Blowby. Oil in filter, again?
 

Hey,
me again. I was curious to see if anyone had blowby like my brother's
XJ. We went through the procedures listed on off-road.com for changing the
PCV valves, all of the plastic parts, and so on. My brother even put a
brand new valve cover on there. But, he still has the blowby and is getting
about 12 miles to the gallon at the moment. Is there anything else to
check. The engine does have 160 K miles on it, but everything inside seems
to be extremely clean.
TIA
Scott

89 XJ 4.0

Re: Blowby. Oil in filter, again?
 

Assuming you followed all the procedures correctly, it is time to perform a
compression test.

Earle

"Scott" <scott@tatewise.com> wrote in message
news:cY6Oa.69422$1e.39089@fed1read04...
> Hey,
> me again. I was curious to see if anyone had blowby like my brother's
> XJ. We went through the procedures listed on off-road.com for changing
the
> PCV valves, all of the plastic parts, and so on. My brother even put a
> brand new valve cover on there. But, he still has the blowby and is
getting
> about 12 miles to the gallon at the moment. Is there anything else to
> check. The engine does have 160 K miles on it, but everything inside
seems
> to be extremely clean.
> TIA
> Scott
>
> 89 XJ 4.0
>
>

Re: Blowby. Oil in filter, again?
 

Time for a compression check....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Scott wrote:
>
> Hey,
> me again. I was curious to see if anyone had blowby like my brother's
> XJ. We went through the procedures listed on off-road.com for changing the
> PCV valves, all of the plastic parts, and so on. My brother even put a
> brand new valve cover on there. But, he still has the blowby and is getting
> about 12 miles to the gallon at the moment. Is there anything else to
> check. The engine does have 160 K miles on it, but everything inside seems
> to be extremely clean.
> TIA
> Scott
>
> 89 XJ 4.0

Re: Blowby. Oil in filter, again?
 

Bill,
you think the PCV is clogged? I'll give that a try.
Thx.
Scott

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:3F090331.199F5AB0@cox.net...
> Hi Scott,
> Take the Positive Crankcase Valve off and blow in the hose with the
> throttle plate open, you shouldn't feel any back pressure. If you do
> take a drill bit and hand ream where it usually clogs with carbon at the
> manifold orifice like connection.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Scott wrote:
> >
> > Hey,
> > me again. I was curious to see if anyone had blowby like my
brother's
> > XJ. We went through the procedures listed on off-road.com for changing
the
> > PCV valves, all of the plastic parts, and so on. My brother even put a
> > brand new valve cover on there. But, he still has the blowby and is
getting
> > about 12 miles to the gallon at the moment. Is there anything else to
> > check. The engine does have 160 K miles on it, but everything inside
seems
> > to be extremely clean.
> > TIA
> > Scott
> >
> > 89 XJ 4.0

Re: Blowby. Oil in filter, again?
 

Cheap, easy, fast. It will take a load off your mind too if it comes up
good.

Earle

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3F098CE2.52C65F6B@sympatico.ca...
> Time for a compression check....
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Scott wrote:
> >
> > Hey,
> > me again. I was curious to see if anyone had blowby like my
brother's
> > XJ. We went through the procedures listed on off-road.com for changing
the
> > PCV valves, all of the plastic parts, and so on. My brother even put a
> > brand new valve cover on there. But, he still has the blowby and is
getting
> > about 12 miles to the gallon at the moment. Is there anything else to
> > check. The engine does have 160 K miles on it, but everything inside
seems
> > to be extremely clean.
> > TIA
> > Scott
> >
> > 89 XJ 4.0

Re: Blowby. Oil in filter, again?
 

I'm not sure how the 89s are set up, but check your charcoal cannister if
it's anywhere in the PCV loop.
--
Michael White "To protect people from the effects of folly is to
fill the world with fools." -Herbert Spencer, 1891

Scott (scott@tatewise.com) wrote on Sunday 06 July 2003 11:48 pm:

> Hey,
> me again. I was curious to see if anyone had blowby like my brother's
> XJ. We went through the procedures listed on off-road.com for changing
> the
> PCV valves, all of the plastic parts, and so on. My brother even put a
> brand new valve cover on there. But, he still has the blowby and is
> getting
> about 12 miles to the gallon at the moment. Is there anything else to
> check. The engine does have 160 K miles on it, but everything inside
> seems to be extremely clean.
> TIA
> Scott
>
> 89 XJ 4.0