Should I replace timing chain tensioner? (Honda)
2002 Acura RSX, K20A3 (base RSX), 162K miles, TCT (timing chain tensioner) replaced twice already, last time about two years ago, significant "messing" with tensioner and timing because I turned the crankshaft too far during replacement.
Lately - with temperatures well into the single digits and when the car has sat for 8 - 12 hours, I get a momentary grinding noise upon cold start.
This noise was completely relieved for 1 month/1K miles with a fresh oil and filter change (Mobil 1 5W20, Mobil 1 filter), so I am convinced it is related to timing chain slack (since the tensioner is oil pressure driven) and not the other common cause of cold-start noise for this engine - starter failure.
The noise is momentary, lasting a few seconds at most. Should I bother to replace the TCT again? I am afraid that without treatment, the patient will jump time and require even more attention/care than a simple TCT replacement.
On the other hand, it is bitterly, bitterly cold here. I don't know if I can do this job myself on account of the weather. Taking it to a shop would not only require more expense, but another opinion, time off from work, etc. etc. etc.
Bottom line - with a few seconds of timing chain slap due to momentarily insufficient oil pressure, how likely is the chain to jump time?