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Muffler/Exhaust Question #839295 10/02/07 03:51 AM
Joined: Nov 2002
Posts: 7,892
stony-man Offline OP
Web Wheeler
*****
Coming home this afternoon, and my truck suddenly got a little louder. It actually sounded pretty cool. I thought I'd just leave it alone awhile. Buuuuut, before I got home, it got SUPER loud, and I found this, when I pulled over:
[Linked Image]
[Linked Image]
[Linked Image]
So, what do you guys think I should do with this? I think I could almost bolt that back together? Or should I replace it with new? It's ALL the original stuff under there, so it's 15 years old. I've often wondered what shape the cat was in, should I replace everything? Money's tight, so I hate to do any more than necessary, but I do plan on keeping this thing for a loooong time, so I don't want to half-butt things if I can help it. Suggestions?


- '92 LWB V6 3.0 5 sp
33x10.5 BFG M/Ts & Bouncy seat
- '95 LWB V6 3.0 Auto (Scrapped)
- '05 Montero Limited. Bone stock <img src="/forums/images/graemlins/frown.gif" alt="" />
Re: Muffler/Exhaust Question [Re: stony-man] #839296 10/02/07 04:48 AM
Joined: Nov 2003
Posts: 5,690
87Montero Offline
Trail Leader
***
Thats minor! bolt it back together.. it'll buy you enough time to save up enough to replace it all, or till it rusts out after winter. <img src="/forums/images/graemlins/cheers.gif" alt="" />

Tax season is coming soon, and you've got another kid! <img src="/forums/images/graemlins/smile.gif" alt="" />


1999 Mitsu Montero - Crappy Weather
1992 Isuzu Pickup - Zombie Apocalypse
2008 Saturn Sky Redline - Nice Weather
Re: Muffler/Exhaust Question [Re: stony-man] #839297 10/02/07 04:54 AM
Joined: Sep 2004
Posts: 4,479
StockRaider Offline
Roll Me Over
***
Bolt that back together. My Raider broke in the same spot a few years ago. I bolted it back and it was fine till the welds on that side let go. Then I bolted a glass pack on an enjoyed the new tone. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Edit: is that a leak I see on that input shaft on your axle??? hmmm sounds to me like you could use a new 3rd member. Mines still for sale btw <img src="/forums/images/graemlins/smile.gif" alt="" />

Last edited by StockRaider; 10/02/07 04:56 AM.

Richard E
1989 Montero - Stock-ish
1989 V6 Auto Raider - 5.3 Vortech Swap.
1987 Mitsubishi Starion 2.6t, soon to be 3.5
1983 Honda XL600R
Re: Muffler/Exhaust Question [Re: StockRaider] #839298 10/02/07 11:58 AM
Joined: Jun 2006
Posts: 40
S
shadytree Offline
Getting the Wheeling Fever
I know you were saying money's tight (and believe me I understand!) but I recently upgraded to a 2 1/4 inch pipe and a flow master style (knock off of course!) muffler when I replaced my exhaust about 8 months ago. I spend about 110 bucks, it sounds great and I did notice my engine running consistently cooler in the florida heat. I know cooling is such a major concern with these rigs that why I brought it up......


89 Raider 3.0L V6
Re: Muffler/Exhaust Question [Re: StockRaider] #839299 10/02/07 03:14 PM
Joined: Apr 2006
Posts: 3,607
Mad_Scientist Offline
Roll Me Over
*****
Quote
is that a leak I see on that input shaft on your axle??? hmmm sounds to me like you could use a new 3rd member. Mines still for sale btw <img src="/forums/images/graemlins/smile.gif" alt="" />


Yeah, I noticed that on the 3rd. You need to fix that leak. Looks to me like the studs have broken off. You might need to cut them off and drill two holes on the same place and use a nuh and bolt (with washers of course!) <img src="/forums/images/graemlins/kewl.gif" alt="" />


'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...
Re: Muffler/Exhaust Question [Re: Mad_Scientist] #839300 10/02/07 06:02 PM
Joined: Nov 2002
Posts: 7,892
stony-man Offline OP
Web Wheeler
*****
What leak? It's been like that for YEARS. If I mess with it, it might get worse smile I'm going to see if I can get that mess bolted back together. I like the way it sounds with just the straight pipe! <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/notooth.gif" alt="" /> But man, it SUUUURE takes away from the performance of the engine. The RPMs zip up a lot faster, and you don't feel anything happening. lol Must be a lot of power loss there. I would think that going to a larger diameter pipe could hurt power? No? Yes?
Thanks for the input guys.

Re: Muffler/Exhaust Question [Re: stony-man] #839301 10/02/07 06:48 PM
Joined: Apr 2006
Posts: 3,607
Mad_Scientist Offline
Roll Me Over
*****
that's how a muffler reduces noise, by restricting the exhaust flow. Therefore, the ascending pistons meet more pressure in attempting to push the exhaust gas out, sapping power. <img src="/forums/images/graemlins/kewl.gif" alt="" />


'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...
Re: Muffler/Exhaust Question [Re: Mad_Scientist] #839302 10/02/07 07:04 PM
Joined: Nov 2002
Posts: 7,892
stony-man Offline OP
Web Wheeler
*****
Really? Man, mine felt like it had LESS power with the less restriction. I thought it was something to do with back pressure? I know my dirt bikes run crappy without enough back pressure, but then again, those are 2 strokes so maybe it's not even relevant. <img src="/forums/images/graemlins/lol.gif" alt="" />

Re: Muffler/Exhaust Question [Re: stony-man] #839303 10/02/07 07:14 PM
Joined: Jun 2003
Posts: 7,356
MontyMcV Offline
Trail Leader
My old 92 had similar. I put two small c-clamps on the flange and drove fine for a year. <img src="/forums/images/graemlins/shiner.gif" alt="" />


Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com
Re: Muffler/Exhaust Question [Re: stony-man] #839304 10/02/07 07:27 PM
Joined: Apr 2006
Posts: 3,607
Mad_Scientist Offline
Roll Me Over
*****
Quote
Really? Man, mine felt like it had LESS power with the less restriction. I thought it was something to do with back pressure? I know my dirt bikes run crappy without enough back pressure, but then again, those are 2 strokes so maybe it's not even relevant. <img src="/forums/images/graemlins/lol.gif" alt="" />


Yeah, I know <img src="/forums/images/graemlins/smile.gif" alt="" /> Not enough exhaust is bad too...


'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...
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