ISX oil leak
08-14-2019, (Subject: ISX oil leak ) 
Post: #10
RE: ISX oil leak
(08-12-2019 )Rawze Wrote:  if you install any plates, you will need Unilevers or mommaburt to make a custom program. Otherwise, it will have a turbo derate all the time.

Also, a lot of those "kits" are not so good quality. I have seen many that come apart, crack, burn through, etc. after a few months or a couple years and take the turbo or engine out along with them.

Definitely want to have that done then. Do I need pull the cams & inspect bushings while front cover is off ? If the bushings were worn would it show signs on the rollers / rockers ?
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08-14-2019, (Subject: ISX oil leak ) 
Post: #11
RE: ISX oil leak
(08-14-2019 )TallBoy441 Wrote:  
(08-12-2019 )Rawze Wrote:  if you install any plates, you will need Unilevers or mommaburt to make a custom program. Otherwise, it will have a turbo derate all the time.

Also, a lot of those "kits" are not so good quality. I have seen many that come apart, crack, burn through, etc. after a few months or a couple years and take the turbo or engine out along with them.

Definitely want to have that done then. Do I need pull the cams & inspect bushings while front cover is off ? If the bushings were worn would it show signs on the rollers / rockers ?

Pull the cams? Do you know for sure that is where the oil leak is coming from? With the fan running, and an oil leak on the front cover if could be anywhere. Did you invest in a box of the oil dye and the black light kit to know for sure where the leak is?

Clean the front of the motor with Dawn and warm or hot water, dump in around 6 bottles of UV oil dye, run the truck for a few days and break out the black light and glasses. The leak may be something as simple as a front cover leak.

And if it is the cam seals at the gears leaking, which it could be, but from my experience those appear at the top of the cover... I would run to Napa and get a box of dye and see where it is really coming from before tearing everything apart.
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08-14-2019, (Subject: ISX oil leak ) 
Post: #12
RE: ISX oil leak
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....         


User's Signature: One word not enough two words to much to say
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08-14-2019, (Subject: ISX oil leak ) 
Post: #13
RE: ISX oil leak
(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 ?
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08-14-2019, (Subject: ISX oil leak ) 
Post: #14
RE: ISX oil leak
Bushing tool, I got friend of mine to make me one ,for valves I buy the tool in Cummins Missisauga,ON


User's Signature: One word not enough two words to much to say
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08-14-2019, (Subject: ISX oil leak ) 
Post: #15
RE: ISX oil leak
(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.


User's Signature: Warranty??? Yeah right, I am the warranty!!!
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 Thanks given by: Rawze , Andre_The_Giant
08-15-2019, (Subject: ISX oil leak ) 
Post: #16
RE: ISX oil leak
(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.
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