Starter trick to remove harmonic balancer crank bolt

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trekrok

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Yes thats a great idea. I guess I should invest in an impact. I rarely need one though. A breaker bar works for me. But in this case the impact is king.
Yeah but sometimes an impact won't even do it. I had a Honda that I couldn't break with anything. Weighted socket zipped it right off.
 

montesa

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If you can get an impact in the area.
One other great way is to wrap the serpentine belt around the balancer and some other thing with a pulley and run one end of the slacked belt under the crank pulley.

You probably can't follow that explanation so here is a video close to it.


I thought about trying that. Next time I'm going to get a piece of 3/8" bar stock and drill some holes in it. Then bolt it to the harmonic balancer and the alternator bracket. I can also use it for other things later on. If I don't just get a good impact. I've about spent as much as the truck on tools at this point.
 
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In my life they have come up with a lot of hard removal tools. Those electric conducive bolt head heaters are remarkable. And there is so much more, multipliers, numerous types of hard areas to get to tools!

Heat and welding gets most tough ones loose, if accessible.
 
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I did that once on 4.7 Toyota when my crap impact couldn’t break one loose. It worked instantly. Then another time i was doing timing belt on a rusty neglected Tacoma 3.4. Starter trick didn’t touch it! After 3-4 bumps I got afraid of messing something up so I ran to harbor freight and bought a ballsy impact that busted it loose
Gotta ask what was wrong with the 4.7 engine. It's said to be pretty trust worthy.
 
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Gotta ask what was wrong with the 4.7 engine. It's said to be pretty trust worthy.
Nothing at all! It’s still in my wife’s sequoia running like a sewing machine at 240k.

Crank pulley came off only due to the every 100k timing belt/water pump maintenance
 

montesa

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Harmonic balancer rubber failed. Lasted 35 years. Not bad. Wore a ring in the timing cover. Going to just put a new one on and keep driving for now. When I have time I'll do all the gaskets at once and put on metal timing gears.
 

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