Melted my transfer case.
#32
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Per this site: http://www.engineeringtoolbox.com/me...als-d_860.html
aluminum melts at 1220 degrees F. so with high egts i could see that beign achieved. but aluminum also dissipates heat really well wich makes this difficult at the same time.
i would say plausible.. lol
aluminum melts at 1220 degrees F. so with high egts i could see that beign achieved. but aluminum also dissipates heat really well wich makes this difficult at the same time.
i would say plausible.. lol
#35
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#36
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This is definitely possible.
The downpipes braided flex sections are made of steel which is significantly stronger than aluminum. With a lot of heat, a lot of vibration and a good amount of time it can wear through any aluminum assuming contact is made. Especially considering how abrasive the braided steel is.
Even if it wasn't the braided steel section of the flex pipe I can definitely imagine this happening from a hot steel downpipe making direct contact with an aluminum surface. The heat isn't enough to do it alone but the hot surface definitely speeds up the process.
The downpipes braided flex sections are made of steel which is significantly stronger than aluminum. With a lot of heat, a lot of vibration and a good amount of time it can wear through any aluminum assuming contact is made. Especially considering how abrasive the braided steel is.
Even if it wasn't the braided steel section of the flex pipe I can definitely imagine this happening from a hot steel downpipe making direct contact with an aluminum surface. The heat isn't enough to do it alone but the hot surface definitely speeds up the process.
#37
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Ok, first off, I appreciate all the cheering on to get the pics up, especially the "this thread is worthless without pics" smiley Couldn't've done it with out you guys :P Actually, I apologize, I was supposed to be off yesterday morning, and my relief didn't show up, so I actually got off this morning. Pics are here, I SWEAR.
Ok, took off the DP, and there is a worn area on the pipe, AND a significantly worn area on the TC. If you look at what would be about 10 o'clock on the wear area, you see a small black area. I am not sure if this is dirt or what. I have run my fingers all over the area, and it feels like asphalt. I don't notice any apparent holes or cracks, but then again, it's hard to see when it's 5 inches from you nose. I cleaned off the wear area, and am going to check it in a few hours to see if it is oily again.
Now, as promised, here are the pics. I have more, but they are just different angles, so if they are needed, they can be posted. I apologize for the poor quality of these.
Ok, took off the DP, and there is a worn area on the pipe, AND a significantly worn area on the TC. If you look at what would be about 10 o'clock on the wear area, you see a small black area. I am not sure if this is dirt or what. I have run my fingers all over the area, and it feels like asphalt. I don't notice any apparent holes or cracks, but then again, it's hard to see when it's 5 inches from you nose. I cleaned off the wear area, and am going to check it in a few hours to see if it is oily again.
Now, as promised, here are the pics. I have more, but they are just different angles, so if they are needed, they can be posted. I apologize for the poor quality of these.
#38
it just looks like it was rubbing for a minute. adjust the angle a little bit on the DP, or wrap it. is shouldn't be leaking if it was just rubbing. If theres oil on it, might want to check other places.
#41
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Melted, rubbed, whatever. It damaged it. Does anyone know how if that outer part of the case can be replaced? Any ideas on $ of the part? That part is the ACD cover, correct?
Downpipe has been on for about a year. So 30k is a fair estimate on the mileage.
Downpipe has been on for about a year. So 30k is a fair estimate on the mileage.
#42
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Is it leaking? Doesn't look like it. If it's not, I wouldn't even bother for the T-case. But, the position of the DP on the other hand; Can you find a way to meneuver the exhaust to stay away from it? Something like angle the DP downward (with all the exhaust bolts loose of course) then get spacers for the frame stabilizers?
I had to go through this a while ago where I ended up bending the oil pan and a small section of the subframe to make it fit.
I had to go through this a while ago where I ended up bending the oil pan and a small section of the subframe to make it fit.
Last edited by D-VO; Jul 21, 2010 at 06:37 PM.
#43
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if you can't afford the t-case cover right away, get some aluma weld or jb weld and shut that leak! you may need a cover now, but if you keep riding like that, you will need a transfercase! and yeah, adjust that downpipe. now i gotta check mine!
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Oh, it's up on blocks in the garage at the moment, I am not driving it right now. Just an update. This morning when I took the photos, I cleaned up the worn area, and this evening the worn area has a layer of oil on it. I had my dad look up under also, and there appears to be no other source of it. It the aluminum porous as it gets worn down?!?! The only thing I can think of is there is a small hole that I can't see. -stuie