1992 240sx: any plumbers? best way to repair egr copper tubing pipe

[surreybc]

The pipe has an outside diameter of 2/3 of an inch. I assume a 1 inch pipe with .75 inch inside diameter could slip over the existing pipe to create a joint that would be soldered. rubber hose turned to charcoil.




hose repair on egr. this wont work for more than a few months. you will have to slip a piece of copper tubing over this and solder it.
http://img267.imageshack.us/img267/3328/img01516rm4.th.jpg (http://img267.imageshack.us/my.php?image=img01516rm4.jpg)

[s13boy89]

just take it all off or go and buy a new hose

[surreybc]

just take it all off or go and buy a new hose


the rubber hose I used came from the aiv which was on the end of egr pipe. its totally cooked though. i need the aiv in canada for passing emissions. copper tubing is easy to repair.

[s13boy89]

then use that if you think its the best method

[S14DB]

get a compression fitting union at the hardware store.

[fast_freddie]

Go to pick a part in Chilliwack, I think that there's two left.

[Def]

Yea, just get one off a used car. I bet a few people on this forum have one just sitting around.

[surreybc]

get a compression fitting union at the hardware store.

ok, I'll check the price on those. i guess the advantage is that they can be undone.

getting a new egr pipe doesnt work as i cant dismantle the original.

[Indolent]

I just had this ghetto-fab idea.

Home depot
Instead of using a rubber hose like you did, use the...
Super flimsy thin sheet metal that you can probably cut easily with scissors, cut a strip, rtv/gasket seal around the area, wrap the metal over the tube like a band-aid/toilet paper roll a few times, and use those adjustable metal hose clamps instead of those ones you have in the picture.

ghetto, but it'd probably work

the sheet metal kinda looks like this, easy to bend/crease by hand
http://www.electronicplus.com/images/products/K-S255.jpg

[surreybc]

The rubber hose I had used was literally charcoiled. It was very hard and brittle and just crumbled apart. this might be because of proximity ot exhaust manifold.
as i said, this hose was off the aiv line that was connected right to the exhaust too.

I'm thinking that rtv and the seal on a compression union would be cooked in a few months.

[240esux]

just block it off.

[Indolent]

Yeah, it's cause it's hotter on that tube opposed to the aiv tube, maybe instead of the gasket sealer, you could buy a gasket like the ones for headers/exhaust, cut a strip with scissors to wrap around under the sheet metal

http://www.berktechnology.com/shop/uploads/images_products/423.jpg

*I just remembered, JB WELD

[Def]

getting a new egr pipe doesnt work as i cant dismantle the original.

Why?

msglength

[dirtdiggler666]

i got one sitting in my garage

[surreybc]

Yeah, it's cause it's hotter on that tube opposed to the aiv tube, maybe instead of the gasket sealer, you could buy a gasket like the ones for headers/exhaust, cut a strip with scissors to wrap around under the sheet metal

http://www.berktechnology.com/shop/uploads/images_products/423.jpg

*I just remembered, JB WELD


that gasket would work in conjunction with any flexible pipe(flexible enough to clamp tight) that would be heat resistant enough.
soft copper pipe might work with the right clamp.

actually the gasket alone in conjunction with bracket likely would work. maybe one of the those muffler repair products would work. i realize they dont work on the muffler , there intended purpose.

[surreybc]

Why?

msglength

the reason why I cut it in the first place. I took it to a muffler shop and they couldnt get it off.

[surreybc]

bought a 2 inch long copper coupling for 66 cents but it had an inside diameter of .86 compared to .66 outside diameter egr outside diameter. i crimped it which was fine. problem is that the egr pipe is not copper so solder doesnt really bond or even migrate into the crack. with copper the solder just heads for the crack because of physics(capilliary action).

Miserable job. I ended up using one of those mini torches used for soldering wire. a soldering iron would be almost as good. None of the solder went to the bottom . I will try working from bottom and just butter the solder on. its low pressure so it should be fine. ugly , though.

http://i36.photobucket.com/albums/e25/vancouverbc_2008/jjj002.jpg

[surreybc]

copper tube and solder completely failed. I tried a muffler repair bandage which melted. have not checked to see if solder melts when car is running. copper tubing looks really cooked. saw some muffler sealant so i might try that.

[SqueekyClean]

An easier way to do this is.....

find another copper tubing so that the inner diameter fits just over your outer diameter of the stock tubing. JB weld it.

All this soldering doesn't give a tight fit.
JB weld works great and is hard as steel, because it is steel.
The best answer is the easiest and cheapest, and provides a great Clean looking seal.
JB weld can withstand high temperatures also!!!
JB weld is freaking Rock hard strong too!

It is my favorite Epoxy, and my garage is never without a few boxes of them.
http://i534.photobucket.com/albums/ee350/absolutist24/tube.jpg

[surreybc]

jb weld looks interesting. not sure if copper can survive the heat though. might try brass or something. also, the muffler sealant might be as good or better than jb weld for hot temperature. thanks for the input.

Q: Will J-B Weld work on an automotive exhaust?

A: Because of the extreme temperatures of exhaust systems, we do not recommend J-B Weld for use on exhaust manifolds and catalytic converters. Nor do we recommend the product for repairs within the combustion chamber. http://jbweld.net/faq.php

[SqueekyClean]

jb weld is good for temp fix. It will take the heat but not forever

[surreybc]

solder is totally gone. easily got the copper piece off. the muffler bandage was burned to crisp.
http://i36.photobucket.com/albums/e25/vancouverbc_2008/hhhhhhh011.jpg
http://i36.photobucket.com/albums/e25/vancouverbc_2008/hhhhhhh006.jpg
http://i36.photobucket.com/albums/e25/vancouverbc_2008/hhhhhhh004.jpg

muffler sealant has consistency of watery clay. I use a galvanized steel coupler normally used for threaded .5 inch steel pipe.
http://i36.photobucket.com/albums/e25/vancouverbc_2008/hhhhhhh003.jpg

[surreybc]

the exhaust sealant cracked and is leaking. i did layer it on so thick that it did not dry until next day when i ran engine for awhile but I'm moving on to a new repair method.

might just wrap sheet metal around and clamp it tight

[dirtdiggler666]

why is everyone so damn cheap just replace it

and for thos that say they cant get it off:ugh:well than you should not be working on cars. im not trying to be an ass :love: its just the way it is
i got 2 of them btw:bigok: