Thread: One last impeller torque ?
06-08-2010, 03:55 PM #1
One last impeller torque ?
Ok im installing my impeller and i asked in my other thread (which i cannot find) about torque specs for the allan bolt. The manual says 59ft lbs. Others in here mentioned that they went to 90 i believe....
Im using a vice to hold the impeller tool and a floor jack handle to slip over the allan wrench. Now, when doing this, there is obviously no way to measure the torque except to know that a 3-4ft long jack handle will go way beyond 59ft lbs even with just moderate feel, especially if you grab it by the back end for max leverage...
my question is, if i just go by feel and use only moderate strength with the jack handle, are there any possible side effects (against the impeller or pump assembly) to unkowingly torquing it down to 70-100lbs etc???
Meanwhile, i used antiseize lube on the threads to let it achieve a smooth, even torque.
06-08-2010, 03:59 PM #2
I always thought the prop torque was 92ftlbs at least on a RXP or RXPX.
06-08-2010, 03:59 PM #3
I always use Blue locktite, and with a 1/2" breaker bar I make it "good and tight" with moderate force.
Many prop changes, and never a problem
06-08-2010, 04:04 PM #4
06-08-2010, 04:05 PM #5
According to the shop manual its only 59ft lbs. I guess thats about right since there's nothing going on to make it unscrew itself
Hey psycho.....how long do u think your 1/2in breaker bar is?
06-08-2010, 04:29 PM #6
Oh well, mine says 92ftlbs 08-09 manual. Torque to whatever. But I have seen what a loose impeller can do to a engine its not pretty.
06-08-2010, 04:30 PM #7
- Join Date
- Apr 2008
- Plainfield, IL
06-08-2010, 04:31 PM #8
06-08-2010, 04:34 PM #9
06-08-2010, 04:57 PM #10
- Join Date
- May 2005
Tighten that sum biotch till the pump shaft breaks, then back it off a half a click. Always works for me.
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