ISX oil leak

[TallBoy441]

(08-14-2019 )tree98 Wrote:  

(08-14-2019 )TallBoy441 Wrote:  

(08-14-2019 )Baco74 Wrote:  I have 05 cm 870,just over 1.3 mi. My start to leak between gear housing and block also on front seal . It's big job but take, your time . On the front also I change both idler gears and thrust bearing, top side pull cams out change bushings, valve seals, injector o-rings,run overhead,and new harmonic balancer....

Mine has just over 1 mil miles and appears to be leaking at front gear housing, crank seal & some minor seepage at the cam seals. I was thinking it would be best to change the cam bushings, and a few other things while it’s tore apart, maybe same some problems down the road. I got pin, wedges & gear puller. What else do I need to pull the cams ?

You might be wasting your time replacing cam bearings at 1 million miles. That head can't have much life left in it, Just my thoughts on it.

Yeah, I don’t know what the hell to do. Truck had 700k when I purchased it, so I really don’t know what’s been done to it. It gets descent fuel mileage and I’ve never had any problems with the motor, temp always around 190, fan rarely cuts on, used maybe half gallon oil between changes [alwys done at 10k ], very little visible blow by. Might be better to just reseal the front & run it and save up for inframe in the near future. I just hear all these bad stories about the cam bushings messing up the cams and costing thousands more dollars.