Quote:
Originally Posted by TX
I've done all my last oil changes for basically 8 to 10 years. The first crank is like grinding bolts it makes me and anyone around me basically cringe. I've personally replaced both chain tensioners, but the noise has continued after a full drain oil change. I do drain it for over an hour usually and I run really really hard up to 210 before I pull the plugs. On the refill I fill the filter canister with a liter or two, but still noise for a few seconds. At this point I don't think it is chain related, but I can't say what it is. I'm sure someone here knows or has ideas.
Since the rod bearing replacement I've done one change and the noise wasn't there. (also ZERO ppm lead reported) One thing I'm really happy about is my oil temps reach normal ranges much faster after the BE swap. I used to have to drive a full trip 7 miles to work and it would still be cold, but now I am barely 1/4 the way there and it's past the first (dot) mark on the way to 210 which never happened before. I can only attest this to better oil flow on startup allowing for quicker warm ups.
Oil pressure is obtained in <2 sec. I do not believe bleeding is needed on these engines. cranking over and over is just adding to the duration before oil pressure is built.
I work almost daily around very large diesels, standby generators, marine engines.. In the generator range, basically all of what I work with is designed to fire and run at fully loaded RPMs instantly. We're talking several hundred KVA, Typically 350-750KVA.. The load transfers in under 3 seconds from a dead stop to full RPM. There are crankcase heaters on them to keep the oil temps up, but this proves that you do not need oil circulating by random cranks to obtain proper pressures. In most engines unless they were totally built from bone dry parts on a table, it's almost instant and less and 2 seconds at the worst as we know in our S65s.
Edit:
I originally opted for assembly lube, but was educated that oil was the better option and didn't argue that point.
So I will pass along that oil is totally acceptable for a bearing replacement in an already oiled engine.
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I've been a car mechanic for 26yrs, every petrol engine I've done an oil change on I've heard the start rattle, it's normal, nothing particular to the S65. (Diesel engines you often can't hear it over the engine itself, as you probably know). No need to change tensioners
, or when you said 1st crank, did you mean any 1st crank, not just after an oil change?
and I run really really hard up to 210 before I pull the plugs
Sorry, don't understand that sentence.
I wasn't suggesting that cranking was ideally needed after a regular oil change, just after rod bearings as much more oil is drained off.
Re large diesels, ever work on a Deltic engine?
Strange about the oil temps, I would've thought that better oil flow would
reduce oil temps slightly and possibly slightly lengthen warm up, weird that yours warms up more quickly.