upon getting plugs changed ( tomorrow hopefully) started to think how long is the timing chain reliable? dealer cost (average)?
timing chain safe yet at 107,000 mi?
aarman
1 - 5 of 5 Posts
Ahhh, for as long as the engine runs.
A timing chain should never need changing.
I have almost 280K miles on one of my Hemi's...the other is at 170K.
I have a 4.7L that just hit 370K miles.
Its not like a timing belt that can break over time and you need to replace like any other belt before breakage. So don't worry about it and at your mileage replace the serpentine belt/tensioner and idler pulley along with the plugs...as they are due.
A timing chain should never need changing.
I have almost 280K miles on one of my Hemi's...the other is at 170K.
I have a 4.7L that just hit 370K miles.
Its not like a timing belt that can break over time and you need to replace like any other belt before breakage. So don't worry about it and at your mileage replace the serpentine belt/tensioner and idler pulley along with the plugs...as they are due.
Joined
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1,199 Posts
I'll third the other guys. If, for any reason, the heads have to come off then it's worth pulling the whole cover and doing the guides and tensioner because parts are so cheap.
If you are running stock cam/valve springs, and change your oil regularly, it isn't worth replacing only the chain without the crank and VVT sprockets.
If you are running stock cam/valve springs, and change your oil regularly, it isn't worth replacing only the chain without the crank and VVT sprockets.
As Don Fox stated, the chain guides are the weakness. Heck the pre-2015 challenger RTs used a plastic chain guide that would fail to the point there was a recall to replace the guide with an aluminum (glide surface was still plastic) version. Only impacted the automatic trans RTs though. +2012 is when I believe FCA made the switch to the new chainguide.
If we are talking pentastar...at about +600k miles the guides will fail. Although makes me wonder if this engine in this article is a unicorn?
macsmotorcitygarage.com
If we are talking pentastar...at about +600k miles the guides will fail. Although makes me wonder if this engine in this article is a unicorn?
Video: Inside a Chrysler Pentastar V6 With 626,000 Miles
This Chrysler Pentastar V6 with 626,000 miles on the clock demonstrates just how far engine technology has progressed over the past several decades. First: For those who aren’t familiar, let us introduce you to the Chrysler Pentastar V6. Introduced … Continue reading →
macsmotorcitygarage.com
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