|10-04-2012 09:12 AM|
stuck harmonic balancer bolt
Thank God I just got this dreaded bolt off!!!
All it took was a long pry bar, a 3/4" socket, a hydraulic car jack and some wood jammed down through the now-empty cylinders to stop the crank shaft from turning. Yes this has turned into a total rebuild since a valve seat came loose and ruined the pistons.
|08-26-2010 11:29 AM|
|sailor||Posted via FF Mobiledisciplerocks - if you`ve got time to burn, check out the thread mentioned earlier when doc spent weeks in his driveway on an issue that started out this way..... First post just asked if an electric impact might do the job, ended up with a LONG project Grumpy helped lead him through...|
|08-26-2010 11:25 AM|
Where's the OP? Has he already broken this loose- or broken the head of the bolt off?
|08-26-2010 10:15 AM|
^I see what you are getting at, but heat can be your friend. It will get rid of any locktight, rust or anything that could be causing it to be siezed up. Just be careful.
Posted via FF Mobile
|08-26-2010 10:08 AM|
|sailor||Posted via FF MobileUmmm.... I think you`ve got it backwards, heating bolt to expand it would make threads tighter in the hole.... Unless you`re thinking it would get enough longer when heating just the end to reduce the tension on it.... Heating bolts generally makes them snap easier & they`re tighter in whatever they screw into - heat on NUT (crankshaft in this case) would expand it, but crank isn`t accessable & I wouldn`t want to heat it much anyways! The last person with this issue had an overtorqued bolt that caused too much "sticktion" under the shoulder to turn out with reasonable force. bolt came out easily once head was cut off & tension released. That`s why I mentioned higher torque impact wrench, it`ll break or come out & removal/replacement becomes easier then - avoiding the PITA of trying to grind a LARGE head off in a confined space.....|
|08-25-2010 11:14 PM|
|jjzx2sr||The best method may still be to apply heat to the bolt and hope it expands it slightly.|
|08-25-2010 05:36 PM|
|sailor||Posted via FF MobilePersonally I`d try to get it with a 1" gun if it didn`t budge, even breaking it that way would be easier than the grind the head off method.....|
|08-25-2010 05:34 PM|
|sailor||Posted via FF MobileAfter the last long disaster when one of those wouldn`t come out, as mentioned above, I`m still wondering if access to a better/larger air impact might help. Like a good 3/4 inch instead of the 1/2 inch guns that don`t seem to do it....|
|08-25-2010 02:31 AM|
lol yes they do.
i bet my nitrocat 1200 could undo that sucker though :)
|08-25-2010 02:02 AM|
|jjzx2sr||I was wondering the same i guarantee my IM6500 snap-on with approx 200+ psi line pressure would take her off lol. Then again i do destroy the guns quite often due to the fact they recommend 125 psi working pressure lol.|
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