fjh

Yup that is a terribly important statment we have several MP10 running now and there are gains in fuel milage to be had over the ISX egr engine BUT did we take into acount the cost of the urea?The Mp 10 is geting aprox 5.3 mpg doing the same job as the isx at 3.6 mpg But are we adding in the cost of the additive That I don't know! Lets get the real world Facts out there people!

Yup look after the air filter then !Remember A good performing 500 v8 is 28 to 32 psi With a stock turbo you start wailing 50 psi your moving lots of air! 600 hp is easily pulled from these With a tweak but the wrist pins are the weak point .Watch your oil changes for brass on the pan plug! If you see brass be carefull Maybe sample your oil once and awhile!

I would ask the question Why? What model is the truck !CL? RW? MH? So having said that if the truck is a RW I would highly recommend putting 2 air cleaners on it if it is a CL I would find a bigger air cleaner and put it on it! With a turbo moving that much air the air restriction will likley be real high even with a clean air cleaner! I have seen the elbow at the turbo become sucked flat with a semi cloged air cleaner and stall the engine momentarily( with engines that have been tweaked Fuel wise).RW with under the hood air cleaners and CL models are subject to this condition. What I am getting at is air restriction may be causing the oil weep in the first place.

Chuck! Did it throw any codes? If not the egr valve can cause stuff like that with no codes Also the VGT can stick !Usually with a code thou. Try lubing the little lever on the turbo with some Penetrating oil see if that helps! Next time your by the shop have 68 stroke out the turbo to make sure its calibrated or holding it's calibration.

Yup we swap Fixes and stuff Makes us look like wizards to the mortals! Unfortunately looks can be deceiving.

does it crank at all? When you turn the key on does the dash lite up if not then you likely have a bad relay the accessory relay/s are generally mounted beneath the ashtray panel on top of the middle dash. Or depending on year inside the glove box panel to the left side. Also if you have had lots of rain in your area look behind the passenger kick panel ( 4 screws) look for a smaller looking black box (Vehicle ECU) I have seen leaky windshields cause these to fail unplug the box and check the plug for green connections just some stuff to look for! Good luck

Check the end of the rocker shafts and make sure there are plugs in the ends they tend to pop out on these engines.The valve set likly has no connection to your problem!

Flywheel bolts ! 180 Head bolts 220

If you look closely at the three titans we have sold you will see the bumper has been hydro cut to open it up to expose the tow shackles on the frame! Note Click on New Mack owners.If you compare the bumpers in the pics of the sold trucks to the pic on the opening page you can see the diffrence! http://nanaimomack.com/

Yup put a jack under the pin, take the weight of the truck then smoke the axle once or twice with an 8 pound or so hammer!

Hope your right!

Like rhasler has said check trans if ya don't find it there, its likly leaky liners if you have sludge in the breather that is not a good sign..

Yup just pop a fifth wheel on there and you got yur self a ready made low bed tractor me thinks,

Loose valve seats were comon on these engines !It wouldn't hurt to pull each valve and tap on the seats with a brass drift while holding your thumb on the other side of the seat . you can feel em vibrate if there loose!

Kinda odd its written on the truck as well! Guess the binders wouldn't start or something that day.

If It ran on ether The cam or valve set are likly out the window!Sothings going on here that the ecu dosent see as a problem!

Bleed em at the head ! The (Mack way is for normal situations) you have an abnormal situation . Crack the fuel line at the head at least two if not all the cyls get solid fuel there as per rhaslers instruction ,then you know for sure where your at !Also I'm sceptical of the valve set ( IF YOU had the cam out) you said you could not find info on the set? The valve set marks are on the fly wheel, set the engine on one of the marks and check for valves rocking on one of the cyls and then check the set on the other.We Don't even know if the cam is in time at this point as you have been thrown into the middle of things here! Was the cam out ? Another WARNING For you If this engine has droped a valve, I Would be Taking a serious look at the Lifters on that cyl If it has Ceramic lifters You may be doing a cam sortly if you do get it running. Just my opinion!

Its a hard call !If you don't want to spend the bucks then clean em up and move on! V8 heads had a tendency to drop valve seats WITH OUT WARNING it would happen like this, shut the engine down for the day , start the engine in the morning and it would be banging. The point is you need to scrutenize the valve seats when you have em apart wether your rebiulding or just patchin look at em close ! Either way the heads will serve ya best by looking at the seats,

Go after them damp spots first see if that repairs the problem Check the plastic line between the pump and the head and the jumper between the heads! Also the valve that the plastic line goes to, take the end off of that and check to make sure the spring is not broken.