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Exhaust hangers
mickt
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07 Aug 2021 11:47 - 07 Aug 2021 11:49#237363by mickt
On both the Jimny and now our new to us 2008 Vitara I have found the exhaust hangers corroded to the point of no longer connected to the exhaust pipes. Now the exhaust pipes themselves are sound on both vehicles but the spigots are corroding at the weld connections. Why is that I wonder? In the Jimnys case I had the exhaust system removed so repairing that was quite easy. But in the Vitaras case we need it working so it is a tad more awkward to repair. Anybody else come across this?
Not recently but I had similar issues with my defender. For the cost of some new hardware it was simpler to remove the exhaust and work on it comfortably.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Yes a bit with our Jimny. The first hanger on the first section after the CAT had completely corroded away. I made a bolt on repair section using an exhaust U clamp as the mount rather than welding on my back. This was later followed by wasting and cracking of the rear silencer mount, causing the exhaust to hit the body on rough roads.
Fixed all this by having a custom made stainless steel CAT back system a few weeks ago, should see my Jimny out!
Yokohama Geolanders, Sony head unit, NAUTILUS Air Horn, DRL conversion, Rear cargo space, Elvis Bobblehead, transfer Guard, Indian hanging Elephant, Koni Heavy track dampers, Custom SS exhaust, Voodoo Doll, Adventure Rack with LED ight bar, vintage ERIBA caravan usually attached (yes it's slow)
Last edit: 07 Aug 2021 14:48 by Scimike. Reason: I am sure this editor just adds random words, or Auto correct is taking over
Exhausts are never painted because they get very hot during normal operation. Bare steel will rust over time as we all know. But welds are always corrode faster than the base steel.
Here is why (Google):
'The weld metal compositions are usually optimized to enhance their mechanical properties; this makes them more anodic than the base steel, causing them to corrode at higher rates compared to their base metal'
Before fitting new exhaust system I always spay them with heat resistant paint (up to 650C) so they last longer than untreated ones.
TrailMaster 2" lift kit
Full floating rear axle conversion, JB underbody guards & recovery points
ORE transfer box HD brackets
T-Max split charge system
X-Shock Dakar ceramic clutch kit & roof rack
Flo-Flex castor polybushes
Kumho KL71 tyres
AVM manual hubs
ORA radius arm guards
Push-fit breathers
You can paint them and there is a brand designed for them. Heat resistant to 560 C. I have and have had all makes of cars and these are the only ones I have had this problem with!
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