Jeeps Canada - Jeep Forums - #2 Piston Pics - Got it out!!! Need feedback

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Re: #2 Piston Pics - Got it out!!! Need feedback

That picture is why I asked for another one. That cylinder looks like a
mirror in there, compared to what I can see of the other ones. I'm just
wondering if the crosshatch is gone, which it looks like it is. If Bill O.
could take a pic with the camera as close to the engine as possible, and
then point it at the cylinder wall, it might show us something. My concern
is if the cylinders were ever properly honed, or did someone use a really
fine honing stone with chrome or cast rings. Also (to Bill O.), can you move
the rings at all in the oil groove? They look to have a lot of crud in them.

I would recommend that if you ring and bearing this thing, that you take the
rods in and have them checked to see if the bearing bore is round. If the
engine is supposed to have low miles since its rebuild, then based on the
bearing condition, I would suspect an out of round rod bore.

Chris

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:404123EA.F7DFD7F2@cox.net...
> Hi Chris,
> I would say it would be really, really difficult for us to be able
> to see any groves or cracks or scuffing, judging by one of Bill's other
> pictures: http://members.bigvalley.net/wuji/je.../cylinder3.jpg
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> c wrote:
> >
> > Bill, can you get a picture of the cylinder itself so that we can see
the
> > finish on it?
> >
> > Chris

Re: #2 Piston Pics - Got it out!!! Need feedback

gas prices as high as they are, do you really want to be spraying it on your
pistons? ;-)
-Brian

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:4041262D.B04290A5@cox.net...
: Still lots of elbow grease, Real Jeepers us gasoline. ;-)
: God Bless America, ßill O|||||||O
: mailto:-------------------- http://www.----------.com/
:
: DougW wrote:
: >
: > I've found this site to be interesting.
: > http://home.epix.net/~jlartin/decarboningindex.html
: > YMMV.

Re: #2 Piston Pics - Got it out!!! Need feedback

Here you go Chris/All,

http://members.bigvalley.net/wuji/je...ylinder_2a.jpg
http://members.bigvalley.net/wuji/je...ylinder_2b.jpg
http://members.bigvalley.net/wuji/je...ylinder_2c.jpg

I put some paper towel to try to get a good pic.

I run my fingers inside the cylinder an am not picking up any nicks or rough
spots. Feels smooth as a baby's behind.

I see two "imprints" where the top two rings stop their upward ascent but
those are smooth as well. No ridge what so ever.

Bill

"c" <c@me.org> wrote in message
news:c590c.20158$QP.13366@twister.rdc-kc.rr.com...
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:c1qsom$1krk9u$1@ID-193866.news.uni-berlin.de...
> >
> > Got the piston out. Just tapped on the rod bolt a couple of times and
it
> > loosened up. Came right out of the cylinder, no ridge, no problem.
> >
> > Here are the pics. Any feedback on the condition of this piston or what
> the
> > pic might tell you would be appreciated.
> >
> > http://members.bigvalley.net/wuji/je.../piston_2a.jpg
> > http://members.bigvalley.net/wuji/je.../piston_2b.jpg
> > http://members.bigvalley.net/wuji/je...berrings2a.jpg
> >
> > Thanks,
> >
> >
> > Bill
> >
>
> Bill, can you get a picture of the cylinder itself so that we can see the
> finish on it?
>
> Chris
>
>

Re: #2 Piston Pics - Got it out!!! Need feedback

I took the rings off the cylinder but I could not move the oil ring around
at will. Should this ring float freely?

Also, I do not see the cross-hatch pattern that you are speaking of.

See the piston without rings:

http://members.bigvalley.net/wuji/je.../piston_2c.jpg
http://members.bigvalley.net/wuji/je.../piston_2d.jpg
http://members.bigvalley.net/wuji/je...s/rings_2a.jpg

The big question in all of this is do I want to continue to invest in this
engine. I found a 79 year 4.2L engine that has just been rebuilt that is
selling for 50.00 to 100.00. The problem is I can't contact the rebuilder
and confirm the bore or work that was done. The seller bought a package
which included the frame, engine, and tranny and he doesn't know alot about
jeep engines, mostly chevys. He didn't need the engine and that's why he's
selling. He looked inside the valve cover and he said it looks fantastic.
Clean like a rebuild. Definately not like a 79 year should. He's suppose
to be sending me pics tonight. The problem is it's in Utah which I could go
borrow a truck and pick it up then get someone to install it. Also, don't
know what's inside.

It's a hugh gamble as I might be buying a 50.00 to 100.00 anchor.

The plan would be to have it delivered to a machine shop/engine rebuilder to
have him check it out, put the 4.0L head on it and put it in the jeep.

Bill

"c" <c@me.org> wrote in message
news:IJ90c.20164$QP.8242@twister.rdc-kc.rr.com...
> That picture is why I asked for another one. That cylinder looks like a
> mirror in there, compared to what I can see of the other ones. I'm just
> wondering if the crosshatch is gone, which it looks like it is. If Bill O.
> could take a pic with the camera as close to the engine as possible, and
> then point it at the cylinder wall, it might show us something. My concern
> is if the cylinders were ever properly honed, or did someone use a really
> fine honing stone with chrome or cast rings. Also (to Bill O.), can you
move
> the rings at all in the oil groove? They look to have a lot of crud in
them.
>
> I would recommend that if you ring and bearing this thing, that you take
the
> rods in and have them checked to see if the bearing bore is round. If the
> engine is supposed to have low miles since its rebuild, then based on the
> bearing condition, I would suspect an out of round rod bore.
>
>
> Chris
>
>
> "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> news:404123EA.F7DFD7F2@cox.net...
> > Hi Chris,
> > I would say it would be really, really difficult for us to be able
> > to see any groves or cracks or scuffing, judging by one of Bill's other
> > pictures: http://members.bigvalley.net/wuji/je.../cylinder3.jpg
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > c wrote:
> > >
> > > Bill, can you get a picture of the cylinder itself so that we can see
> the
> > > finish on it?
> > >
> > > Chris
>
>