mackcx Posted September 15, 2009 Share Posted September 15, 2009 So my uncle took decided to purchase a 2001 cx with the heads to the engine missing. He took the engine apart to see why the previous owner would take the heads out and noticed that every single roller alng the camshaft was busted. The camshaft also looks shot to crap. Does anyone know what would cause the this to happen or has anyone experienced anything like this?? Thanks, Danny Quote Link to comment https://www.bigmacktrucks.com/topic/10673-e-7-etech/ Share on other sites More sharing options...
fjh Posted September 16, 2009 Share Posted September 16, 2009 So my uncle took decided to purchase a 2001 cx with the heads to the engine missing. He took the engine apart to see why the previous owner would take the heads out and noticed that every single roller alng the camshaft was busted. The camshaft also looks shot to crap. Does anyone know what would cause the this to happen or has anyone experienced anything like this?? Thanks, DannyHope he got it cheap!Mack Hada rash of bad Cam s at times with these!You say there smashed or are they pitted and to hell ,the rollers go flat some times If the rollers are smashed as you say then the engine has likly been over sped and I would be looking at valves and bent push tubes yada yada!Look at the piston tops for witnesss marks. Quote Link to comment https://www.bigmacktrucks.com/topic/10673-e-7-etech/#findComment-40438 Share on other sites More sharing options...
rhpaulin309 Posted December 22, 2009 Share Posted December 22, 2009 Hope he got it cheap!Mack Hada rash of bad Cam s at times with these!You say there smashed or are they pitted and to hell ,the rollers go flat some times If the rollers are smashed as you say then the engine has likly been over sped and I would be looking at valves and bent push tubes yada yada!Look at the piston tops for witnesss marks.The unit pumps gaskets on E7 will developp leaks when using low sulfur diesel if no additives are used, then fuel will drip directly on to the cam and it can lead to a big ol mess. Quote Link to comment https://www.bigmacktrucks.com/topic/10673-e-7-etech/#findComment-45621 Share on other sites More sharing options...
bobo Posted December 26, 2009 Share Posted December 26, 2009 (edited) So my uncle took decided to purchase a 2001 cx with the heads to the engine missing. He took the engine apart to see why the previous owner would take the heads out and noticed that every single roller alng the camshaft was busted. The camshaft also looks shot to crap. Does anyone know what would cause the this to happen or has anyone experienced anything like this?? Thanks, DannyIf you're lucky and the dealer likes you can get the cam changed under policy, they replaced mine last summer with 650k on it, i had to pay labour and gaskets! but with the heads gone, Im guessing you're beat! and remember when you hear the pop'n under the hood shut it down and save some cash! Edited December 26, 2009 by bobo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/10673-e-7-etech/#findComment-45897 Share on other sites More sharing options...
farmboy8830 Posted January 19, 2010 Share Posted January 19, 2010 The unit pumps gaskets on E7 will developp leaks when using low sulfur diesel if no additives are used, then fuel will drip directly on to the cam and it can lead to a big ol mess.What kind of additives should be used with this low sulfer fuel Quote Link to comment https://www.bigmacktrucks.com/topic/10673-e-7-etech/#findComment-47997 Share on other sites More sharing options...
bobo Posted January 20, 2010 Share Posted January 20, 2010 What kind of additives should be used with this low sulfer fuelhey I love lucas! belive it or not but I get it from my dealer and it the best price in town! Quote Link to comment https://www.bigmacktrucks.com/topic/10673-e-7-etech/#findComment-48059 Share on other sites More sharing options...
rhpaulin309 Posted January 20, 2010 Share Posted January 20, 2010 What kind of additives should be used with this low sulfer fuelI have used Howes Meaner Power Cleaner,the small bottle. It costs a bit more than than most but it si my favorites.Engine runs smoother with it. Also noticed extended life on injector nozzle. I live in southwestern Quebec,Canada and the refineries will put out a winter formula around mid october,what i call -40c diesel,even though the outside temperature still reaches +12Cel.in the afternoon.That fuel is great for winter but in warm weather i can tell just by the soud of the motor that i have caught a batch of -40 fuel. This said my 99 E7 still developped fuel seepage at 920 000 miles at the unit pumps, probably because of the unit pump O rings.In any case taking regular oil samples would be a good investement if you plan to keep your truck for an extended perido of time.I have seen quite a few different fleets bring in their E7 for fuel contamination in oil(more than 2%is abnormal)that is why i am ringin the alarm bell. Quote Link to comment https://www.bigmacktrucks.com/topic/10673-e-7-etech/#findComment-48074 Share on other sites More sharing options...
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