Assenmacher Tool of Boulder, Colorado Toyota Filter Wrench

The Assenmacher oil filter wrench is a 3/8" drive only and I'm glad I didn't buy one because my oil filter housing was over-tight after the last oil change at a dealership. I was unable to break loose the plastic housing using a Motivx wrench and 3/8" flex handle breaker bar. I stepped up to a 1/2" drive 18" breaker bar and 27MM socket and still couldn't loosen the housing. I was finally able to loosen it when I added a cheater pipe giving me 30" of leverage and applied steadily increasing torque.

I probably applied 40-50 lbs force at 30 inches which equates to 100-125 ft-lbs of breakaway torque. I suspect the plastic housing o-ring was installed dry. I very much doubt the Assenmacher 3/8ths drive can handle that much torque.
 
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The Assenmacher oil filter wrench is a 3/8" drive only and I'm glad I didn't buy one because my oil filter housing was over-tight after the last oil change at a dealership. I was unable to break loose the plastic housing using a Motivx wrench and 3/8" flex handle breaker bar. I stepped up to a 1/2" drive 18" breaker bar and 27MM socket and still couldn't loosen the housing. I was finally able to loosen it when I added a cheater pipe giving me 30" of leverage and applied steadily increasing torque.


If you had used the Assenmacher 647LG you would have been able to remove the housing with a normal ratchet.
 

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