exhaust crack & epoxy

[oderdene]

My exhaust cracked as shown below... :sad0147:
http://i861.photobucket.com/albums/ab180/od_999/my%20xj/IMG_4365.jpg

and I bought them for repair

http://i861.photobucket.com/albums/ab180/od_999/my%20xj/IMG_4360.jpg

will it work or I'm just stupid, which thinks this kind of paste will work?

As advertised, this one is from USA.
Done Deal Adhesives Inc.
Hudson MA USA
01749
Tel: 1 - 978-562-8928



I can't find this product from their english web, but in Russian, it well introduced here (http://www.done-deal-adhesives.com/ru/component/page,shop.product_details/flypage,shop.flypage/product_id,32/category_id,13/manufacturer_id,23/option,com_virtuemart/Itemid,26/).

[Mudderoy]

I ran mine cracked for years and years. Here is the eventual outcome...

http://xjtalk.com/images/special/jeep_exhaust_manifold_crack.jpg

As you can probably tell, I replaced mine.

[oderdene]

this one is very expensive, ~ 215$ here (http://www.partsgeek.com/gbproducts/WC/2226-01068973.html?utm_source=google&utm_medium=ff&utm_term=1991-1999+Jeep+Cherokee+Exhaust+Manifold+Dorman+91-99+Jeep+Exhaust+Manifold&utm_content=YN&utm_campaign=PartsGeek+Google+Base) + shipping to Mongolia, :( :( :(

I found Renix 4.0 engine from '90 XJ in my friends garage, is it fit to my 4.0 H.O?

[Mudderoy]

this one is very expensive, ~ 215$ here (http://www.partsgeek.com/gbproducts/WC/2226-01068973.html?utm_source=google&utm_medium=ff&utm_term=1991-1999+Jeep+Cherokee+Exhaust+Manifold+Dorman+91-99+Jeep+Exhaust+Manifold&utm_content=YN&utm_campaign=PartsGeek+Google+Base) + shipping to Mongolia, :( :( :(

I found Renix 4.0 engine from '90 XJ in my friends garage, is it fit to my 4.0 H.O?

If/when you do replace the header, think about wrapping it. I wish I had done that to mine before I installed it. Helps keep the heat out of the engine bay.

[XJ4IV]

Let us know if it works... mine is cracked in the EXACT same spot and you cannot get a weld on it at all Ive had a few qualified welders make attempts hoping they would screw something up big and then have to pay for a whole new header on THEIR dime

[mud-dog27]

If/when you do replace the header, think about wrapping it. I wish I had done that to mine before I installed it. Helps keep the heat out of the engine bay.

downside to wrapping is it also speeds up the rust process, or so im told. i thought bout doing this with my header but asked around first and the only people that werent complaining bout rust issues were the street jeep guys

as for the OP i wouldnt expect much out of it ive tried all sorts of that exhaust glue,sealer or whatever ya wanna call it and ive found it lasts about a week and cracks off, and this was on places that ran much cooler then those manifolds.

[xj4life2]

I honestly don't think any kind of glue will work on a manifold I have tried welding them for people and have a couple last but normally they crack near where the repair was done. I have had good luck with headers as far as lasting longer than the factory style headers but to me its all about price.As far as I can tell from my books here the renix will not work on yours port size is diffrent.

[W.O.R.P.Offroad]

i have tried sim products none worked. from what i hear and read all manis will interchange just make sure you use the gasket for your head.

[wv jeeper]

The headers and manifolds do interchange but not well. If you use a manifold it will cover up a 1/4" of your exhaust port on the head. I know because I just put a 1996 motor in my 2000 jeep and will have to have a down pipe made so I can use the header. I have the manifold on temporarily and you can tell it is restricting flow substantially.

[Rysam]

The infamous APN header is much cheaper than that dorman, http://www.ineedparts.com/auto-parts/exhaust-parts/exhaust-manifolds/jeep-exhaust-manifold.html

I run one and have no complaints. no clue if they ship to mongolia.

[oderdene]

thanks a lot Rysam, will order soon and ship to my friend in US.

[oderdene]

Yesterday tried to use epoxy. Hard to reach without dismantling, but successful.
As instructed in packaging
- cleaned surface and
- evenly applied this gray thing.
- wait for 3-4 hours for polymerization (4 hours) - looks good in shape and seems already hardened
- and heat up to normal temperature.
- bubbles appear - sign of not fully hardened

Here is the result.
http://i861.photobucket.com/albums/ab180/od_999/my%20xj/IMG_4558-Copy.jpg
There were crack, I think it because thickness (instruction was 6mm) of epoxy.

Next time will use 2x2 mm mesh as armature and apply again.

[XJ4IV]

That TOTALLY sucks man I would have been on fire if I had done all that labor and trhat was the result... just an ugly mess that STILL has a crack in it.