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Recent content by e9coupe

  1. e9coupe

    Ignition coil replacement?

    I need one coil for testing my 91 and Amayama shows a replacement for the original. The part number seems to also be for a Legend? What are you guys buying these days? Edit: Found some info on the coils. I may just replace all six since the ones on the motor may be original. No history...
  2. e9coupe

    Cranks but won't start

    Right, it's more running rough than a misfire in the sense that there's no rhythm to it like one cylinder not working like the rest. Maybe there's more than one problem, but it feels like the rough running is related to the vibration it makes throughout the car. An exhaust video doesn't help...
  3. e9coupe

    Cranks but won't start

    The noise is to show the rough running. The noise doesn't bother me, and the exhaust is loud anyway, just trying to show the misfiring. It vibrates the car. It's not normal compared to how it ran in the past but since it's not registered yet I can't put it under load to see how bad it is...
  4. e9coupe

    Cranks but won't start

    It's been a minute... I finally found some time to mess with the car. The timing marks are dead on. Pulley mark and all the cam marks. Fuel injector screens are perfectly clean but I did not have the injectors rebuilt (yet). No signs of fuel issues as far as contamination. New plugs and...
  5. e9coupe

    Cranks but won't start

    I didn't mention it, but I did check them and they were all within spec to my surprise. The car/motor has 180k on it and I only put 4k on it before it was parked so I don't know the maintenance history. I belive it was maintained by Shad at Driving Ambition. I bought the car from a...
  6. e9coupe

    Cranks but won't start

    Put a vacuum gauge on it and it was rock steady. Made my day. All that's left now is taking the covers off and setting the TB belt tension one last time. The interior is still gutted but I'm ready to paint the top so it shouldn't take long now.
  7. e9coupe

    Cranks but won't start

    I always forget about checking vacuum for internal problems. I use a smoke machine all the time though. :)
  8. e9coupe

    Cranks but won't start

    "Smoothly" is questionable but I'm just not sure. It starts immediately, revs quickly, but seems rougher then I remember but that was 12 years ago. I had a friend come over who had an NSX up till a few years ago and he said it definitely doesn't have a misfire but did seem rougher than...
  9. e9coupe

    Cranks but won't start

    BTW, would an OBD1 show a misfire if a valve was damaged? I didn't see a misfire code on the list in the manual and I haven't worked on an OBD1 car in quite a while. I figure it wouldn't show a specific cylinder but maybe a misfire or an 02 sensor out of range.
  10. e9coupe

    Cranks but won't start

    Yeah, when I put the belt on I followed the tensioning procedure but ended up tightening based on what seemed right, which ended up like you explained. The belt seemed too loose by just using the tensioner. I'll take the covers off and start over. Bah. I have the car on the ground in my...
  11. e9coupe

    Cranks but won't start

    The latest... TB was realigned on the front intake gear to the correct 1 mark. All marks line up perfectly with "white" crank mark lined up with pointer on cover. My pulley doesn't have any colors left on the marks but the TDC mark is easy to figure out. Compression is 170-177 on all...
  12. e9coupe

    Cranks but won't start

    Compression is 170-177 across all cylinders and that was after sitting for 12 years. Engine runs good. Not sure why the TB tension would be questioned because the gear was positioned wrong, unless you're suggesting since I made one mistake I've made more. I do question how accurate the TB...
  13. e9coupe

    Cranks but won't start

    SOLVED. And I feel embarrassed and lucky. I tested for spark through a plug and it worked so I decided to take the valve covers off and double check the cam gear positions. Somehow I managed to line up the front intake gear on the 2 with the arrow instead of the 1 with the line. I still...
  14. e9coupe

    Cranks but won't start

    I can't thank you guys enough for the time and expertise you're giving. Where I work we sell repairable vehicles that we buy at auction. I'm a Buyer but help oversee the shop. Our mechanics spend a lot of their time diagnosing odd problems since most have collision damage. A tried and true...
  15. e9coupe

    Cranks but won't start

    Engine ran good prior to TB service, but 12 years ago. I checked alignment marks multiple times during and again after replacement. Fresh gas. Lines clean. New plugs. But I'm second guessing everything now. I've been doing everything by myself so I need to get a helper to check spark...
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