D16Y8 with goodies off a tooth?
09-21-2015, 07:12 AM
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D16Y8 with goodies off a tooth?
So, I spent the better part of the weekend tearing down my car to put some goodies in. 1998 Civic EX, D16Y8 now with Crower retainers, keepers and springs to handle a Skunk2 Tuner Series 2 Cam and pro series adjustable cam gear (please let's stay on the topic of my problem and not my choice of parts). Gear came shipped at roughly 4.75 degrees retarded, since it's also made to fit the Z6. Makes sense. So I fit everything in the top end, set to TDC (As marked by manufacturer) and fit the bottom end to TDC. Strapped everything together, torqued down to spec and tensioned the belt properly. Properly as in crank pulley first, then tensioner, then water pump then gear. Rotate three sprockets of the crank counter clock and tighten tensioner bolt. Rotated by hand and nothing was binding, no irregular noises of any kind. Valve lash was done to spec afterwards.
Here's the kicker, started it up and it sounded like the belt was slapping the belt cover. Seriously, that's what it sounded like. The noise was coming from the right side of the car, my initial thought was belt slapping the cover. Took the cover off, put everything back together without it, and it still makes the sound. I am very skeptical about P2V problems, as I compression tested the first two cylinders and 180 on both. Yea, I didn't test the other two because the noise is coming from the timing belt area. I assume.......that would hint if a valve was bent. I even took the exhaust header off and stuck a flashlight in and rotated the engine. Valves seem to be closing without any problems.
So my theory is it's off a tooth. But how the eff can I tell which way it's off? It's an adjustable cam gear and everything lines up timing wise. I'm very stuck. Pulling the head off is the last step I want to take but it may be necessary.
Any thoughts?
Cliffs: Upgraded valvetrain, S2 tuner 2 cam and adjustable gear. Sounds like belt slapping but it's not, feels like it's off a tooth. How can I verify if it is off a tooth, which way? Also, CEL came on for CFK so I cleared it and it only pops up about a minute after running the car.
Here's the kicker, started it up and it sounded like the belt was slapping the belt cover. Seriously, that's what it sounded like. The noise was coming from the right side of the car, my initial thought was belt slapping the cover. Took the cover off, put everything back together without it, and it still makes the sound. I am very skeptical about P2V problems, as I compression tested the first two cylinders and 180 on both. Yea, I didn't test the other two because the noise is coming from the timing belt area. I assume.......that would hint if a valve was bent. I even took the exhaust header off and stuck a flashlight in and rotated the engine. Valves seem to be closing without any problems.
So my theory is it's off a tooth. But how the eff can I tell which way it's off? It's an adjustable cam gear and everything lines up timing wise. I'm very stuck. Pulling the head off is the last step I want to take but it may be necessary.
Any thoughts?
Cliffs: Upgraded valvetrain, S2 tuner 2 cam and adjustable gear. Sounds like belt slapping but it's not, feels like it's off a tooth. How can I verify if it is off a tooth, which way? Also, CEL came on for CFK so I cleared it and it only pops up about a minute after running the car.
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