2000 Toyota MR2 Spyder Pipe (from muffler) connected to 2 flex pipes is sheared off at connection to flex pipe. need schematic and how can this be repaired
Re: 2000 Toyota MR2 Spyder Pipe (from muffler) connected...
Replace the entire section before and after the flex. Be sure to look into excessive engine movement, that may have caused this failure. Welds will fail again, quickly.
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Your oxygen sensor is located in your air intake manifold .disconect your air intake pipe and check inside or laternatively (from outside ) see where and elctrical cable is connected on your air intake line
You can cut out the Y pipe and replace it with a flex pipe from parts store, then clamp each end of the flex pipe, the pipe diameter will be 1-7/8 or 2 inch, also for the pipe replacement piece would work from a sunfire or cavalier from 1995 and up, might need to replace the muffler strap too. as it can break from rusting, if not already rusted and broken.
Well, the main point is that it connects to the other two pipes without any leaks. Also, if the replacement pipe is wider, it could touch other surfaces and damage them from the high heat.
Sounds like (no pun) your muffler and/or resonator are wearing out internally. After internal parts wear, they can make strange harmonic sounds. Sounds change with fuel, air filter and general tuning of car. Have a good muffler shop listen to it and take them in test drive to witness what you're hearing.
You can change the entire section of exhaust pipe that the flex pipe is in. It's usually bolted to the catalytic converter, on the back end, and to the exhaust manifold at the front end. It's just a matter of unbolting it and bolting on the new section of exhaust with new gaskets. You could also go to a muffler shop and have them cut out the old flex pipe and weld in a new piece of flex pipe in it's place. It's for you to decide which option is best for you, and for your wallet.
Flex pipe will work, or if it's a straight section of pipe you can buy a universal piece of exhaust tubing with flared ends, trim off the rusty ends on your original pipe with a hacksaw or Sawzall and slip in the new section. Clamp it with 2 muffler clamps and you're set. Total cost should be under $40.
I have seen a lot of muffler shops or reg shops just weld that thing together to stop the leak, because it does wear out fast, it is a flex joint, I think to replace it it, you have to get the whole section of pipes, crossovers, etc, whatever you have under there. Hope this helps.
Removal Procedure
1. Disconnect the negative battery cable.
2. Drain the engine oil from the engine crankcase.
3. Remove the exhaust flex pipe retaining nuts from
the exhaust manifold.
4. Remove the exhaust flex pipe retaining nuts from
the catalytic converter or the connecting pipe.
5. Remove the exhaust flex pipe.
6. Remove the oil pan flange–to–transaxle retaining
bolts.
7. Remove the oil pan retaining bolts.
8. Remove the oil pan from the engine block.
Cleaning Procedure
1. Clean the oil pan sealing surface.
2. Clean the engine block sealing surface.
3. Clean the oil pan retaining bolts.
4. Clean the oil pan attaching bolt holes in the engine
block.
5. Clean the oil pan scraper.
Installation Procedure
1. Coat the new oil pan gasket with sealant.
Important : Install the oil pan within 5 minutes after applying
the liquid gasket to the oil pan.
2. Install the oil pan to the engine block.
3. Install the oil pan retaining bolts.
Tighten
Tighten the oil pan retaining bolts to 10 NSm (89 lb–in).
4. Install the oil pan flange–to–transaxle retaining
bolts.
Tighten
Tighten the oil pan flange–to–transaxle bolts to 40
NSm (30 lb–ft).
5. Install the exhaust flex pipe.
6. Install the exhaust flex pipe retaining nuts to the
exhaust manifold.
Tighten
Tighten the exhaust flex pipe–to–exhaust manifold
retaining nuts to 35 NSm (26 lb–ft).
7. Install the exhaust flex pipe retaining nuts to the
catalytic converter or the connecting pipe.
Tighten
Tighten the exhaust flex pipe–to–catalytic converter
or connecting pipe retaining nuts to 35 NSm (26 lb–ft).
8. Connect the negative battery cable.
9. Install the oil pan drain plug.
Tighten
Tighten the oil pan drain plug to 35 NSm (26 lb–ft).
10. Refill the engine crankcase with engine oil.
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