Help! doing the 4.0 head swap on a 258!
#141
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
OK I think we aare in agreement that this horse has been beat to death.
I'll post my results.
Rich
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:2o06b2F5g8huU1@uni-berlin.de...
> Or use a flashlight to sight and seat them.
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:411AAC81.98A86BE3@***.net...
> > That happens every time I tighten them down without spinning them
> > as I tighten.
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > AllNighter wrote:
> > >
> > > and make sure that you have the pushrod seated in the lifter bore and
> > > not canted slightly off kilter where it is sitting on the raised edge
>
>
I'll post my results.
Rich
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:2o06b2F5g8huU1@uni-berlin.de...
> Or use a flashlight to sight and seat them.
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:411AAC81.98A86BE3@***.net...
> > That happens every time I tighten them down without spinning them
> > as I tighten.
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > AllNighter wrote:
> > >
> > > and make sure that you have the pushrod seated in the lifter bore and
> > > not canted slightly off kilter where it is sitting on the raised edge
>
>
#142
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
Don't think the 258 or 242 are interference engines.
--
Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ
"JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> When the valves hit the piston you better be 200% sure to check the
> timing so a simple "no" doesnt fix it
>
> Also, there are thicker metal headgaskets for sale that might work with
> the shortest pushrods. A friend of mine used them on his chevy engine to
> avoid using race gasoline. not the best fix but it might work for now.
>
> Johan
>
> Harris Family wrote:
> > no
> >
> > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> >
> >>
> >>Harris Family wrote:
> >>
> >>
> >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> >
> > you
> >
> >>>turn the crank to the 0degree mark. The air rush is the compression
> >
> > stroke
> >
> >>>bringing you to TDC.
> >>>
> >>
> >>This only works when the cam timing is correct.....and isnt that what
> >>were trying to find out ????
> >
> >
> >
--
Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ
"JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> When the valves hit the piston you better be 200% sure to check the
> timing so a simple "no" doesnt fix it
>
> Also, there are thicker metal headgaskets for sale that might work with
> the shortest pushrods. A friend of mine used them on his chevy engine to
> avoid using race gasoline. not the best fix but it might work for now.
>
> Johan
>
> Harris Family wrote:
> > no
> >
> > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> >
> >>
> >>Harris Family wrote:
> >>
> >>
> >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> >
> > you
> >
> >>>turn the crank to the 0degree mark. The air rush is the compression
> >
> > stroke
> >
> >>>bringing you to TDC.
> >>>
> >>
> >>This only works when the cam timing is correct.....and isnt that what
> >>were trying to find out ????
> >
> >
> >
#143
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
Don't think the 258 or 242 are interference engines.
--
Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ
"JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> When the valves hit the piston you better be 200% sure to check the
> timing so a simple "no" doesnt fix it
>
> Also, there are thicker metal headgaskets for sale that might work with
> the shortest pushrods. A friend of mine used them on his chevy engine to
> avoid using race gasoline. not the best fix but it might work for now.
>
> Johan
>
> Harris Family wrote:
> > no
> >
> > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> >
> >>
> >>Harris Family wrote:
> >>
> >>
> >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> >
> > you
> >
> >>>turn the crank to the 0degree mark. The air rush is the compression
> >
> > stroke
> >
> >>>bringing you to TDC.
> >>>
> >>
> >>This only works when the cam timing is correct.....and isnt that what
> >>were trying to find out ????
> >
> >
> >
--
Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ
"JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> When the valves hit the piston you better be 200% sure to check the
> timing so a simple "no" doesnt fix it
>
> Also, there are thicker metal headgaskets for sale that might work with
> the shortest pushrods. A friend of mine used them on his chevy engine to
> avoid using race gasoline. not the best fix but it might work for now.
>
> Johan
>
> Harris Family wrote:
> > no
> >
> > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> >
> >>
> >>Harris Family wrote:
> >>
> >>
> >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> >
> > you
> >
> >>>turn the crank to the 0degree mark. The air rush is the compression
> >
> > stroke
> >
> >>>bringing you to TDC.
> >>>
> >>
> >>This only works when the cam timing is correct.....and isnt that what
> >>were trying to find out ????
> >
> >
> >
#144
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
Don't think the 258 or 242 are interference engines.
--
Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ
"JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> When the valves hit the piston you better be 200% sure to check the
> timing so a simple "no" doesnt fix it
>
> Also, there are thicker metal headgaskets for sale that might work with
> the shortest pushrods. A friend of mine used them on his chevy engine to
> avoid using race gasoline. not the best fix but it might work for now.
>
> Johan
>
> Harris Family wrote:
> > no
> >
> > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> >
> >>
> >>Harris Family wrote:
> >>
> >>
> >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> >
> > you
> >
> >>>turn the crank to the 0degree mark. The air rush is the compression
> >
> > stroke
> >
> >>>bringing you to TDC.
> >>>
> >>
> >>This only works when the cam timing is correct.....and isnt that what
> >>were trying to find out ????
> >
> >
> >
--
Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ
"JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> When the valves hit the piston you better be 200% sure to check the
> timing so a simple "no" doesnt fix it
>
> Also, there are thicker metal headgaskets for sale that might work with
> the shortest pushrods. A friend of mine used them on his chevy engine to
> avoid using race gasoline. not the best fix but it might work for now.
>
> Johan
>
> Harris Family wrote:
> > no
> >
> > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> >
> >>
> >>Harris Family wrote:
> >>
> >>
> >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> >
> > you
> >
> >>>turn the crank to the 0degree mark. The air rush is the compression
> >
> > stroke
> >
> >>>bringing you to TDC.
> >>>
> >>
> >>This only works when the cam timing is correct.....and isnt that what
> >>were trying to find out ????
> >
> >
> >
#145
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
That's true in it's stock form, but both the head and deck have
been shaved, and if a mild half inch lift after market cam is a part of
the picture, they could now hit, they're headed right for each other in
a cross flow.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
been shaved, and if a mild half inch lift after market cam is a part of
the picture, they could now hit, they're headed right for each other in
a cross flow.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
#146
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
That's true in it's stock form, but both the head and deck have
been shaved, and if a mild half inch lift after market cam is a part of
the picture, they could now hit, they're headed right for each other in
a cross flow.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
been shaved, and if a mild half inch lift after market cam is a part of
the picture, they could now hit, they're headed right for each other in
a cross flow.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
#147
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
That's true in it's stock form, but both the head and deck have
been shaved, and if a mild half inch lift after market cam is a part of
the picture, they could now hit, they're headed right for each other in
a cross flow.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
been shaved, and if a mild half inch lift after market cam is a part of
the picture, they could now hit, they're headed right for each other in
a cross flow.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
#148
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
While that may be on a stock setup, when the valves are opening too far,
factory specs are tossed out the window.
I mean does anyone know by how many thousands the piston clears the
valve?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
> "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> > When the valves hit the piston you better be 200% sure to check the
> > timing so a simple "no" doesnt fix it
> >
> > Also, there are thicker metal headgaskets for sale that might work with
> > the shortest pushrods. A friend of mine used them on his chevy engine to
> > avoid using race gasoline. not the best fix but it might work for now.
> >
> > Johan
> >
> > Harris Family wrote:
> > > no
> > >
> > > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> > >
> > >>
> > >>Harris Family wrote:
> > >>
> > >>
> > >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> > >
> > > you
> > >
> > >>>turn the crank to the 0degree mark. The air rush is the compression
> > >
> > > stroke
> > >
> > >>>bringing you to TDC.
> > >>>
> > >>
> > >>This only works when the cam timing is correct.....and isnt that what
> > >>were trying to find out ????
> > >
> > >
> > >
factory specs are tossed out the window.
I mean does anyone know by how many thousands the piston clears the
valve?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
> "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> > When the valves hit the piston you better be 200% sure to check the
> > timing so a simple "no" doesnt fix it
> >
> > Also, there are thicker metal headgaskets for sale that might work with
> > the shortest pushrods. A friend of mine used them on his chevy engine to
> > avoid using race gasoline. not the best fix but it might work for now.
> >
> > Johan
> >
> > Harris Family wrote:
> > > no
> > >
> > > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> > >
> > >>
> > >>Harris Family wrote:
> > >>
> > >>
> > >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> > >
> > > you
> > >
> > >>>turn the crank to the 0degree mark. The air rush is the compression
> > >
> > > stroke
> > >
> > >>>bringing you to TDC.
> > >>>
> > >>
> > >>This only works when the cam timing is correct.....and isnt that what
> > >>were trying to find out ????
> > >
> > >
> > >
#149
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
While that may be on a stock setup, when the valves are opening too far,
factory specs are tossed out the window.
I mean does anyone know by how many thousands the piston clears the
valve?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
> "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> > When the valves hit the piston you better be 200% sure to check the
> > timing so a simple "no" doesnt fix it
> >
> > Also, there are thicker metal headgaskets for sale that might work with
> > the shortest pushrods. A friend of mine used them on his chevy engine to
> > avoid using race gasoline. not the best fix but it might work for now.
> >
> > Johan
> >
> > Harris Family wrote:
> > > no
> > >
> > > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> > >
> > >>
> > >>Harris Family wrote:
> > >>
> > >>
> > >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> > >
> > > you
> > >
> > >>>turn the crank to the 0degree mark. The air rush is the compression
> > >
> > > stroke
> > >
> > >>>bringing you to TDC.
> > >>>
> > >>
> > >>This only works when the cam timing is correct.....and isnt that what
> > >>were trying to find out ????
> > >
> > >
> > >
factory specs are tossed out the window.
I mean does anyone know by how many thousands the piston clears the
valve?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
> "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> > When the valves hit the piston you better be 200% sure to check the
> > timing so a simple "no" doesnt fix it
> >
> > Also, there are thicker metal headgaskets for sale that might work with
> > the shortest pushrods. A friend of mine used them on his chevy engine to
> > avoid using race gasoline. not the best fix but it might work for now.
> >
> > Johan
> >
> > Harris Family wrote:
> > > no
> > >
> > > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> > >
> > >>
> > >>Harris Family wrote:
> > >>
> > >>
> > >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> > >
> > > you
> > >
> > >>>turn the crank to the 0degree mark. The air rush is the compression
> > >
> > > stroke
> > >
> > >>>bringing you to TDC.
> > >>>
> > >>
> > >>This only works when the cam timing is correct.....and isnt that what
> > >>were trying to find out ????
> > >
> > >
> > >
#150
Guest
Posts: n/a
Re: Help! doing the 4.0 head swap on a 258!
While that may be on a stock setup, when the valves are opening too far,
factory specs are tossed out the window.
I mean does anyone know by how many thousands the piston clears the
valve?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
> "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> > When the valves hit the piston you better be 200% sure to check the
> > timing so a simple "no" doesnt fix it
> >
> > Also, there are thicker metal headgaskets for sale that might work with
> > the shortest pushrods. A friend of mine used them on his chevy engine to
> > avoid using race gasoline. not the best fix but it might work for now.
> >
> > Johan
> >
> > Harris Family wrote:
> > > no
> > >
> > > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> > >
> > >>
> > >>Harris Family wrote:
> > >>
> > >>
> > >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> > >
> > > you
> > >
> > >>>turn the crank to the 0degree mark. The air rush is the compression
> > >
> > > stroke
> > >
> > >>>bringing you to TDC.
> > >>>
> > >>
> > >>This only works when the cam timing is correct.....and isnt that what
> > >>were trying to find out ????
> > >
> > >
> > >
factory specs are tossed out the window.
I mean does anyone know by how many thousands the piston clears the
valve?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Dave Milne wrote:
>
> Don't think the 258 or 242 are interference engines.
>
> --
> Dave Milne, Scotland
> '91 Grand Wagoneer, '99 TJ
> "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> news:ETKSc.18965$cK.12251@newsread2.news.pas.earth link.net...
> > When the valves hit the piston you better be 200% sure to check the
> > timing so a simple "no" doesnt fix it
> >
> > Also, there are thicker metal headgaskets for sale that might work with
> > the shortest pushrods. A friend of mine used them on his chevy engine to
> > avoid using race gasoline. not the best fix but it might work for now.
> >
> > Johan
> >
> > Harris Family wrote:
> > > no
> > >
> > > "JohanB" <johanberkhoff.spam@earthlink.net> wrote in message
> > > news:TGBSc.18757$cK.12329@newsread2.news.pas.earth link.net...
> > >
> > >>
> > >>Harris Family wrote:
> > >>
> > >>
> > >>>Quite simply, Pull the spark plug from #1 and feel the air rush out as
> > >
> > > you
> > >
> > >>>turn the crank to the 0degree mark. The air rush is the compression
> > >
> > > stroke
> > >
> > >>>bringing you to TDC.
> > >>>
> > >>
> > >>This only works when the cam timing is correct.....and isnt that what
> > >>were trying to find out ????
> > >
> > >
> > >