Rebuilding head. Need advice on parts.
07 LSJ with 65k miles.
long story short the intake vavles got bent after bumping the starter for about a second. When switching to the new style tensioner, don't let anyone tell you to just remove the old one and pop the new one in. Removing the tensioner gives the chain enough slack to droop off the crank sprocket somewhat. You need to remove the valve cover and use a zip tie to keep tension on the chain BEFORE you remove the old tensioner, otherwise it will skip timing. You should also crank the engine over by hand afterwards. People who have had success without doing this were extremely lucky. I shouldn't have listened to a lot of the posts made here on this subject. This is what I plan on replacing aside from valves and valve guides. Here is what I know I will definitely replace: head gasket kit Cylinder Head Gasket Kit Saturn Ion 2.0 LSJ 2004 - 2007 12601810 x16 lifters Ecotec Lifter/ Adjuster 24100005 replaced by 12572638 camshaft position sensor housing seal - 12597644 front cam seal - 12578146 crank pulley bolt Ecotec Balancer Bolt 11589123 timing chain Chain LSJ Camshaft Timing 24461834 Front engine cover gasket Ecotec Front Cover Gasket 24435052 front main seal Ecotec Timing Cover Seal 12584041 Not sure if these items should be replaced: valve keepers? Ecotec Valve Keepers (Key) 90354648 valve cover gasket? Ecotec LSJ 2.0 Valve Cover Gasket 90537687 Also let me know if I missed anything. Thanks! |
You don't need to replace the blower gasket unless it looks damaged. If you're like me, and like new gaskets when building something it wont hurt to replace it.
While you're at it, I would install upgraded valvesprings as well. If I was in your position, I would. Might pay off in the future if you ever decide to increase your rev limiter. |
I have no intentions of making more than stock power without drivetrain modifications, and I don't plan on beefing up the trans. Have there been any problems with the stock springs on stock engines?
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Originally Posted by SaberD
(Post 6368462)
I have no intentions of making more than stock power without drivetrain modifications, and I don't plan on beefing up the trans. Have there been any problems with the stock springs on stock engines?
Just a suggestion. I wasn't sure if you were modded or not. |
if the chain slipped while doing a tensioner swap your chain is worn out and needs replaced
you have lots of things you dont need in you list either |
Originally Posted by mrbelvedere
(Post 6368553)
if the chain slipped while doing a tensioner swap your chain is worn out and needs replaced
you have lots of things you dont need in you list either |
Need
head gasket kit Cylinder Head Gasket Kit Saturn Ion 2.0 LSJ 2004 - 2007 12601810 dont need unless yours are giving you problems x16 lifters Ecotec Lifter/ Adjuster 24100005 replaced by 12572638 dont need camshaft position sensor housing seal - 12597644 wtf is this dont need front cam seal - 12578146 need crank pulley bolt Ecotec Balancer Bolt 11589123 need timing chain Chain LSJ Camshaft Timing 24461834 dont need stocker os o-ringed Front engine cover gasket Ecotec Front Cover Gasket 24435052 dont need relube reuse front main seal Ecotec Timing Cover Seal 12584041 Not sure if these items should be replaced: dont need valve keepers? Ecotec Valve Keepers (Key) 90354648 need valve cover gasket? Ecotec LSJ 2.0 Valve Cover Gasket 90537687 |
Originally Posted by mrbelvedere
(Post 6371688)
wtf is this dont need
front cam seal - 12578146 the service manual says to replace a lot of these things you said I don't need to replace, hence the reason why i made this thread. thanks for your input. |
Originally Posted by SaberD
(Post 6371744)
this is the flat seal that goes on the intake cam end cap.
the service manual says to replace a lot of these things you said I don't need to replace, hence the reason why i made this thread. thanks for your input. |
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