as a computer that controls the frequency valve and fuel enhancement items for the k jet system. We took the regulator out and fixed it. The valve inside of the boost regulator was rusted in place. I beat on it with my favorite rock, put anti seize on the shaft and installed a new diaphragm. It's nice to see the car back on the road and running like new. Even got the idle up for the Ac system adjusted just right. Now we have to fix the fuel gauge. I plan on taking the sending unit out of the tank and testing it. I suspect it is stuck too. I will to clean it and then beat on it with my favorite rock. A Chinese luck dragon once sat on my favorite rock and that's why it can fix so many things.
  5. Thanks guys for chiming in! I will take that gizmo off, clean it up and put a new diaphragm into it and see what happens. I will also make sure to beat it with my favorite rock as well. I also made made up a new turbo return line too. Here is a picture of it. Can make more if anyone else needs one as I now own the correct Teflon tubing that the correct crimp shells and dye. Here is the picture.
  6. That's what I was wondering. The manual I have shows a vacuum dash pot with an arm that goes to an internal valve. This set up does not have that. I have no idea without a manual on this set up if it's supposed to have a bolt in there.
  7. So I took my buddy's car out for a spin today since he told me that the engine was "cutting out" under acceleration. I quickly determined that the boost was going to high and I'm guessing that the computer is shutting off the fuel. There is a valve under the turbo that I suspect controls the boost. The manual I have shows a completely different set up that this car has. Here is a picture of the valve. Is there supposed to be a bolt in the bottom of it? I also noticed that his turbo return line is leaking oil so I brazed in a new return line while I was poking around under the car. Does anyone know where I can get a manual on this turbo set up? Did a bolt just fall out of this? Or does it have some sort of vacuum seal or spring inside of it?
  8. Thank you! The other one went much faster! Since I did the other I see there are some missing spacer washers on the Stevens. Someone must have left them off in the past. I repulled the triangular bracket and corrected the problem. Also the previous mechanic missed the stabbing on the distributor shaft by a tooth on the Guiario so i fixed that too. (Man made problems are the worst and I found two in one day.) I installed two different belts, one gates nitrile belt and one JAE blue belt. I replaced the tensioners too. So who has a counter lever burroughs gauge!?! I tried my best to use this crappy spring gauge one of the mechanics here loaned me. POS and did not fit well. I'm replacing all the vacuum lines and some emission tubing and putting the air cleaner/ covers etc back on and declaring this car done. Fixed the CIS, tuned up the car, changed all the fluids, rebuilt the brake MC and calipers, tires, suspension bushings, motor mounts, clutch, fixed ALL electrical (even got all the warning lights working), and replaced the belts. So stick a fork in the Guiraro, will be finished tomorrow. I have another Esprit being towed in. Has not run in twelve years and has a broken timing belt. I will pull the engine to see how many valves it bent. I like how I can test a lot of the CIS system with the engine not running or even in the car. It looks like the head has shim buckets to adjust the valves on these engines... I hate those.... my Rabbit has that.. sucks. I plan on getting the valves/engine parts/head gasket set from JAE unless there are any better suggestions. I like JAE because it's been a one stop shop for me. Very helpful crew. I will start a new thread and take more photos when I get my hands on the new Esprit! Thanks for all the help once again guys!
  9. I just changed the timing belt on the Stevens lotus today. What a pain in the ass! It took me 4 damn hours. Now I have to do the other one. Gonna be at work several hours after closing. Hope I can do the other one faster. Grrrr....
  10. Perhaps the two of them will start humping like Luck Dragons!
  11. The scene outside my window today. Two Lotus today. Just had a guy call me who saw them and has another one that has not run in years with a broken timing belt. I told him to bring it by. Both of these cars are running like tops. I was able to graph the duty cycle on my freq valve with an old snap on meter. Made a bunch of adjustment using that and a gas analyzer. Lots of fun figuring it all out. I've learning A LOT in a very short amount of time. Tomorrow is timing belt day at the Lotus Spa.
  12. Thanks for all the help once again guys! The WUR was not operating and therefore the "warm control pressure" was WAY off. It was stuck from sitting up and sending too much fuel and pressure back to the tank. I took the WUR out, sprayed some cleaners into it, blew it out with compressed air and beat on it with my favorite rock. It now runs great! I made some adjustments and and fixed a hard start problem when warm (broken connector). I now want to test the Frequency valve though. What do you all use for a duty cycle meter? Why do the cam belts have to be replaced every two years? Most of the cars the mechanics here tell customers every 5-7 years. Are Lotus belts inferior? When I got my Lotus I brought it to the British Car show (250 cars plus) here so I could meet other Esprit owners and learn about them. My Lotus was the ONLY ESPRIT in the entire show! This year there will be two (my buddy's and mine!) I'm now going to fix the headlights as they went crazy on the test drive. They started winking uncontroably! LOL!
  13. All I am saying is that no shops that I can find around New Orleans is willing to work on it. New Orleans is a small town. That's why I have to fix it myself , not syaing that there are not experts on these cars.... like the guys on this site. That's why I had to ask questions. I hear your advice. Section LF in the service manual has become my life these days! I found "warm control pressure" is way too high (I am below sea level here). Not sure how to adjust or fix it but I am working on that. Making progress! Now that I am getting more confident that I can fix this, I will change the timing belt. I see that the current timing belt on the car is the updated Nitrile Belt. That's what JAE told me anyway so I am going to use another one of those. Anxious to fix the warm control pressure problem to see if it makes the car run any better. If I do not have any improvement for the fuel system pressures testing results then I will move on to the frequency valve testing. Thanks for all of the useful advice on the fuel system!
  14. Because if I can't get it running right myself, no one else I know of can fix it so then the vehicle will be scrapped. It's not like I can pick up the phone and call the local antique Lotus garage mechanic and tell him to fix it up. I have to figure it out for myself. Also opening new can of worms up during diagnostics is never a good idea. "Cant find the fuel problem.... did I get the intake cam off a tooth? Sigh.... If I ruin the engine I promise I will let everyone tell me I told you so! :-) Thanks for the useful knowledge. Glad to know I can check it running.
  15. I will find out what the frequency is. I have already started down the fuel pressure testing tunnel so i figure that I will finish that testing first. I will of course test the frequency valve as soon as I figure out how to do that (the manual will tell me I'm sure). I have all the fuel system fittings and think I have those tests figured out. Looks like there are 3 different tests I need to run there. Will do that this weekend.
  16. I am trying to check control pressure hot then cold. Did I hook this up on the wrong side of the wur? All I get here is line pressure. I hear what you guys are saying about the timing belt. If I can't get the car running then I don't want to invest time into replacing the timing belt. The belt was new right before it was laid up. If it breaks during fuel testing then you can say "I told you so all you want". Thanks!
  17. Will change the belts. Photos to follow. Section LF in the manual is becoming my life. I am going to test system pressure, cold control pressure and warm control pressure next.
  18. I too am learning the Bosh CIS. What is the original symptom that made you start testing your frequency valve? I believe it is controlled by the ECU and uses inputs from the Lambda sensor along throttle position switch. Where did you get your CIS testing kit and can you show a pic of the valve tester you made? I need the same!
  19. Another thought... Is it possible for the fuel by pass valve to not close all the way which would let air feed back to the air box and thereby not pulling enough air over the throttle plate? Does that ever happen?
  20. Hi guys! I am not a mechanic but I do work at an automotive shop. I have a 1987 Lotus Esprit (belongs to a friend) and I just got it running after 10 years of sitting up. My buddy said it would just not start one day, called around New Orleans and found no one to work on it. I told him I would work on it for free because I wanted to learn about the cars (I have a 89). I put fresh fluids and fuel in it along with a new battery and quickly found that it had no ignition fire. I put a petronix pickup in it I got from JAE and it started right up and ran!!!! YEAH!! It is running lean I think. When I try to rev up the motor it revs very slowly and pops out of the intake. If I push the CIS Sensor Plate down a tiny bit and give it gas at the same time, it revs right up and sounds great with no lean pops. Here is what I've done to try to fix this problem. I ran a fuel pressure test at the inlet line to the fuel distributor. It has 95 pounds of fuel pressure at idle (Thought perhaps low fuel pressure). I checked the timing and vacuum advance (I thought if the timing was out it could cause lean pops) and I smoked the intake system to check for vacuum leaks (thought if there was a vacuum leak air would not pull the sensor plate down.) I put a small wheel weight on the sensor plate so i dont have to push it in and out of the garage. How's that for lazy! I thought perhaps the lower injector seals might be torn on the bottom rings but not the top ones and I would not see a vacuum leak but still have one. I'm not sure what testing I should do next. I would like to do more tests and have access to fuel injection testing equipment but I don't which direction to go it. A volume test where the injectors lines screw in? Any suggestions? Am I barking up the right tree? Thanks so much!!! Thomas
  21. Hi Mark my name is Thomas. My wife was offered a fancy job at UVA and it looks more and more like we are moving there. I own an automotive repair shop in New Orleans and when I move to VA I will be unemployed. I plan on staying that way for the foresable future (on purpose). Anyhoo I have a 89 Stevens Esprit and I am fixing up one for a friend (a 1987 Esprit). I know nothing about Esprit. It's not run in 10 years and i just got it running recently. 10 seconds after that the clutch bearing locked up and the calipers locked up. Got those fixed now and I am moving on the the Bosch CIS system. It looks similiar to the CIS sytem in my Callaway Rabbit GTI. The Lotus runs like shit and I am looking forward to figuring out how to make it run well. Since I will be an unemployed mechaninc with a shop and a car lift near you I thought I would reach out. I work on interesting cars for free! Any other Lotus guys up there? I also have a 2009 Elise and a 1994 Mazda RX7. I am wanting to learn more from people like you and perhaps blog about my shop owning experiences.


    Thomas Alexander  504 220 3238


  22. When you are as old as that you say things like "In front of the horse or back of the horse". We have many customers with both left & right hand drive vehicles. We always say left or right side to keep it straight. Not enough hours in the day around here. I charged up my A/C system and will let the freon leak out once more to make sure there is plenty of oil and U/V dye around the leak. Thanks for all the help guys!
  23. I will check under the passenger seat. Thanks for the heads up. I replaced my Ac compressor already. That was the first leak that I found. I'm not surprised that there is more than one. Shreader valves are new and retrofitted.
  24. I search the word "evaporator" and come up with nothing. Anyone know of any posts on evaporator removal? I suspect mine is leaking. Can you inspect any or it before removal. I've dyed my Ac system and ran the black light over it and I've found no leaks so far. It's too hot in New Orleans to run without Ac.
  25. This is all great! I'm learning so much here. I am going to install a Clutch Throw Out Bearing this weekend and much of this information is helpful. Thanks for sharing the great photos. I may need fuel tanks and I'm glad to know who can make them.
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