ALL VALVES Were TIGHT - Valve Adjustment Done DIY
03-31-2018, 02:28 PM
#21
I need to get out and do my S's valve adjustment, been 5 years, but only around 15k.
On the F20/22 the chain tensioner keeps enough tension when rotating ccw, however Honda's K series, by design de-tension the chain when rotating backwards, the tensioner has no ratchet to maintain tension. If the car you're working on has dubious maintenance history or extreme mileage, there's a chance that the chain can jump on restart.
J V6 has a strong (usually) hydraulic tensioner that keeps the belt tight all the time, their other I4s will usually keep tight when rotating backwards.
I've also found other manufacturers, Ford being the worst, their Ecoboost 3.5, if it's rotated backwards at all, you're just about guaranteed to have a valve destroying incident. Stupid.
On the F20/22 the chain tensioner keeps enough tension when rotating ccw, however Honda's K series, by design de-tension the chain when rotating backwards, the tensioner has no ratchet to maintain tension. If the car you're working on has dubious maintenance history or extreme mileage, there's a chance that the chain can jump on restart.
J V6 has a strong (usually) hydraulic tensioner that keeps the belt tight all the time, their other I4s will usually keep tight when rotating backwards.
I've also found other manufacturers, Ford being the worst, their Ecoboost 3.5, if it's rotated backwards at all, you're just about guaranteed to have a valve destroying incident. Stupid.
04-01-2018, 11:53 PM
#24
Thread Starter
Mine was replaced quite recently in terms of mileage at a Honda dealer. I personally changed the spark plug seals though. Those were bad especially on cyl 3.
04-02-2018, 03:55 AM
#25
That oil is killer in the coil packs.
04-02-2018, 10:03 PM
#26
Thread Starter
Deadly! I had to replace my coils after that. Cylinder 3's coil was drenched in oil...that was the main cause of a misfire. After swopping them out with another set of used AP1 coils with less mileage on them the problem went away.
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