JAKE ADJUSTMENT ON ISX

[Rawze]

(07-14-2019 )Signature620 Wrote:  Why are you torquing the shafts to 90ftlb?? They are supposed to be 22ftlb + 60deg.

I think 90 ft-lbs is about where you end up when you do the 22 ft-lbs + 60 degrees(one flat of the bolt head). Some people do it this way, does not really seem to hurt anything for the rocker shafts any ways. - 90 seems to be the minimum however,.. with the torque+ method, you will end up at roughly at 105 most of the time instead of 90, but 90 will hold it just fine.

opinion only...
- Personally,I don't know why the red maker states doing it this way for the rocker shafts, unless in the past they used stretch-bolts? -- My only other guess as to why it statres ti do it this way is so that the rocker shaft is fully seated against spring forces before fully tightening it?. So some moron does not tighten and torque one bolt at a time while the others are not even installed yet? -- Not sure, but these days, the retaining bolts are not of the stretch type, so I would think that a set torque would suffice just fine as long as someone does them all at 22 first.

- If unsure, use the torque+ method, find out what the average torque ended up being and set them all the same. Just don't do something like that for more critical components like say the head or bottom end bearing caps. those components use stretch-bolts and have a torque+ method for this very reason.