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Started By
Message
Exhaust repair tape, should I do it?
Posted on 1/10/14 at 10:00 am
Posted on 1/10/14 at 10:00 am
Planning on trading in my truck(08 f250 6.4) today, and I have a leaky flex pipe coming off of the manifold. Have to drive from New Orleans to Jackson also, pulling a Tahoe to trade both in, so exhaust temps are going to be in the 1000+ range probably half of the time.
I got this aluminum repair tape from AutoZone yesterday, and upon further research, it is supposed to be good until 260°F. After I read that, I also saw that they have some stuff that is good to 1900°,but you need to put something under it to close off the leak somewhat.
I know aluminum melts at 1200, so should I be good using that as an underlayment? Keep in mind this only has to last for 250 miles until I get to the dealership.
Replacing the flex pipe is not an option because the cab has to come off
Eta: I am guessing it is the glue on the aluminum tape that melts at 260, but idk
Eta #2: highest my EGTs have ever gone was around 1785,but I was on it VERY hard
I got this aluminum repair tape from AutoZone yesterday, and upon further research, it is supposed to be good until 260°F. After I read that, I also saw that they have some stuff that is good to 1900°,but you need to put something under it to close off the leak somewhat.
I know aluminum melts at 1200, so should I be good using that as an underlayment? Keep in mind this only has to last for 250 miles until I get to the dealership.
Replacing the flex pipe is not an option because the cab has to come off
Eta: I am guessing it is the glue on the aluminum tape that melts at 260, but idk
Eta #2: highest my EGTs have ever gone was around 1785,but I was on it VERY hard
This post was edited on 1/10/14 at 10:18 am
3
Posted on 1/10/14 at 10:09 am to Hammertime
Put it on after the motor cools off once u get there.
Posted on 1/10/14 at 10:19 am to Flashback
Genius! Can't believe I didn't think about that 
Posted on 1/10/14 at 10:22 am to Flashback
Then why put it on at all? Both are trade ins?
Posted on 1/10/14 at 10:27 am to Hammertime
Put some JB weld on if you are concerned about them seeing it. It's not going to come off and not going to burn off. Will be a semi-permanent fix and probably costs less than the tape anyway. Let the engine cool down, get the quickset JB weld - mix it up and apply it. Will be rock hard in 10 minutes and you are good to go.
Posted on 1/10/14 at 10:30 am to Tridentds
It is a hole in flex pipe. I think JB weld would just spread out all over the place and open up when the engine moves
Posted on 1/10/14 at 10:33 am to Tridentds
quote:
Put some JB weld on if you are concerned about them seeing it.
Will melt within a few minutes after the pipe gets hot. I tried it on an exhaust manifold on my Jeep a few years ago. Felt pretty stupid after I watched it just melt away like wax.
Posted on 1/10/14 at 10:50 am to htownjeep
Another problem is that the exhaust leak is causing higher EGTs....higher than normal.
With the surrounding steel getting to 1000-1500 degrees, it is gonna melt most things, except for steel. For some reason, I can't find any steel tape
With the surrounding steel getting to 1000-1500 degrees, it is gonna melt most things, except for steel. For some reason, I can't find any steel tape
Posted on 1/10/14 at 11:01 am to Hammertime
I have never gotten repair tape to work long term... only in emergency or short term. It looks like you are stuck because of needing to tow. I can tell you that they do make tape rated higher than 250^. If you are really concerned, wrap with the exhaust tape and then an exhaust wrap. I do that because you can get the wrap much tighter.
Posted on 1/10/14 at 11:06 am to AutoYes_Clown
Alright, just picked up this from Pep Boys LINK
Still think this is going to be a problem though
Still think this is going to be a problem though
quote:The EGT probe is obviously measuring inside the exhaust, and not the surrounding steel, so the gas in there is 1000+. No idea what the pipe temp is
Withstands direct heat up to 400°F and 2000°F radiant heat
This post was edited on 1/10/14 at 11:12 am
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