10 August 2021 Took a few days off to collect my thoughts. I rechecked the exhaust and there was a small bit of blowing at the downpipe joint so I took the exhaust off cleaned it up, cleaned the O2 sensor as well and put it back together. No noticeable difference. So purely out of desperation I decided to redo the timing and see if I could make any difference that way. I stripped down my spare engine to see what that timing looked like but to me it looked like it was aligned off a tooth. I stripped down my engine and checked the VVT unit was locked and correctly aligned as per the Mazda workshop manual (which it was). I redid the timing and this time I aligned the sprocket teeth with the top edge of the alignment mark with the engine at TDC. Reassembled everything again and started it up, that certainly made it run smoother and didn't seem to be misfiring like it was. I had to adjust the throttle stop to about 3%TPS to get it to idle. I ran the engine up to temperature and then tried to clear the soot out by running it at about 3000 RPM which certainly got it nice and hot, maybe a bit too hot, as the soot caught fire! Turned off the engine before my bin was melted. I'll have a look tomorrow at the spark plugs and see what condition they are in. 11 August 2021 Pulled the plugs out again and they are still black with soot. I suspect this is a result of the base map supplied with the Canems ECU. Picked up a very lightly used exhaust centre section (without silencer) and rear box locally for £40. The MX5 2.5 exhaust rear box doesn't seem to easily fit in the rear space so I will need to come up with another solution, I'm reluctant to spend over £300 for the Jetex box while I'm not working. I can either resell the back box or keep it and cut the angles off to use with another box. 18 August 2021 Took the Mazda wheels off and bolted the new wheels on, I needed 4 2.5mm washers between the front wheels and the hubs to clear the sports brake calipers on my donor. On the rear I just needed 1 washer. Really pleased how they look, had a quick look at how the spinners will fit, I will need to make up some sort of spacer so they clear the nuts but until I get the correct spacers in place I can't finalise that. 23 August 2021 Didn't do much on the car last week as I needed to do a fluid change on the TVR ready for a weekend of hard driving at Millbrook Proving Ground. Got the front and rear body mount brackets drilled and on the car. Added some foam on the front mounts (cut from a yoga mat), glued on with hot glue for now. The rear mounts I modified an engine mount so one side was rubber and used the other end to bolt it to the bracket. This is just a starting position and I plan to add additional layers of rubber to achieve the desired body position. Next I will round up some volunteers to help me with the first fitting of the body.
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AuthorThis is my first kit car although I've messed about with cars all my life. Archives
November 2023
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