why do GC8 models spin bearings?
03 January 2010, 10:42 PM
#31
please dont attempt to start a debate blaming semi synthetic oil over fully,,,,, these days oils are SOO well refined that on a general road going car even with the engine thermals of a impreza it aint gonna cause him to spin a shell,,,, even if he leaves if for 10k miles between changes,,, track use or very high speed driving AND DOING IT REGULAR then yeah he will need it but the temps for the shear values of most semi's is alot better than people give credit for
ive used semi synthetic for road use in my scooby,,, carlube tripleR and change to fully for track use/when i go to the ring or in the summer when the car gets a pasting on motorways,,,, winter time i use semi synthetic and the engine is fine after 20k miles !!!
same with the " prime the engine first" bollocks,, fill the oil fiter IS a must ill agree but priming is just a load of bollocks,,, where you thing the engine oil sits when you stop the car ???,,,,, and do you REALLY belive you drain ALL the oil out of a car when you change the oil ??? theres always old oil in the parts you are priming like a numpty moving it about,,,, the engine is still spinning ffs hence you are priming it ,,,, or you think that its turning at 2rpm when you disconnect the coil pack ? if so how does the pump get up to presure to pump the oil about ??? think about how the pump works and how a engine REALLY works
ive used semi synthetic for road use in my scooby,,, carlube tripleR and change to fully for track use/when i go to the ring or in the summer when the car gets a pasting on motorways,,,, winter time i use semi synthetic and the engine is fine after 20k miles !!!
same with the " prime the engine first" bollocks,, fill the oil fiter IS a must ill agree but priming is just a load of bollocks,,, where you thing the engine oil sits when you stop the car ???,,,,, and do you REALLY belive you drain ALL the oil out of a car when you change the oil ??? theres always old oil in the parts you are priming like a numpty moving it about,,,, the engine is still spinning ffs hence you are priming it ,,,, or you think that its turning at 2rpm when you disconnect the coil pack ? if so how does the pump get up to presure to pump the oil about ??? think about how the pump works and how a engine REALLY works
So do me a favour bud and WIND YOUR FECKING NECK IN!!!
03 January 2010, 10:59 PM
#32
No, you were quoting "previous threads" in a very specific manner, as evidenced by your use/quote of the words fabled and "****", along with the reference to singing a silly song, thereby suggesting you were taking the p*ss.
If it's not your opinion you need to learn to express it a little more clearly.
I know who PSLewis is, what I wasn't sure of was exactly what dpb meant by "another startup alias", given that nobody posting on this thread is exactly new to Scoobynet.
Are you asking me or telling me? You can suggest the above if you like, but the recurring scenario of bearing failures in the minutes/hours/days following an oil change suggests that despite what you might believe, these engines do and are suffering bearing damage in the moments before oil pressure is established. For the third time, read the theory I linked to above and come up with an equally well grounded and explained reason why you think it's wrong.
Your point being? The owner's handbook doesn't tell you a load of stuff that is both important and obvious. The various service manuals contain errata that will result in serious problems if you don't use your common. Moral: Just because the service manual doesn't mention it, doesn't mean it ain't a good idea.
So you do carry out procedures that aren't in the manual then? Doesn't that undermine what you've just said?
If it's not your opinion you need to learn to express it a little more clearly.
I know who PSLewis is, what I wasn't sure of was exactly what dpb meant by "another startup alias", given that nobody posting on this thread is exactly new to Scoobynet.
Are you asking me or telling me? You can suggest the above if you like, but the recurring scenario of bearing failures in the minutes/hours/days following an oil change suggests that despite what you might believe, these engines do and are suffering bearing damage in the moments before oil pressure is established. For the third time, read the theory I linked to above and come up with an equally well grounded and explained reason why you think it's wrong.
Your point being? The owner's handbook doesn't tell you a load of stuff that is both important and obvious. The various service manuals contain errata that will result in serious problems if you don't use your common. Moral: Just because the service manual doesn't mention it, doesn't mean it ain't a good idea.
So you do carry out procedures that aren't in the manual then? Doesn't that undermine what you've just said?
All I was doing was explaining the "don't forget the bells round your ankles" in dpb's post, as from your reply to it, I assumed you were not aware of these posts in old threads!
Far from taking the P**s out of anything said on this thread, I was perhaps taking the p**s out of the "**** oil change procedure" from that thread of long ago. You obviously missed that, so I apologise for not making that more obvious.
I can't see that I've undermined anything I've said. I simply stated a fact from the owners manual which, to the uninformed, may seem a perfectly acceptable oil change procedure, and by printing it, Subaru must be perfectly happy with owners following it? My final statement made it pretty clear that thought otherwise!
I read your link and remember it originally. There appears little or nothing in it that I disagree with, however, the following section could be open to comment by those with the relevant experience? Of the 20 or so cars that I've owned in more years than I care to admit, only 2 have been Subaru's - and no bearing failures - but now I'm worried!
The quote from your link :-
Oh - and before someone pipes up saying "you don't get this on Ford (etc) engines", that's a red herring. Other designs of engine have different oil systems, different oil pumps, different size bearings etc. etc. etc. This line of logic simply doesn't apply, not least because sat here, in a Subaru forum, we're probably not best placed to know whether other types of engine suffer from this problem or not anyway.
My apologies to the original poster for this unfortunate diversion!
JohnD
Last edited by JohnD; 03 January 2010 at 11:21 PM.
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