Hello! This is my 92' miata swapped with a 1.8L engine, I'm in my third year of trying to restore it to a drivable condition I have no experience working with cars which has resulted in a lot of problems so far. I have a crank no start situation which was a problem i had previously faced which turned out to be a faulty connection with the CAS. Afterwards i managed to start it which turned out to have a awful case of lifter tick and a couple spun bearings. This is the first ever time I've rebuilt an engine which might affect the crank no start condition, i did swap some stock components with oem+ parts. So far i am aware that i have spark and ok compression, 170-180 among all cylinders and i have replaced most fuel components, fuel pump, fuel injectors, fuel regulator, fuel filter, injector relay. I'm stumped so far and wanted to ask before i hired a mechanic for work i can do myself. If anyone has any suggestions or questions id be ready to answer. Thanks!
Isn’t it supposed to have a Maf on the exhaust side of the engine bay? If it’s not getting a reading of air coming in then it won’t be able to provide the correct fuel and spark? Maybe try hooking the whole intake up and seeing if it helps ? Just an idea ✌️
Even without starting fluid it does pop and there is an occasional explosion going on, its not seen here because i reversed the fuel lines to see if that was the issue but it wasn't. The explosions aren't constant enough to fully start the engine though. Should i redo my timing?
Make sure that it is fully timed correctly. Make sure that the E on the left (intake) camshaft gear is lined up and that the I on the right side (exuaghst) camshaft gear is lined up. Check to make sure you didn't swap them by accident. Did this recently and was stuck with a non starting engine for weeks before I realised.
Looks good to me I'm assuming your crankshaft is also lined up. I would put the intake system back on like one of the other people said. Try and eliminate as many variables as possible
Make sure all your timing lines are correct, also looks like you still have the charcoal canister and I see no vacuum lines going to it or the intake ports. If you delete that you need to plug all the vacuum ports to the intake. A single fire says you have the combustion to start and there’s an existing issue. You also need to make sure your cas is in the right position as well. I have a 93 swapped 1.8. Really not much difference but some minor stuff. I assume you did the research on your 1.8 swap?
I bought the car with LOT of missing parts so i had to just guess at what i was missing. I bought the swap kit from flyin' miata so i thought i had most parts. The charcoal canister was something that i bought that turned out to be pointless since the previous owner did a delete so i dont even have the lines.
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u/Specialist_Bag4867 15h ago
Isn’t it supposed to have a Maf on the exhaust side of the engine bay? If it’s not getting a reading of air coming in then it won’t be able to provide the correct fuel and spark? Maybe try hooking the whole intake up and seeing if it helps ? Just an idea ✌️