i have 2007 acert 435hp tuned to 500hp 1850 qt .42 rears 22.5 11R tires 830.000 ml
i heard that about at this milege you need to change bolts/stunds an head that they go bad ??? should i do it ???
and also my turbos original, they do make like belt sound ,,, i wounder how long original turbos usually las ?
about C15 acert 07
Discussion in 'Trucks [ Eighteen Wheelers ]' started by PGALLC, May 2, 2015.
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I have 1.2mil on mine and its all original, but I kind of expect it could go any time. lots of cats out there that see mid million mile mark without much problem.
PGALLC Thanks this. -
do you have your cat for a while ?
cause couple people already told me about studs go bad an head ... and im worried if i should just change them or leave it -
I thought they had that all sorted out by 2007?
We have a 2005 Acert and I can tell you that you do NOT want to wait if you have an '05. That was a $13,000 touch up.
Maybe take it to a Cat house next time you get the valve lash set and ask them of your engine has had the upgrade.PGALLC Thanks this. -
The VVA / rocker arm studs are what you're referring to I believe. The early ACERT's had studs that would break and crash the overhead. Your '07 should have the newer style studs that proved to be durable. If you got 800k+ on it I wouldn't change them on a whim, but be VERY mindful of a sudden miss while running along with CEL. If it were me I would wait until you overhaul it and if you use a Platinum Kit they are included.
PGALLC Thanks this. -
I think the update on the vva studs went into effect with the nxs32162 and up. If yours is a nxs with a lower # than that I believe you don't have the new studs......
PGALLC Thanks this. -
pull one out when you do an overhead to see if you have the up dated ones. it will have a small shaft just below the head hex. looks like it was ground down.
PGALLC Thanks this. -
I have 840.xxx and I have mxs33478 not nsx... it's 2007, one of my buddy drove to 860.xxx when they broke... same year 2007, should I risks it wait when I'm gonna do overhaul to check them ??? Dose anybody know prise to change them? Thank you everyone
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