rocker arm question
Thread Starter
Seasoned Member
Joined: Sep 2008
Posts: 459
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From: ny (not the city)
Year: 1991
Model: Cherokee
Engine: 4.0
put the head back on my donor engine and put the rods and rocker arms and all that back on.
After I touqred everything I checked the movement of the arm with my hand and i noticed some off them move and some are soild.
Is this because the position of the pistons and everything or is something wrong?
After I touqred everything I checked the movement of the arm with my hand and i noticed some off them move and some are soild.
Is this because the position of the pistons and everything or is something wrong?
CF Veteran
Joined: Sep 2010
Posts: 4,968
Likes: 0
From: Salt Lake City, UT
Year: 2000
Model: Cherokee
Engine: 4.0L
it has to do with the cam position. with the lobe up it will open the valve (put pressure on the rocker) with the lobe down or in "relaxed state" it will release pressure and allow the valve to fully close and not hold tension on the rocker arm. if you torqued them all and the Timing gears are on then spin it over and make sure they all move.
sounds normal to me.
sounds normal to me.
Thread Starter
Seasoned Member
Joined: Sep 2008
Posts: 459
Likes: 0
From: ny (not the city)
Year: 1991
Model: Cherokee
Engine: 4.0
i didnt check before i took it apart. once everything was apart it all looked good. I did install new lifters but thats cause i rolled the engine on the stand before i took them out and they all fell out.
I mean theres really no way to put that stuff on wrong, i dont think.
I mean theres really no way to put that stuff on wrong, i dont think.
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
It's the position of the cam shaft lobes....some are opening the valves (more pressure on the rocker arms), some are allowing valves to close (less pressure.
Thread Starter
Seasoned Member
Joined: Sep 2008
Posts: 459
Likes: 0
From: ny (not the city)
Year: 1991
Model: Cherokee
Engine: 4.0
it has to do with the cam position. with the lobe up it will open the valve (put pressure on the rocker) with the lobe down or in "relaxed state" it will release pressure and allow the valve to fully close and not hold tension on the rocker arm. if you torqued them all and the Timing gears are on then spin it over and make sure they all move.
sounds normal to me.
sounds normal to me.
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Thread Starter
Seasoned Member
Joined: Sep 2008
Posts: 459
Likes: 0
From: ny (not the city)
Year: 1991
Model: Cherokee
Engine: 4.0
Thread Starter
Seasoned Member
Joined: Sep 2008
Posts: 459
Likes: 0
From: ny (not the city)
Year: 1991
Model: Cherokee
Engine: 4.0
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