Breaking stuff during repair..

DamageINC · August 23, 2008

Ok, so I just wanna see if anyone else is seeing this yet...

First - there's the fuel line that gets banjo'd to the HPFP and works it's way around the right side of the intake, then snakes behind the oil filter housing, and quick-connects to the fuel filter housing. Has anyone had those crack at the flexible-hose location? I was installing this line when I noticed diesel fuel dripping right out of the braided section, the line is internally cracked beneath the braided cover. I must have done this either during removal or installation, but I don't know when.

Funny thing is, there were 2 other dealerships near us that had that line in stock - so are others breaking this thing too?

Also, I went to tighten the M12 banjo bolt for the fuel line-to-fuel filter housing, to the shop-manual spec of 28 ft/lbs. The bolt just exploded instead, right as the torquewrench clicked. Had to extract the remains of the bolt from the housing and blow out the fuel line to make sure none of the kibble got into the fuel.. Seen that yet either?

Dave

Aaron_Johnson · August 25, 2008

Yeah I have seen it on 2 engines. They wern't leaking when I took them apart, but did after I put them back together. To me they looked kinked before I took them apart.

Mikill · August 28, 2008

We have had more than a few cracked and broken plastic heater pipes on these 6.4's during repair. I actually used a bolt that was too long and drilled a hole thru one. Another tech pryed against his and it cracked. Another somehow shattered one to pieces.

Keith Browning · August 28, 2008

Dave, I had to check fuel pressure going to the HPFP at the filter outlet. I had to disconnect that line and install the test hose in-line. I had to re-route the line and got pretty brutal with it. It wasn't leaking when it left but you got me thinking now...

Those plastic coolant pipes absolutely SUCK! I have broken two and have the utmost respect for them when working around them. None-the-less, making those pipes out of that plastic is absolutely uncalled for.

DamageINC · August 28, 2008

I completely agree about those heater pipes, what a horrible idea that was.

That one by the left valve cover is in a bad spot, it's no wonder why people have been breaking them. But to be honest. the OTHER one that goes from the front cover, around the right side of the intake and then to the heater core... WOW. That thing is hard to remove even with everything OFF the engine. If the front cover's not in the way, then the intake is. So you try to remove the intake... but it hangs up on the front cover. It's like you need to move all 3 pieces at once to get it out without breaking the shit out of it.

Dave

Tony302600 · August 29, 2008

in a warranty action notice letter i read it stated. " many dealers are breaking the plastic heater hose. Solution: Don't break it. Follow WSM" LoL. Like we intentionally break them. I've been lucky and have fought for 5 minutes trying to get a passenger side valve cover off without breaking the tube. /forums/images/%%GRAEMLIN_URL%%/king.gif