Oil temp

[Aussie Steve]

(10-16-2017 )808allstarr Wrote:  05 isx cm870. My oil temp reads 250 on any hard pulls almost constantly. Is it normal or should lower?

My CM871 had retarded injector cam timing. It was retarded by 12 thou, constant high oil and water temps. oil temps at 250 + when working hard. We checked all the usual suspects like oil and water thermostats, coolers, radiators, water pumps. the list goes on. Ended up being the timing was out from factory, this was a Cummins Recon engine but it may pay to get someone to with the tooling to check it for you. It's only a couple of hrs job. My engine works really hard all the time over here and still has the mandate