Re: Removing the head on a 4.0 Wrangler

your have a 8 -80 emissions warranty on the cat and i have replace many
lifters
in the 4.0 for noise and the head has to come off
look carefully at the raditor seams  for coolant leakage

Dennis wrote:

> "Mike Romain" <romainm@[EMAIL PROTECTED]
> wrote in message
> news:47bf6805$0$5248$9a6e19ea@[EMAIL PROTECTED]
> > Dennis wrote:
> >> Hi, I have a 2001 Wrangler 4.0. I need  to replace the valve lifters.
> >> Can some one tell me if the head can be removed with the intake and
> >> exhaust manifolds attached. or do they have to come off first? It
looks
> >> like a b_ _ ch to remove them in the vehicle.
> >>
> >> Thanks,
> >> Dennis
> >
> > I prefer to leave them on unless I am changing the gasket.
> >
> > Your lifters are bad?  That is unusual.  Be sure you just don't have
on a
> > bad filter like those Frams eh.  Their drainback valve is no good so
it
> > makes the lifters sound 'really' bad on cold starts, 'really' bad.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 'New' frame in the works for '08.  Some Canadian Bush Trip and Build
> > Photos: http://mikeromainjeeptrips.shutterfly.com
>
> Thanks Mike for the information,
> I was using Fram filters and the lifters would clatter on hot or cold
start
> ups. I now use AC Delco or Mobile One filters.  The lifters still
clatter
> but only on cold starts and they
> quiet down after a couple of seconds. I figure if they clatter at all
this
> can't be good and it will just get worse so that's why I thought that
they
> should be replaced.
>
> I also suspect it could have a bad head gasket. It's using about a quart
of
> anti- freeze a month. There are no obvious leaks and I can't figure out
> where else the anti-freeze is going. There are no other clues of a bad
head
> gasket.
> We bought the Jeep new so I know that it has never over heated which
makes
> it hard to believe that the head gasket could be bad.
> But where else could the anti-freeze be going except out the exhaust.
> Recently got a check engine light saying the cat. converter was bad.
>  I understand that coolant in the exhaust can cause the converters to
fail
> prematurely.
> If it is burning coolant then I need to get it fixed before it destroys
> another catalytic converter. This vehicle only has 70,000 miles on it.
> Shouldn't be having these problems.
> Any thoughts or guidance would be appreciated. ( Please don't say buy a
> Ford, my wife loves her Jeep)
>
> Thanks again,
> Dennis
>
>