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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Flywheel orientation

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Old Jan 7, 2008 | 11:48 AM
  #1  
mtrdrms's Avatar
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From: CT
Flywheel orientation

Is it critical to put the flywheel back on in the exact location it was in prior to resurfacing? I am wondering because I did not mark the crankshaft before I took the flywheel off. 89 3.0 4x4.

Thanks

Andy
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Old Jan 7, 2008 | 11:50 AM
  #2  
superjoe83's Avatar
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From: Oregon City, Oregon
it should only go on one way, the bolts are offset, at least thats how it is on most engines
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Old Jan 7, 2008 | 04:10 PM
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From: Manassas, VA
no it does not matter on our trucks, I always mark them and put them back because I'm picky that way, but it really does not matter.

If you did not mark it and are interested in puting it back where it was, look closely at the mounting surface where it contacts the crankshaft. Usely you can tell which way it was oriented.
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Old Jan 8, 2008 | 03:46 AM
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mtrdrms's Avatar
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Thanks targetnut. I did a bit of research and found that our motors are internally balanced and therefore the orientation of the flywheel in relation to the crank does not matter.

Andy
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Old Jan 8, 2008 | 06:02 AM
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idanity's Avatar
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From: seattle WA
i even number my bolts so they go back in the same veins.
but, i also take my methodical sweet time.

however, when deathcouger and i put in a new clutch/pilot+t.out bearings, we installed new parts, and it has been running purr-fectly.

i would prefer a slightly lighter flywheel, but im in no hurry. many other projects 1st.
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