94 accord EX f22b1 sohc vtec 2.2
aem cam gear adjusted to -3 degrees
experiencing knockin noise an 1/8th throttle when engine is at operating temps.
put 89 and 93 octane and still knocked so i don't think its detonating. should i reset the cam back to 0 degrees? someone let me know because i don't
thanks

-does anyone know or is this forum just about specs?


Modified by specR7 at 9:32 AM 9/14/2005

 

nobody has heard of this?

 

High or Low on the motor (top end or bottom)?
Is this rpm sensitive?

P

 

sounds like high can't tell cuz its only under engine load but it sounds like valves. at any rpm under very light throttle. clicking noise

 

Same deal with mine, still ticks with 93. I even checked my timing (within limits), did a valve adjustment myself, still did it, took it to the edaler for a valve adjustment (incaseI didnt do it right) still ticked.....etc.....maybe pull the head and clean any deposits that might be pre igniting the AF mix?
A tech told me it was just characteristic of the 2.2 F series engine. As far as I know, its just the valve train ticking a bit, but these engines still last forever despite it. Now, I have an LX, but I think this is true for ex's also

sohc

 

it could very well be the engine timing...i experienced this on my b18c build, the cam timing was off and i had a pinging problem that was bad....i thought it was the compression but even after running 110 octane it still would do it. i looked into and noticed valve timing to be off, after i corrected this it ran fine with no pinging or detonation...

if not it could be excessive carbon build up, i have this problem and it makes a ticking metallic noise on hot days...you could always try seafoam to see if that cures it, or take the camsprocket back a degree or so...

 

Pull your valve cover off and shake the rocker arms. See if any of them feel loose. Then do a valve adjustment.

 

they're all gonna feel a little loose if you are just shaking them and not checking them with feelers...