Solution for scrunched-in Intake Box outlet due to tight coupler fitting
#1
Solution for scrunched-in Intake Box outlet due to tight coupler fitting
Hi guys.
Some of you may have experienced the intake bending as a result of a tight coupler on the intake tube. Those screw clamps can be strong!
Photo from previous thread: https://www.clublexus.com/forums/is-...et-intake.html
I have experienced this problem as well, and went through two iterations of fixing it.
First: I did a similar fix to what is seen in the previous thread. Epoxy/fiberglass resin. Final product seemed very sturdy.
I had some spirited driving sessions, and the heat rendered the fix as a bit futile. Upon inspecting the outlet, it bent a bit, compromising the patch altogether.
Second:
I found an ABS plastic tube with minimal thickness in Home Depot in the air conditioning section. This is a plastic coupler adapter.
Heated up the outlet pipe, test fitted the coupler, used specific ABS glue, cut with a precision hack saw, and it's perfect. The added thickness is as negligible without sacrificing structural rigidity.
Test drove up to 80 miles with 10 miles of 4-bar oil temps, and everything is kosher.
I recommend this as a permanent fix. I was weary about decreasing cross sectional area of the outlet, but this is not really the case with this fix. Also, sanding comes in handy.
Hope this aids anybody with a similar problem. Lexus should have definitely used more plastic in this coupling area of the airbox.
Some of you may have experienced the intake bending as a result of a tight coupler on the intake tube. Those screw clamps can be strong!
Photo from previous thread: https://www.clublexus.com/forums/is-...et-intake.html
I have experienced this problem as well, and went through two iterations of fixing it.
First: I did a similar fix to what is seen in the previous thread. Epoxy/fiberglass resin. Final product seemed very sturdy.
I had some spirited driving sessions, and the heat rendered the fix as a bit futile. Upon inspecting the outlet, it bent a bit, compromising the patch altogether.
Second:
I found an ABS plastic tube with minimal thickness in Home Depot in the air conditioning section. This is a plastic coupler adapter.
Heated up the outlet pipe, test fitted the coupler, used specific ABS glue, cut with a precision hack saw, and it's perfect. The added thickness is as negligible without sacrificing structural rigidity.
Test drove up to 80 miles with 10 miles of 4-bar oil temps, and everything is kosher.
I recommend this as a permanent fix. I was weary about decreasing cross sectional area of the outlet, but this is not really the case with this fix. Also, sanding comes in handy.
Hope this aids anybody with a similar problem. Lexus should have definitely used more plastic in this coupling area of the airbox.
#4
Upon googling, I found it online:
http://products.hardwareandtools.com..._500161647.php
Part #: L235
Good luck!
100% agree with you. After contemplating options on how to permanently fix this issue, I thought of doing what I did, but grew weary. However, the fix is placed after the MAF sensor; the reduced cross-sectional area of the pipe is pretty negligible, especially if you know how to sand; the ring I cut is barely a centimeter in length and the thickness is but a few millimeters, if that. Upon looking at the finished product, I grew less skeptical. And everything is A okay thus far
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