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James David Posted on Aug 11, 2015
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What is the tightening sequence of the oil pan bolts?

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Ted Maxwell

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  • Lexus Master 3,519 Answers
  • Posted on Aug 11, 2015
Ted Maxwell
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Hi James:
Don't know if there's a really formal way, but here's what I've always done:
- 4 "corners" closest to the crank. Gently progressively snug them to lift the pan squarely against the block.
- all the rest - turn in until they barely touch the pan, then gently snug them to about how the first four were. THEN, starting at the centre, tighten out to the ends, one end at a time.
- I'm pretty sure there may be at least a dozen different people who may do it slightly differently, but THE MOST IMPORTANT PART (except for not forgetting the gasket) is to get it SQUARE to the block to start with.
Cheers:

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2_10_2012_7_06_27_pm.gif

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2_10_2012_7_07_34_pm.gif
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b8259f9.jpg

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5dbe5cd.jpg

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039a698.jpg

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402f99d.jpg

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fc8e34b.jpg

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0900c1528024bb27.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Exploded view of the oil pan mounting-3.1L and 3.5L engines

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