Clogged Muffler

Havent gotten around to really pull the muffler or pipes cuz its such a pain in the azz to do and I know when I do those bolts at the downpipe are gonna need cut replaced etc, my question is, while running should I be able to cover the tailpipe and with very little to no pressure, keep my hand there? I know there are a couple "small" leaks but not enough to pass ALL the exhaust when its covered.

Most four cylinders I've had would stall if you covered the tail pipe with your hand long enough (minute or so). I've never tried it on this beast, but I presume it would do the same. Slap a vacuum gauge on there. If the vacuum starts at normal after start up and then climbs closer and closer to 0 inHg you have a clogged something in the exhaust (most likley).

Here is the correct way to test for an exhaust restriction. Remove the O2 and connect a back preasure gauge in tne bong. Run the engine up to 2500 rpm if the gauge reads 3 lbs or more its clogged. I say its clogged at 1 1/2 to 2 lbs. Its a simple test and remember the engine must be warmed up. I never tried to stop an engine by plugging the exhaust . but my gut feeling is it cant be done. Just my thought on the subject. Never really tried it.

Thanks Tom, but ive been tryin to figure out a way to get my 02 off for a little while now lol. Started to strip it using an 02 wrench and havent messed with it since while I hunt down my other issues. Got any tips that would involve something the low budget backyard guy can try for that? Meaning a nice set of everyday tools but nothing exotic. by looking at the dp bolts/assembly thats going to require money I dont have now, because I know theres a crack in a weld on the top side of the ex pipe id get fixed, and one more i havent pinpointed yet but i "think" its before the turbo, but see no evidence.

The only way it will come out is with the smoke wrench. I usually cut the wires off and heat the base where the O2 screws into the adapter. then use a 6 point impact socket and long extension. Then a breaker bar and rock it back and forth till it comes loose. Repeat procedure till it comes out. Hope this helps.

Thanks Tom, lol had to look up "smoke wrench".