Grit on oil drain plug
 

Hello, I bought a 98 GC about a week ago , only 29K and looks like new
and runs great. I changed the oil today and noticed a 6 or 7 small (
fraction of a pinhead ) pieces of metallic grit on the drain plug.
Should I be concerned?

Thanks, JK

Re: Grit on oil drain plug
 

JRK58 did pass the time by typing:
> Hello, I bought a 98 GC about a week ago , only 29K and looks like new
> and runs great. I changed the oil today and noticed a 6 or 7 small (
> fraction of a pinhead ) pieces of metallic grit on the drain plug.
> Should I be concerned?

I wouldn't be. A few bits of metal are usually in any oil pan. Depends
on the casting or if small burrs have come loose.

--
DougW

Re: Grit on oil drain plug
 

JRK58 did pass the time by typing:
> Hello, I bought a 98 GC about a week ago , only 29K and looks like new
> and runs great. I changed the oil today and noticed a 6 or 7 small (
> fraction of a pinhead ) pieces of metallic grit on the drain plug.
> Should I be concerned?

I wouldn't be. A few bits of metal are usually in any oil pan. Depends
on the casting or if small burrs have come loose.

--
DougW

Re: Grit on oil drain plug
 

JRK58 did pass the time by typing:
> Hello, I bought a 98 GC about a week ago , only 29K and looks like new
> and runs great. I changed the oil today and noticed a 6 or 7 small (
> fraction of a pinhead ) pieces of metallic grit on the drain plug.
> Should I be concerned?

I wouldn't be. A few bits of metal are usually in any oil pan. Depends
on the casting or if small burrs have come loose.

--
DougW

Re: Grit on oil drain plug
 

Thanks for the reply Doug, I was thinking bits of casting. They are
black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

Thanks for the reply Doug, I was thinking bits of casting. They are
black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

Thanks for the reply Doug, I was thinking bits of casting. They are
black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

No. What you should really worry about is the non-ferrous metal used in the
crank bearings. That is soft and non-magnetic, and you won't know that it
is gone, until it is too late. ;^)

Earle

<JRK58@MSN.COM> wrote in message
news:1134522780.250243.188140@g44g2000cwa.googlegr oups.com...
> Hello, I bought a 98 GC about a week ago , only 29K and looks like new
> and runs great. I changed the oil today and noticed a 6 or 7 small (
> fraction of a pinhead ) pieces of metallic grit on the drain plug.
> Should I be concerned?
>
> Thanks, JK
>

Re: Grit on oil drain plug
 

No. What you should really worry about is the non-ferrous metal used in the
crank bearings. That is soft and non-magnetic, and you won't know that it
is gone, until it is too late. ;^)

Earle

<JRK58@MSN.COM> wrote in message
news:1134522780.250243.188140@g44g2000cwa.googlegr oups.com...
> Hello, I bought a 98 GC about a week ago , only 29K and looks like new
> and runs great. I changed the oil today and noticed a 6 or 7 small (
> fraction of a pinhead ) pieces of metallic grit on the drain plug.
> Should I be concerned?
>
> Thanks, JK
>

Re: Grit on oil drain plug
 

No. What you should really worry about is the non-ferrous metal used in the
crank bearings. That is soft and non-magnetic, and you won't know that it
is gone, until it is too late. ;^)

Earle

<JRK58@MSN.COM> wrote in message
news:1134522780.250243.188140@g44g2000cwa.googlegr oups.com...
> Hello, I bought a 98 GC about a week ago , only 29K and looks like new
> and runs great. I changed the oil today and noticed a 6 or 7 small (
> fraction of a pinhead ) pieces of metallic grit on the drain plug.
> Should I be concerned?
>
> Thanks, JK
>

Re: Grit on oil drain plug
 

Might buy a magnetic plug and see what it picks up next time. I
surely wouldn't plan any trips for it, until you know it's not coming
apart.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

JRK58@MSN.COM wrote:
>
> Thanks for the reply Doug, I was thinking bits of casting. They are
> black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

Might buy a magnetic plug and see what it picks up next time. I
surely wouldn't plan any trips for it, until you know it's not coming
apart.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

JRK58@MSN.COM wrote:
>
> Thanks for the reply Doug, I was thinking bits of casting. They are
> black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

Might buy a magnetic plug and see what it picks up next time. I
surely wouldn't plan any trips for it, until you know it's not coming
apart.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

JRK58@MSN.COM wrote:
>
> Thanks for the reply Doug, I was thinking bits of casting. They are
> black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

That likely was a magnetic oil bolt Bill.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)

"L.W.(ßill) ------ III" wrote:
>
> Might buy a magnetic plug and see what it picks up next time. I
> surely wouldn't plan any trips for it, until you know it's not coming
> apart.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> JRK58@MSN.COM wrote:
> >
> > Thanks for the reply Doug, I was thinking bits of casting. They are
> > black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

That likely was a magnetic oil bolt Bill.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)

"L.W.(ßill) ------ III" wrote:
>
> Might buy a magnetic plug and see what it picks up next time. I
> surely wouldn't plan any trips for it, until you know it's not coming
> apart.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> JRK58@MSN.COM wrote:
> >
> > Thanks for the reply Doug, I was thinking bits of casting. They are
> > black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

That likely was a magnetic oil bolt Bill.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)

"L.W.(ßill) ------ III" wrote:
>
> Might buy a magnetic plug and see what it picks up next time. I
> surely wouldn't plan any trips for it, until you know it's not coming
> apart.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> JRK58@MSN.COM wrote:
> >
> > Thanks for the reply Doug, I was thinking bits of casting. They are
> > black with no shine under a magnifying glass.

Re: Grit on oil drain plug
 

It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
few weeks which is one of the reasons I bought it. I did notice a
faintly audible knock for a few minutes this morning when I first
started it up, I could only hear it when I was inside with the doors
shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
miles it looks new ( stored in heated garage) and has the Z package,
5.2. I guess it's still an ok deal even if I have to pay a few K for a
rebuild but I sure hope I don't have to.

J Kennedy

Re: Grit on oil drain plug
 

It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
few weeks which is one of the reasons I bought it. I did notice a
faintly audible knock for a few minutes this morning when I first
started it up, I could only hear it when I was inside with the doors
shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
miles it looks new ( stored in heated garage) and has the Z package,
5.2. I guess it's still an ok deal even if I have to pay a few K for a
rebuild but I sure hope I don't have to.

J Kennedy

Re: Grit on oil drain plug
 

It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
few weeks which is one of the reasons I bought it. I did notice a
faintly audible knock for a few minutes this morning when I first
started it up, I could only hear it when I was inside with the doors
shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
miles it looks new ( stored in heated garage) and has the Z package,
5.2. I guess it's still an ok deal even if I have to pay a few K for a
rebuild but I sure hope I don't have to.

J Kennedy

Re: Grit on oil drain plug
 

The stuff that wears out isn't magnetic....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)

JRK58@MSN.COM wrote:
>
> It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
> few weeks which is one of the reasons I bought it. I did notice a
> faintly audible knock for a few minutes this morning when I first
> started it up, I could only hear it when I was inside with the doors
> shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
> miles it looks new ( stored in heated garage) and has the Z package,
> 5.2. I guess it's still an ok deal even if I have to pay a few K for a
> rebuild but I sure hope I don't have to.
>
> J Kennedy

Re: Grit on oil drain plug
 

The stuff that wears out isn't magnetic....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)

JRK58@MSN.COM wrote:
>
> It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
> few weeks which is one of the reasons I bought it. I did notice a
> faintly audible knock for a few minutes this morning when I first
> started it up, I could only hear it when I was inside with the doors
> shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
> miles it looks new ( stored in heated garage) and has the Z package,
> 5.2. I guess it's still an ok deal even if I have to pay a few K for a
> rebuild but I sure hope I don't have to.
>
> J Kennedy

Re: Grit on oil drain plug
 

The stuff that wears out isn't magnetic....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)

JRK58@MSN.COM wrote:
>
> It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
> few weeks which is one of the reasons I bought it. I did notice a
> faintly audible knock for a few minutes this morning when I first
> started it up, I could only hear it when I was inside with the doors
> shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
> miles it looks new ( stored in heated garage) and has the Z package,
> 5.2. I guess it's still an ok deal even if I have to pay a few K for a
> rebuild but I sure hope I don't have to.
>
> J Kennedy

Re: Grit on oil drain plug
 

On 14 Dec 2005 18:02:41 -0800, JRK58@MSN.COM wrote:

>It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
>few weeks which is one of the reasons I bought it. I did notice a
>faintly audible knock for a few minutes this morning when I first
>started it up, I could only hear it when I was inside with the doors
>shut. I couldn't hear it with the hood lifted.

Not unusual, and generally nothing to worry about.

> I paid 9500.00, 29K
>miles it looks new ( stored in heated garage) and has the Z package,
>5.2. I guess it's still an ok deal even if I have to pay a few K for a
>rebuild but I sure hope I don't have to.
>
>J Kennedy

Re: Grit on oil drain plug
 

On 14 Dec 2005 18:02:41 -0800, JRK58@MSN.COM wrote:

>It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
>few weeks which is one of the reasons I bought it. I did notice a
>faintly audible knock for a few minutes this morning when I first
>started it up, I could only hear it when I was inside with the doors
>shut. I couldn't hear it with the hood lifted.

Not unusual, and generally nothing to worry about.

> I paid 9500.00, 29K
>miles it looks new ( stored in heated garage) and has the Z package,
>5.2. I guess it's still an ok deal even if I have to pay a few K for a
>rebuild but I sure hope I don't have to.
>
>J Kennedy

Re: Grit on oil drain plug
 

On 14 Dec 2005 18:02:41 -0800, JRK58@MSN.COM wrote:

>It is a magnetic bolt, I was planning on a trip ( 700 miles RT) in a
>few weeks which is one of the reasons I bought it. I did notice a
>faintly audible knock for a few minutes this morning when I first
>started it up, I could only hear it when I was inside with the doors
>shut. I couldn't hear it with the hood lifted.

Not unusual, and generally nothing to worry about.

> I paid 9500.00, 29K
>miles it looks new ( stored in heated garage) and has the Z package,
>5.2. I guess it's still an ok deal even if I have to pay a few K for a
>rebuild but I sure hope I don't have to.
>
>J Kennedy

Re: Grit on oil drain plug
 

On 14 Dec 2005 18:02:41 -0800, JRK58@MSN.COM wrote:

>It is a magnetic bolt,

Then I sure wouldn't worry about it, unless the oil was still clear
from a recent oil change. If it was about due for an oil change, then
that sounds pretty good.

Dan
> I was planning on a trip ( 700 miles RT) in a
>few weeks which is one of the reasons I bought it. I did notice a
>faintly audible knock for a few minutes this morning when I first
>started it up, I could only hear it when I was inside with the doors
>shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
>miles it looks new ( stored in heated garage) and has the Z package,
>5.2. I guess it's still an ok deal even if I have to pay a few K for a
>rebuild but I sure hope I don't have to.
>
>J Kennedy

Re: Grit on oil drain plug
 

On 14 Dec 2005 18:02:41 -0800, JRK58@MSN.COM wrote:

>It is a magnetic bolt,

Then I sure wouldn't worry about it, unless the oil was still clear
from a recent oil change. If it was about due for an oil change, then
that sounds pretty good.

Dan
> I was planning on a trip ( 700 miles RT) in a
>few weeks which is one of the reasons I bought it. I did notice a
>faintly audible knock for a few minutes this morning when I first
>started it up, I could only hear it when I was inside with the doors
>shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
>miles it looks new ( stored in heated garage) and has the Z package,
>5.2. I guess it's still an ok deal even if I have to pay a few K for a
>rebuild but I sure hope I don't have to.
>
>J Kennedy

Re: Grit on oil drain plug
 

On 14 Dec 2005 18:02:41 -0800, JRK58@MSN.COM wrote:

>It is a magnetic bolt,

Then I sure wouldn't worry about it, unless the oil was still clear
from a recent oil change. If it was about due for an oil change, then
that sounds pretty good.

Dan
> I was planning on a trip ( 700 miles RT) in a
>few weeks which is one of the reasons I bought it. I did notice a
>faintly audible knock for a few minutes this morning when I first
>started it up, I could only hear it when I was inside with the doors
>shut. I couldn't hear it with the hood lifted. I paid 9500.00, 29K
>miles it looks new ( stored in heated garage) and has the Z package,
>5.2. I guess it's still an ok deal even if I have to pay a few K for a
>rebuild but I sure hope I don't have to.
>
>J Kennedy

Re: Grit on oil drain plug
 

Metallic bits in the oil pan is very unusual. Usually I explode an
engine before I see any.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Hootowl wrote:
>
> Not unusual, and generally nothing to worry about.

Re: Grit on oil drain plug
 

Metallic bits in the oil pan is very unusual. Usually I explode an
engine before I see any.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Hootowl wrote:
>
> Not unusual, and generally nothing to worry about.

Re: Grit on oil drain plug
 

Metallic bits in the oil pan is very unusual. Usually I explode an
engine before I see any.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Hootowl wrote:
>
> Not unusual, and generally nothing to worry about.

Re: Grit on oil drain plug
 

Well it sure hasn't exploded yet. It runs very smooth, oil pressure is
38-42 at idle and 50+ cruising. I haven't heard the faint knock since
this first time. I bought an auto stethoscope, parked it on ramps last
night and crawled underneath it this morning. It was in the 20's and I
didn't hear anything other than a nice whurrr. I probed everywhere
underneath. Topside sounded good also.

J Kennedy

Re: Grit on oil drain plug
 

Well it sure hasn't exploded yet. It runs very smooth, oil pressure is
38-42 at idle and 50+ cruising. I haven't heard the faint knock since
this first time. I bought an auto stethoscope, parked it on ramps last
night and crawled underneath it this morning. It was in the 20's and I
didn't hear anything other than a nice whurrr. I probed everywhere
underneath. Topside sounded good also.

J Kennedy

Re: Grit on oil drain plug
 

Well it sure hasn't exploded yet. It runs very smooth, oil pressure is
38-42 at idle and 50+ cruising. I haven't heard the faint knock since
this first time. I bought an auto stethoscope, parked it on ramps last
night and crawled underneath it this morning. It was in the 20's and I
didn't hear anything other than a nice whurrr. I probed everywhere
underneath. Topside sounded good also.

J Kennedy

Re: Grit on oil drain plug
 

JK,
Hopefully the grit was a non sequitur.
I'd consider changing the oil in a short span and checking for grit
again. I'd also treat your engine (spend a few extra bucks) to a real
oil filter like a Mobil One.
Steve in Michigan

Re: Grit on oil drain plug
 

JK,
Hopefully the grit was a non sequitur.
I'd consider changing the oil in a short span and checking for grit
again. I'd also treat your engine (spend a few extra bucks) to a real
oil filter like a Mobil One.
Steve in Michigan

Re: Grit on oil drain plug
 

JK,
Hopefully the grit was a non sequitur.
I'd consider changing the oil in a short span and checking for grit
again. I'd also treat your engine (spend a few extra bucks) to a real
oil filter like a Mobil One.
Steve in Michigan

Re: Grit on oil drain plug
 

popeyeball wrote:
> JK,
> Hopefully the grit was a non sequitur.
> I'd consider changing the oil in a short span and checking for grit
> again. I'd also treat your engine (spend a few extra bucks) to a real
> oil filter like a Mobil One.
> Steve in Michigan

I am going to drain into a clean jug with a magnet taped to the bottom.
I don't want to waste 30 bucks worth of Mobil one 15-50 with less than
a hundred miles on it. I did use a MB1 filter on the last change. I
heard a very faint knock again this morning but I didn't have the
stethoscope on hand. I'm hoping it's nothin but I hate having doubts.
If it's a wrist pin or bearing can it be repaired from the bottom? The
rig only has 29K and runs sweet, I think a complete rebuild would be a
waste. Thanks for the reply.

J Kennedy

Re: Grit on oil drain plug
 

popeyeball wrote:
> JK,
> Hopefully the grit was a non sequitur.
> I'd consider changing the oil in a short span and checking for grit
> again. I'd also treat your engine (spend a few extra bucks) to a real
> oil filter like a Mobil One.
> Steve in Michigan

I am going to drain into a clean jug with a magnet taped to the bottom.
I don't want to waste 30 bucks worth of Mobil one 15-50 with less than
a hundred miles on it. I did use a MB1 filter on the last change. I
heard a very faint knock again this morning but I didn't have the
stethoscope on hand. I'm hoping it's nothin but I hate having doubts.
If it's a wrist pin or bearing can it be repaired from the bottom? The
rig only has 29K and runs sweet, I think a complete rebuild would be a
waste. Thanks for the reply.

J Kennedy

Re: Grit on oil drain plug
 

popeyeball wrote:
> JK,
> Hopefully the grit was a non sequitur.
> I'd consider changing the oil in a short span and checking for grit
> again. I'd also treat your engine (spend a few extra bucks) to a real
> oil filter like a Mobil One.
> Steve in Michigan

I am going to drain into a clean jug with a magnet taped to the bottom.
I don't want to waste 30 bucks worth of Mobil one 15-50 with less than
a hundred miles on it. I did use a MB1 filter on the last change. I
heard a very faint knock again this morning but I didn't have the
stethoscope on hand. I'm hoping it's nothin but I hate having doubts.
If it's a wrist pin or bearing can it be repaired from the bottom? The
rig only has 29K and runs sweet, I think a complete rebuild would be a
waste. Thanks for the reply.

J Kennedy