weephee Posted August 24, 2007 Report Share Posted August 24, 2007 Hello. I have just replaced the harmonic balancer on my 2003 STS. Bolt was unbelievably hard to get off but finally accomplished it. My manual says to tighten the harmonic balancer bolt to 37 ft lbs and then another 120 degrees. Is the 37 ft lbs correct. It sounds very light to me. I would have thought perhaps 90 ft lbs and then 120 degrees. Anyone out there help me with this. Thanks Link to comment Share on other sites More sharing options...
Eric Posted August 24, 2007 Report Share Posted August 24, 2007 FWIW FSM for 2000 seville calls for 37 ft lbs plus 150 degrees. Link to comment Share on other sites More sharing options...
weephee Posted August 24, 2007 Author Report Share Posted August 24, 2007 FWIW FSM for 2000 seville calls for 37 ft lbs plus 150 degrees. Thanks Eric for the reply. It just seems that it was a lot harder to get off so I figured it was put on with more torque. Unless I hear differently, I'll torque it to those specs. Thanks again. Link to comment Share on other sites More sharing options...
zonie77 Posted August 25, 2007 Report Share Posted August 25, 2007 I think you'll find it takes a lot of torque to get those 150 degrees. The 37 ft lbs is a seating pressure. It's enough to make sure the balancer is seated. The 150 deg is the tightening spec. Link to comment Share on other sites More sharing options...
clarkz71 Posted August 25, 2007 Report Share Posted August 25, 2007 Your going to need one of these to lock the crank in place. Tool # J-39411 Link to comment Share on other sites More sharing options...
weephee Posted August 25, 2007 Author Report Share Posted August 25, 2007 . I don't have the flywheel lock and I don't see one on Ebay so I may take it into a dealership and have them torque it to spec. Thanks for your responses Link to comment Share on other sites More sharing options...
BigCat83 Posted August 25, 2007 Report Share Posted August 25, 2007 . I don't have the flywheel lock and I don't see one on Ebay so I may take it into a dealership and have them torque it to spec. Thanks for your responses You can buy one from Kent Moore for 130 bucks. Link to comment Share on other sites More sharing options...
KHE Posted August 27, 2007 Report Share Posted August 27, 2007 . I don't have the flywheel lock and I don't see one on Ebay so I may take it into a dealership and have them torque it to spec. Thanks for your responses If the balancer bolt is not torqued to the proper spec., the oil pump will not operate. Do not be surprised is you get the "Stop Engine - No Low Oil Pressure" message. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
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