40W oil causing wear problems over 30w?
 

gene, go hammer on an engine block and pretend you are working. Dry start as
many engines as you can, for -- with your reputation -- you need as many broken
engines as possible to overload knowledgeable mechanics. I do hope you believe
in an afterlife, because you certainly are lost to this one.

gene, the size of words you tried to use are already bigger than you
normally
use. It is your utter lack of capability of understanding of how engines
work
that stands in your way.

just admit it, gene, you fix failed engines by replacing one thing after
another until the beast runs. you have to, for you don't know how they are
suppose to work so you can't tell what is wrong when they are not working.

fixing engines is easy, gene. knowing what to fix, that is the hard part.

now, go hammer on an engine block and pretend you are working.


Jax,

You are a bit like my dog. She is a fierce Glen of Imaal Terrier and
attacks with utter abandon.... formidable teeth bared, deep bark, and
no thought to retreat or defeat. She does, however, get the message
when I get her by the scruff of the neck..... you, on the other
hand... apparently with less that a K-9 IQ, just don't know when
somebody has you by the scruff of the neck.... since you hold Physics
up as your personal god, perhaps you'll get the, "cleansing the gene
pool law," but, then, perhaps not.

.... and a bit like time spent with my dog.... I *do* tire of the
endless and pointless games... fought just as a pastime....

Actually, now, bead blasting, priming, and painting cured, I finally
have something constructive to do.... I'm off...... don't despair,
however, the next time I'm not doing anything constructive and you
expound another one of your offbeat and largely comedic posts averring
knowledge far beyond your intelligence or some physics principle not
yet ported through the Star Gate.... I'll be there to, ah.......
debate....

Ta-Ta...

--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
http://www.southharbourvillageinn.linksysnet.com Real Time
Pictures at My Marina
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide

40W oil causing wear problems over 30w?
 

Subject: 40W oil causing wear problems over 30w?
From: Earl Haase

Wow! That sure generated a lot of talk here. I read your post and my
understanding is that your question was, would using 40 wt instead of 30
wt cause unreasonable wear to your genset engine.


You are correct.

The answer is no.

As I thought.

30
wt and 40 wt are not that much different. Once hot they will both do
the same job. A quick search on the web will show that both have pour
weights in the 20s (deg F) so start up lubrication will not be that much
different. As far as prelubing the engine before start up goes, do you
really care that much?

No.

Are you really going to do that faithfully? So
long as you don't sit there revving the engine before the oil pressure
comes up the gen engine should last for years.

Very true. And the owner is even now starting to shop for a bigger (130-150ft.)
boat to have in the next 18-24 months.


However, my guess is that the real issue here is making sure you don't
bust your warranties.

Correct again.

So if it matters that much write the generator
company and get them to give you written authorization to use the 40 wt
oil in the gen set. (My first choice.)

Tried that. They won't do it.

You might want to leave out
that you've already bought the unit. It just seems that once people
have your money they tend to be less helpful. Just tell them your
interested and want to know if their units can use 40 wt oil since
you're going places where they don't have a Pep Boys on every corner.

Didn't try that. Will next time. :-)


My second choice would be if worse comes to worse, how much oil do you
need for the gen set anyway?

5 or so gals. per.

And how many hours are you going to run it
compared to the mains?

A lot more. As the boat will be anchored out a lot on charter.

Not being a fan of multi weights I would suggest
that if you don't want to run 40 wt in the gen run it in the mains and
the trannys and keep a stash of 30 wt for the generator instead of the
other way around.

Basically what we are doing. 15-40W in the mains and gens, 40W for the trannys.

You can live without the gen set but it's a long walk
home without the mains.


True bruder, true.

Capt. Bill

40W oil causing wear problems over 30w?
 

As far as prelubing the engine before start up goes, do you
really care that much?

No.


according to the Yanmar distributor it is specificly recommended by Yanmar in
its manual.

prelubing is a good idea, and has been a good idea for decades.

40W oil causing wear problems over 30w?
 

Subject: 40W oil causing wear problems over 30w?
From:

As far as prelubing the engine before start up goes, do you
really care that much?

No.


according to the Yanmar distributor it is specificly recommended by Yanmar in
its manual.

prelubing is a good idea, and has been a good idea for decades.

Never said it wasn't a good idea. Just not needed in this case.

Capt. Bill

40W oil causing wear problems over 30w?
 

Never said it wasn't a good idea. Just not needed in this case.

nothing is "needed". is just a better idea.

40W oil causing wear problems over 30w?
 

Good choice on the 15W-40, but no, no , no on the last paragraph.

Oils most assuredly do NOT get thicker with increasing temp, even if
they *are* non-Newtonian fluids.
Multi-grades MEET the viscosity requirement( for their grade) at low
temps AND at high temps( usually 100degC).
But the viscosity, measured in either SuS or cSt, decreases with
increasing temps..

You may enjoy hopping over to www.bobistheoilguy.com and spending some
time there. I think you'll find it worth your while. You may want to
also consider Shell Rotella synth 5W-40, and asking your mfrs about
extended drain schedules.

--

"LaBomba182" wrote in message
...
| Subject: 40W oil causing wear problems over 30w?
| From: Bruce in Alaska
|
| (LaBomba182) wrote:
|
|| Thanks, I saw that in the eng. and genset manuals and that's what we
will end
| up doing. Filling the clean oil tank with 15-40W and keeping 40W in
bottles
| and/or pails for the trannys.
|
| Based on this I still can't see how straight 40W would hurt the
gensets in any
| way.
| As long as the ambient temps stay high.
|
| Hell, multi weight oils start out at their low number and get more
viscous as
| their temp rises.
|
|
|
| Capt. Bill

40W oil causing wear problems over 30w?
 

Sure you do. Your 90 deg F startup temp is a world of difference from
the 100 -110 deg C operating oil temps, in terms of pumpability.


"LaBomba182" wrote in message
...
| Subject: 40W oil causing wear problems over 30w?
| From:
|
| Interestingly enough, 15-40W is spec correct for both the mains and
genset.
|
| 15-40W lubes a cold engine sooner upon cold engine start up than 30W
or 40W
| oil
| does.
|
| You can hear the difference.
|
| While that maybe true, in this case we will not be seeing low ambient
temps.
| And if we were to, we would change the weight of the oil.
|
| Capt. Bill

40W oil causing wear problems over 30w?
 

So which is easier on my engine, short period at high speed and load, or
long period at low load and speed?

Capt. jeff

Jax
 

Eeeewww!! Gross! Sorry, but I've been married for 13 years and
wouldn't touch Jax with Saddam Hussein's crab-infested right palm. I
have the page about him because he used to habitually troll on a
message board I was on, and his assholery became so legendary that he
made mention on our "in jokes" page he
http://fathom.org/teemingmillions/injokes.html ...From which he ended
up getting his very own page. I keep it up now because it makes me
happy that it ****es him off so much.

As it's clearly obvious he hasn't changed one iota I feel no remorse
whatsoever for maintaining the page.

rhys wrote in message . ..
Geez, did this woman dump JAX for non-performance issues or what.
Wait, here's a link at the bottom of the page....

^,,^ OpalCat
http://www.opalcat.com

40W oil causing wear problems over 30w?
 

Oils most assuredly do NOT get thicker with increasing temp,

agreed, even though I personally saw a man billed as a "training director" for
a large importer of diesel engines say that very thing. He got seriously
****ed when I asked him later via email if you had pulled a dipstick on a warm
engine any time in the last 40 years.