Quote:
Originally Posted by pilot4fn
Isn't the reason JFP mention for only driver side bank (2) cam to be locked on 5-chain engine because:
to change the IMSB you take only two chain tensioners out - 1 tensioner for the IMS - cam and 1 tensioner for the IMS - crank.
Risk to have the chain to skip a teeth is when there is no tension on the chain.
On the passenger side bank (1), the tensioner will remain in place under tension and the chain should not have a chance to skip there while you work on IMSB.
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Actually, every knowledgeable source, including JFP, Jake Raby, and LN, recommends locking the exhaust cam on bank 1, the
passenger side, on a 5-chain engine. Regarding tensioners, it's my understanding there are three, two timing chain tensioners and one IMS chain tensioner. LN recommends removing all three:
https://lnengineering.com/files/2023-IMSS-instructions-rev-03-24.pdf
JFP, care to weigh in?
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