THe NAC Lots-O-BFG KO2 Thread

THe NAC Lots-O-Post Thread

autoboy454 said:
Ya... mines also an old school metal tank stuffed up in the floor joists. Should be lots of fun figuring out where to put a new style bladder tank
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It actually doesn't really care where it is in the system. It's only task is to absorb the pressure in the loop as the water heats and expands. Isolate the old tank, hook up a hose and punch a hole in the top of it to drain it out. Then slam in a new one where ever it fits nicely.
 
Re: THe NAC Lots-O-Post Thread



click for big

**** this jeep and **** this bellhousing in particular

what a god damn toilet

the crack ends where my middle finger is. About one inch of cast cheesemetal still holding between the CPS opening and the end of the crack.
 
Re: THe NAC Lots-O-Post Thread

ROBZ95Xj said:
cheap shitty motor mounts FTW!
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That doesn't have a ****ing thing to do with this and saying it does is like blaming a broken axleshaft on a loose steering box.

If anything, soft motor mounts will reduce the G forces the drivetrain sees and thus the flexure of the bellhousing. Sorry.

"Fixing" this issue with stiffer motor mounts is like "fixing" a bouncy floor and broken joists by using more nails at each end to attach the beam to its supports.

It is either a problem with the bellhousing, a problem with how I am installing them, or something I am doing to them. Or a combination of those factors.
 
Re: THe NAC Lots-O-Post Thread

XJLI said:
Found an entirely Asian cafeteria on campus where I work... In a building called the Wang (pronounced Wong?) Center. Eating some BANGING curry chicken. I can see myself wasting all my money here.
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Oh yeah they had a place like that when I was at the Unimassa Versichusetts. It was called "the oakroom" but we preferred to call it, "the peoples' republic of oakroom"
 
Re: THe NAC Lots-O-Post Thread

ROBZ95Xj said:
cheap shitty motor mounts FTW!
Click to expand...
This was my first thought.
kastein said:
That doesn't have a ****ing thing to do with this and saying it does is like blaming a broken axleshaft on a loose steering box.

If anything, soft motor mounts will reduce the G forces the drivetrain sees and thus the flexure of the bellhousing. Sorry.

"Fixing" this issue with stiffer motor mounts is like "fixing" a bouncy floor and broken joists by using more nails at each end to attach the beam to its supports.

It is either a problem with the bellhousing, a problem with how I am installing them, or something I am doing to them. Or a combination of those factors.
Click to expand...
I am kinda with Rob here.
To use your house analogy: If one end of your joist is flopping around the sheetrock in the middle and that end is going to crack.
Soft mounts and G forces? Jeez step away from the internet trolls Ken. ;)
 
Re: THe NAC Lots-O-Post Thread

RCman said:
This was my first thought.
I am kinda with Rob here.
To use your house analogy: If one end of your joist is flopping around the sheetrock in the middle and that end is going to crack.
Soft mounts and G forces? Jeez step away from the internet trolls Ken. ;)
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Exactly, but the joists don't flop around if they aren't weak in the middle.

Whether you have stiff mounts or not, the drivetrain is like 4 or 5 feet long. Each half is heavier toward what becomes the middle. So the drivetrain is going to want to sag in the middle. It's just how it is.

The mounts are multiple feet away from the midpoint, and are several inches wide, each. That's a lot of leverage on a mount.

The front mounts are supposed to handle the weight of the motor and react against the torque of the drivetrain. Based on how the sheetmetal brackets from them to the frame rails are made, they were never intended to handle torsion around the mounts (i.e. back of the engine sagging...)

The rear mount wasn't intended to handle torsion around the axis of the drivetrain, if it was it probably wouldn't just be rubber molded between the two sides. Just to hold the ass end of the drivetrain up.

So IMO, stiffer mounts is at best a bandaid for this particular breakage, and not the most effective method. It may work by virtue of bringing things barely back below the failure point, but you can mask death wobble by putting a steering stabilizer on, too. Doesn't mean it's the right way to fix it.

I might be talking out my ass here, but looking at how it's breaking, where the crack is starting, where the center of mass for each part of the drivetrain is, and how the bellhousing is shaped, I don't see how stiffer mounts will actually fix the root problem. It might bandaid it a little, and it might bandaid it enough to hopefully not happen again, but I'll be damned if I'm going to rely on that kind of luck when my feet are at stake. Plus I don't feel like buying another damn bellhousing and pulling this godforsaken transmission out to put it in if it doesn't solve the problem.
 
Re: THe NAC Lots-O-Post Thread

One of those sleep free nights where I start to wonder if I should just go to work real early :laugh:
 
Re: THe NAC Lots-O-Post Thread

ctxjlimited said:
Oh yeah they had a place like that when I was at the Unimassa Versichusetts. It was called "the oakroom" but we preferred to call it, "the peoples' republic of oakroom"
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lol

i already paid the price for eating it this morning. cant believe it exited that quickly :laugh:
 
Re: THe NAC Lots-O-Post Thread

Ewwwww that's gross Adam!!!!!
 
Re: THe NAC Lots-O-Post Thread

kastein said:
Whether you have stiff mounts or not, the drivetrain is like 4 or 5 feet long. Each half is heavier toward what becomes the middle. So the drivetrain is going to want to sag in the middle. It's just how it is.
Click to expand...

I'm not an engineer, so I'm not going to try to pretend I know what I'm talking about here, except for the fact that the AX-15 is much heavier towards the rear, and that the mount sits directly under the majority of the weight. I'd agree that the motor is heavier towards the rear, especially with the flywheel/clutch/pressure plate all bolted up. I'm not sure how that matters, though, because everything *should* be functioning as one structure, based on how it's bolted together.
 
Re: THe NAC Lots-O-Post Thread

squashman702 said:
I'm not an engineer, so I'm not going to try to pretend I know what I'm talking about here, except for the fact that the AX-15 is much heavier towards the rear, and that the mount sits directly under the majority of the weight. I'd agree that the motor is heavier towards the rear, especially with the flywheel/clutch/pressure plate all bolted up. I'm not sure how that matters, though, because everything *should* be functioning as one structure, based on how it's bolted together.
Click to expand...

Thanks for your insight Dave!
 
Re: THe NAC Lots-O-Post Thread

Dave's input is valuable, no doubt
 
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