Hole in FlexPipe
#5
Speaking of a leaky flexpipe, anyone know how to replace it on these V6 1MZ / 3MZ engines?
The front of the flexpipe seems very tight with the U-turn from the rear exhaust manifold to cut and weld or clamp on a universal one. The flex pipe and catalytic converter unbolt as one unit but is expensive to replace.
The front of the flexpipe seems very tight with the U-turn from the rear exhaust manifold to cut and weld or clamp on a universal one. The flex pipe and catalytic converter unbolt as one unit but is expensive to replace.
#6
Speaking of a leaky flexpipe, anyone know how to replace it on these V6 1MZ / 3MZ engines?
The front of the flexpipe seems very tight with the U-turn from the rear exhaust manifold to cut and weld or clamp on a universal one. The flex pipe and catalytic converter unbolt as one unit but is expensive to replace.
The front of the flexpipe seems very tight with the U-turn from the rear exhaust manifold to cut and weld or clamp on a universal one. The flex pipe and catalytic converter unbolt as one unit but is expensive to replace.
Some other shops won't do it though on these, because as you mentioned it's very tight.
Last edited by hypervish; 03-24-14 at 01:19 PM.
#7
I'm thinking I can cut the pipe and clamp in the universal flex pipe myself, and take it to a shop to weld to save me some dough.
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#8
I'm out of state right now, but once I'm back I'll take a picture and PM it to you. It has the 1MZ-FE though. The exhaust is similar in the way that it's shaped however it has two flex pipes compared to just one on the ES.
#9
I copy pasted this from one of my early postings here, hope this helps.
"I also had the factory exhaust leak at the front of the flex pipe so I cut it off at about 8" behind the support bracket that mounts to the sub frame and then I got the assembly for a 98 Camry. The cool thing is that the Lexus pipe is double walled and the Camry is not however the Camry Exhaust slid perfectly between the walls, over the inner and under the outer and the flanges bolted up perfectly".
"I also had the factory exhaust leak at the front of the flex pipe so I cut it off at about 8" behind the support bracket that mounts to the sub frame and then I got the assembly for a 98 Camry. The cool thing is that the Lexus pipe is double walled and the Camry is not however the Camry Exhaust slid perfectly between the walls, over the inner and under the outer and the flanges bolted up perfectly".
#10
Thanks, maybe you can post the picture here.
I found this shop's website that does exhaust work, and they have lots of pictures of Lexus / Toyota vehicles for reference:
http://www.lgauto.ca/Lexus.html
http://www.lgauto.ca/toyota.html
I'm reading that these pipes are double walled. What does that mean? Is the 2.25" outer diameter including the outside wall? Is that what you'd clamp or weld to, or is that just the heat shield?
I found this shop's website that does exhaust work, and they have lots of pictures of Lexus / Toyota vehicles for reference:
http://www.lgauto.ca/Lexus.html
http://www.lgauto.ca/toyota.html
I'm reading that these pipes are double walled. What does that mean? Is the 2.25" outer diameter including the outside wall? Is that what you'd clamp or weld to, or is that just the heat shield?
#12
So what does that translate to if I want to put in a universal flex pipe? Will I get more noise? Would I be matching the outside diameter to clamp and weld to? What would the inner pipe fit to?
Thanks,
Thanks,
#13
#14
Not exactly like a Camry but close. The problem is that if you weld or clamp over the outer pipe, you will have a void for condensed exhaust vapors to build up into and this will cause corrosion within the two layers. The reason I used the collector and flex pipe assembly out of a Camry is that it fit over the inner and under the outer tightly. When I cut off the Lexus pipe I used a tubing cutter to cut the outer and then move back one inch then cut the inner. then when I put it together I welded two beads close together on the inner and then the outer to the end of the Camry pipe joining and sealing all of it together. It worked perfectly and only sounds a little; dare I say, "throatier".
NOTE: My ES is California emissions, the Camry assy I used is Federal. Thus I removed the upper cats. Legal in my state. And I get no CEL only because I also modified the down stream o2 sensor bung. (Not necessary if yours is a Federal car).
NOTE: My ES is California emissions, the Camry assy I used is Federal. Thus I removed the upper cats. Legal in my state. And I get no CEL only because I also modified the down stream o2 sensor bung. (Not necessary if yours is a Federal car).
#15
When I cut off the Lexus pipe I used a tubing cutter to cut the outer and then move back one inch then cut the inner. then when I put it together I welded two beads close together on the inner and then the outer to the end of the Camry pipe joining and sealing all of it together. It worked perfectly and only sounds a little; dare I say, "throatier".
I wonder what an exhaust shop would do, forgo the inner pipe and weld on the outside...?
http://www.lgauto.ca/Lexus.html
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