I have a wrangler 4ltr with very noise valve springs (think this was a
known problem)

how easy are they to replace and does the head need to come off?

 

You can use something like venetian blind cord with a stick tied on one
end as a T handle to fill the cylinder through the plug hole, then turn
the crank so the piston comes up on the cord to hold the valves in place
and do it from the top. Leave the wood handle outside the engine. ;-)

Then you just need something to compress the springs. Most auto parts
places will loan tools around here so a spring compressor would be
handy. Basically a C-clamp vise grip is one type.

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

Mick Miller wrote:
>
> I have a wrangler 4ltr with very noise valve springs (think this was a
> known problem)
>
> how easy are they to replace and does the head need to come off?

 

You can use something like venetian blind cord with a stick tied on one
end as a T handle to fill the cylinder through the plug hole, then turn
the crank so the piston comes up on the cord to hold the valves in place
and do it from the top. Leave the wood handle outside the engine. ;-)

Then you just need something to compress the springs. Most auto parts
places will loan tools around here so a spring compressor would be
handy. Basically a C-clamp vise grip is one type.

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

Mick Miller wrote:
>
> I have a wrangler 4ltr with very noise valve springs (think this was a
> known problem)
>
> how easy are they to replace and does the head need to come off?

 

You can use something like venetian blind cord with a stick tied on one
end as a T handle to fill the cylinder through the plug hole, then turn
the crank so the piston comes up on the cord to hold the valves in place
and do it from the top. Leave the wood handle outside the engine. ;-)

Then you just need something to compress the springs. Most auto parts
places will loan tools around here so a spring compressor would be
handy. Basically a C-clamp vise grip is one type.

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

Mick Miller wrote:
>
> I have a wrangler 4ltr with very noise valve springs (think this was a
> known problem)
>
> how easy are they to replace and does the head need to come off?

 

The head does not need to come off, you cycle the engine so both valves are
closed in one cylinder. Hook up an air line to the cylinder put in about
125-150 psi, remove rocker arm for that cylinder, use a valve spring
compressor remove valve keepers and you are there. Also I would recommend
new valve stem oil seals while you are there.

--
HarryS My 2¢
"Mick Miller" <061268@hotmail.com> wrote in message
news:1hjm311gbbkbn8fc6c5obge4fna42m4bfu@4ax.com...
|
| I have a wrangler 4ltr with very noise valve springs (think this was a
| known problem)
|
| how easy are they to replace and does the head need to come off?
|
|

 

The head does not need to come off, you cycle the engine so both valves are
closed in one cylinder. Hook up an air line to the cylinder put in about
125-150 psi, remove rocker arm for that cylinder, use a valve spring
compressor remove valve keepers and you are there. Also I would recommend
new valve stem oil seals while you are there.

--
HarryS My 2¢
"Mick Miller" <061268@hotmail.com> wrote in message
news:1hjm311gbbkbn8fc6c5obge4fna42m4bfu@4ax.com...
|
| I have a wrangler 4ltr with very noise valve springs (think this was a
| known problem)
|
| how easy are they to replace and does the head need to come off?
|
|

 

The head does not need to come off, you cycle the engine so both valves are
closed in one cylinder. Hook up an air line to the cylinder put in about
125-150 psi, remove rocker arm for that cylinder, use a valve spring
compressor remove valve keepers and you are there. Also I would recommend
new valve stem oil seals while you are there.

--
HarryS My 2¢
"Mick Miller" <061268@hotmail.com> wrote in message
news:1hjm311gbbkbn8fc6c5obge4fna42m4bfu@4ax.com...
|
| I have a wrangler 4ltr with very noise valve springs (think this was a
| known problem)
|
| how easy are they to replace and does the head need to come off?
|
|

 

It's the lifters and poor maintenance are what make the noise, they
need the head to be pulled. Replacing the springs in place is no problem
with a spring compressor: http://www.mytoolstore.com/kd/3271.gif and an
air compressor and home made spark plug adapter to pressurize the
cylinder, so the valve won't fall in.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Mick Miller wrote:
>
> I have a wrangler 4ltr with very noise valve springs (think this was a
> known problem)
>
> how easy are they to replace and does the head need to come off?

 

It's the lifters and poor maintenance are what make the noise, they
need the head to be pulled. Replacing the springs in place is no problem
with a spring compressor: http://www.mytoolstore.com/kd/3271.gif and an
air compressor and home made spark plug adapter to pressurize the
cylinder, so the valve won't fall in.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Mick Miller wrote:
>
> I have a wrangler 4ltr with very noise valve springs (think this was a
> known problem)
>
> how easy are they to replace and does the head need to come off?

 

It's the lifters and poor maintenance are what make the noise, they
need the head to be pulled. Replacing the springs in place is no problem
with a spring compressor: http://www.mytoolstore.com/kd/3271.gif and an
air compressor and home made spark plug adapter to pressurize the
cylinder, so the valve won't fall in.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Mick Miller wrote:
>
> I have a wrangler 4ltr with very noise valve springs (think this was a
> known problem)
>
> how easy are they to replace and does the head need to come off?