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I found a pdf document that has a picture of the location of the EGR valve for you. [http://www.allenengine.com/46-54-truck-install.pdf www.allenengine.com] Good Luck and Remember.Change Your Mind, Not Your Oil.Use the First In Synthetic Motor Oil's.See My Bio For more information.
PAG 46
The valve face should be ground to 46 degrees and the valve seat is 45 on all models except 4-4-2's. The 4-4-2 model is intake- 30 degrees and exhaust-45 deg. on the valve seat. The valve face is intake-30 deg. and exhaust- 46 degrees.
You have to replace the cartridge
46-50 ft.lbs. 46-50 ft.lbs.
If you get the chilton manuel for Suzuki Samurai/Sidekick/Tracker... #66500...1986-98, you can find the diagram on page 4-46. It is labeled as #10 on the diagram of the engine. It looks like it attached to the bottom edge of the fuel injection system. I hope this is of some use. p.s. this is for a 1.6 TFI engine.
Located on throttle body
4.6
44
276
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46+46=92.