Intake manifold temperature creeping higher
I have been noticing that my manifold temperature has been creeping higher on my ISL 370 w/80K miles. It used to be 10-14 degrees F higher than ambient temperature. But now I'm seeing (via Silverleaf)...
Forum Discussion
DSDP Don wrote:
"lfeatehr"...I was glad to see someone else monitors their intake temperature since Cummins doesn't look at exhaust temp. My 400 ISL always ran about 23-25 degrees higher than ambient temperature and never varied. My new coach runs about 30 degrees above ambient.
I don't know if you have an exhaust brake or engine brake, but I know when my exhaust brake was applied on my Monaco, the intake temperature would rise quite quickly. If you have the exhaust brake and it might be sticking a little.
Thanks Don. I have the engine brake. Intake manifold temperature remains about the same when EB engages.
Larry
