Hi, my 93’ 240 has been sitting and I finally decided to start working on it but can’t get it to start. A month before I redid the timing and got it to run until I let it sit again. I began replacing parts like the motor mounts, deleted the ac, new battery, new spark plugs, new crank gear, and a new timing belt/tensioner And after installing it all it never turned on again. I checked all the fuses, check for spark, gas pump, and starter but still can’t figure it out. I took a video and noticed smoke coming out of a vacuum line and while cranking it would stop and make a slap noise. Any advice would be greatly appreciated 🙏🏼