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Valve ticking ???

1629 Views 7 Replies 4 Participants Last post by  kipamore
Good day folks, Got back this morning from 4 wheelin in North Dakota. My tow rig has devloped a ticking noise similar to valve tick in gas engines. 300 miles down all seemed OK other than mileage. 300 miles home. If I recall correctly my OEM pump gave me 19 mpg (Canadian gallon) unloaded & 14 mpg loaded. Now with new Stad injectors & a DPS pump I'm @ 21 unloaded but only 10 loaded. Now truck has this noise. Swung by diesel shop & they said these engine are known to pound the valves into the head. Is this true? By the way I now have a heating issue under load. Pulling in Montana flat grade @ 800 EGT. Slightest increase will give me 1000. Can run there for a very short time before engine temp begins to rise. Mech temp sensor in drivers head would goto 230 then I would back off the fuel. Running in direct @ 62mph & 2500rpm. Did I cause some problems with the heat? The factory guage only ever got to the "A" in normal before I got off the pedal. THX much.
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It may be pointless, but here's a quick tip: There should be some threaded plugs at the top of the water pump. On my IH 7.3, they are regular NPT thread, so you can use generic plumbing stuff from Home Depot. Easy way to put a temp sensor, shutoff valves, tee fittings, aux lines, etc into the cooling system.

Kip on Truckin'
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