Valve photos: Civic 99K Pennzoil + Purolator
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Looks awesome. Is this an R18? Looks like it to me...
Originally Posted By: SLCraig
Looks awesome. Is this an R18? Looks like it to me...
it is
Looks awesome. Is this an R18? Looks like it to me...
it is
Your timing chain looks very happy.
OVERKILL
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Looks fantastic!
Originally Posted By: MONKEYMAN
I thought you were going to post picture of a bad valve.
Me too!
I thought you were going to post picture of a bad valve.
Me too!
Very clean indeed, keep on truckin'
Thanks for the pictures
Thanks for the pictures
A question for the true gurus: Can an oil clean too well?? That engine appears to be spotless.
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
OVERKILL
$100 Site Donor 2021
Originally Posted By: tstep
A question for the true gurus: Can an oil clean too well?? That engine appears to be spotless.
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
No. Oils are all a balance. Just because an oil that is superior at keeping things clean does not mean that it is compromising wear. In fact oils like M1 0w-40, PU 5w-40....etc. are exceptional in both areas.
A question for the true gurus: Can an oil clean too well?? That engine appears to be spotless.
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
No. Oils are all a balance. Just because an oil that is superior at keeping things clean does not mean that it is compromising wear. In fact oils like M1 0w-40, PU 5w-40....etc. are exceptional in both areas.
OVERKILL
$100 Site Donor 2021
Originally Posted By: tstep
Will one of the lubricating metals in the add pack, say moly or ZDDP, plate to any appreciable thickness or will it only build up a few atoms in thickness?
They are always just a very thin layer. Moly is a FM, ZDDP is of course an AW additive.
Will one of the lubricating metals in the add pack, say moly or ZDDP, plate to any appreciable thickness or will it only build up a few atoms in thickness?
They are always just a very thin layer. Moly is a FM, ZDDP is of course an AW additive.
Originally Posted By: tstep
A question for the true gurus: Can an oil clean too well?? That engine appears to be spotless.
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
Every engine that I have seen that was worn out due to wear was very dirty, and or had severly coked rings. We want to keep our engines as clean as possible. Clean is good, dirt is bad,
A question for the true gurus: Can an oil clean too well?? That engine appears to be spotless.
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
Every engine that I have seen that was worn out due to wear was very dirty, and or had severly coked rings. We want to keep our engines as clean as possible. Clean is good, dirt is bad,
Originally Posted By: tstep
A question for the true gurus: Can an oil clean too well?? That engine appears to be spotless.
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
In an older engine without variable alive timing I don't see varnish as being harmful if the engine is clean however in the cam phasers varnish could spell trouble.
It would depend on the engine.
As far as clean goes if you are using a modern oil and not adding anything the oil is balanced and there shouldn't be any issues. Additives may affect the balance and potentially cause problems.
However I've got the VC off my old 2v which I ran mos2 in for quite some time and the top end is spotless,so the whole sludge myth is busted.
A question for the true gurus: Can an oil clean too well?? That engine appears to be spotless.
I don't know the fine details of oil chemistry, but there should be a balance between the oil cleaning and the oil plating the engine with lubricating/sacrificial metals from the add pack. Is that going on here at a microscopic level? And is there any advantage to a slightly increase varnish level?
In an older engine without variable alive timing I don't see varnish as being harmful if the engine is clean however in the cam phasers varnish could spell trouble.
It would depend on the engine.
As far as clean goes if you are using a modern oil and not adding anything the oil is balanced and there shouldn't be any issues. Additives may affect the balance and potentially cause problems.
However I've got the VC off my old 2v which I ran mos2 in for quite some time and the top end is spotless,so the whole sludge myth is busted.
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