Mcrafty1

It's always about the revenue first....and control of the masses second....wait, maybe it's the other way around?

Actually I believe that line has been replaced sometime during this whole ordeal....just when I can't say but I'm certainly going to look into it. I think when I do find the culprit it's going to be some stupid little thing like that. Thanks for suggesting that....you have me thinking about now.

The nozzles are out of the head now, when it comes back from the machine shop I'll check and make sure the sealing washers are not doubled up. Thanks, Allan

Thanks, Yes we checked that the first time and replaced the nozzle the second time just because that was all we could find to blame it on then but I guess that wasn't it because here we are today.

The tops of the pistons look comparatively the same, what happens is it burns down by the side in a small area and melts the ring landings which are a different material (steel of some sort maybe? IDK) and then that tends to work around the piston within its own grove until finally pieces of it works it's way back up on top pf the piston and then the noises start, other than that the truck runs ok but develops blow-by. Last time I shut it down at the first signs of a problem and replaced that one piston and liner and this time it had done a lot more damage to the piston before any significant signs of trouble showed up other than the blow-by. The head on that end had to go to the machine shop and I decided I would do the other 5 holes and rods and mains this time so I'll be starting out with a new engine again....and I Will be cutting the fuel back a bit but I doubt it will be the answer to this specific problem. I'm still liking the two washer theory although I worked on that head yesterday myself. I was checking the valves and can specifically remember comparing that nozzle to the one on both sides of it and can't believe I wouldn't have noticed a difference in the protrusion of it in reference to the surface of the head since I was inspecting it for damage then.

Thanks Glenn, The pump rack was overhauled and was re-calibrated the last time this happened, and the governor was repaired this time and they said although it wasn't new by any means, it was right and would be fine for a while....or so they said, it is a very reputable diesel fuel specialty shop in Bangor, Maine that does many, many of the surrounding area truck shop and personal owner fuel work. I believe them when they say the pump is right.....however, I have no way of checking their work.

Yes, nozzle has been check any clogging and has been checked for proper aim. Thanks

Will do

Wow, that's a possibility I hadn't considered and it is doing it in the same spot each time...If that were the case wouldn't it be noticeable on the underside of the head? by that I mean wouldn't that injector protrude a enough less below the head compared to the other two to be noticeable? or would it be such a small difference that one wouldn't notice it if they weren't looking for it? If what you say is the case it would explain the whole sorted affair with this engine's problems. I'm for sure going to check it out, Thanks a lot! that might just be the answer.

I've discussed this here before to some degree but my 86 mack E6 250 has burned down around no five piston yet again (third time in 3700 hrs. ) my question to the mack gurus here is this: although I have the fuel turned up on this engine and drive it myself can anyone explain why the same number 5 piston is the only one that fails? the other 5 piston have been in the truck three times as long as the one that failed yet show no signs of over fueling or excessive heat. Some history...The first engine failure was 10,000hrs. broken ring which ended up on top of the piston (which now looks a lot like the same failure that I keep having) the engine was inframed, fuel turned up at this time and new heads were installed(all mack parts) same nozzles, 2000hrs later same piston failed replaced that piston and liner only and replaced the nozzle thinking that that was the culpert. Started to notice some blowby around 3600 hrs.and the pump failed at that point (governor issues) so I sent it (the pump) to a reputable diesel fuel systems shop and had it rebuilt and last week at 3740hrs. no 5 has failed again...I'm really at a loss as to why the same piston is the problem every time and I'm hoping some here has had the same issue and found out how to correct it. Thanks for any and all insight into this that you have.

Like I said.....I just didn't see any buns that those burgers would fit between

You just spoiled it for me.....I thought they were two burgers that nobody had any buns for.

Nice pics but I confess I come here mostly for the wimmins......don't let me down

As usual some really nice shots of.....trucks, all good stuff, too bad you went and soured the whole thing with the obama shot, had you left that out you most likely would have won some some kind of prize for this weeks display, that one photo however, cancels any and all accolades for this session. Please don't give up trying though, you show potential ....and more wimmins would smooth over the obama screw up too.

Thanks Other Dog...as usually you bring us a nice mix, I am now looking forward to the weekend just so I can view the 'Pictures of the week'

Prolly that guy in your outfit that is always there to help you tarp the loads that need it.....knew you had em and figured you owed him

The Washington insiders all hate Trump....that's reason enough for me to vote for him.

Is it just me or does the flatbed in the first pic look like it's about 75 ft. long? camera angle maybe? The goat is flirting with disaster feeding that close to the highway also.

I'm thinking she is holding her arm up out of the way (maybe strokin her hair too) so you can have full view of those absolutely stunning legs But then....I'm a perv

...and cheaper...

Thanks for the pictures, I too like to see how the rest of the world looks in real life not tourist adds.

Maybe they heard you'd be driving and thought it best if they stayed a well back from the highway! Naw, I'm just funnin ya Just keep driving and you'll see some beautiful sites........and some not so beautiful

Those pictures are OK but the ones with European wimmins would be nice too

Yeah I know guys, I see the pole behind the cactus I was just funnin ya.

Very happy to hear you pulled through.....I'll go out on a limb here and say that I speak for more than just myself, So from now on when you're going to be MIA please have a back up to post a few random pics for the week, some of us have come to rely on them P.S. please tell them 'no Walmart shopper pics' ........unless they're extra good looking wimmins