Spizzer wrote:
We just took our Cat C7 out for a few days in the mountain. After a long climb up the pass and getting to our CG, the rig smelled hot, like something was burning, even could smell it in the bedroom. All guages were normal during the drive.
After three days we went to head back home and it took a lot to get it fired up. Cranked and sounded like it was trying to catch, but would not run on its own. After a long crank, it finally caught enough to lite of and run, but there was a BIG cloud of whit/bluish white smoke! During the trip down the pass it ran fine but when we got home (40 miles) I could smell the hot smell again. My first thought was a head gasket, but coolant and oil are perfect. Upon more inspection I found the fuel line going into the primary filter a bit loose and I can tell Diesel fuel has been leaking out at the input line is dirty compared to the output. I assume that since diesel can get out, air is being sucked in when it is running.
My question is: Is the diesel going to be like a gasser and if it is running lean due to air in the lines, will it run hot? Exhaust temp would be high causing something that normally doesn't smell hot to smell hot, while the radiator keeps the overall temp down showing no abnormal indication. Air in the lines would certainly explain the hard start. Once it was warmed up it starts normally.
I am due for filter changes, so am going change them out and fix the loose fitting to see if the problem goes away. Thought I would ask the question in the meantime.
thanks for your thoughts,
jeff
I would fix the loose fitting change your filters and go for a test drive. I would also check the front of your CAC (this should be done at least annually) as Britt subjected.
Bill
