fr3533

ill make a long story short 97 4runner 3.4 2wd, i posted a couple of days ago reguarding my belts screaming, well i to off the ac and alt belt it still squelled, i pretty much narowed it down to the power steering pump or belt, so i replaced the power steering belt and it fixed the squeeling, so i put the alt and the p/s belts back on i drove for 1 day quiet as a mouse, tonight im driving i start hearing some banging a squeeling i get home and figure it the power steering pump gone bad, upon inspection i see my harmonic balencer cocked to on side i took the bolt out luckly the bolt and crank are not wollerd out, the harmonic balencer has a sleeve in it mine is all wollerd out, i called auto zone the sell a replacement sleeve for 7 bucks, i wonder if the whole time i was hearing the squeeling it was the blancer comming loose? anyone

fr3533

anybody

mt_goat

Was the crank bolt loose? It's pretty common for those to work loose if they are not torqued to the new spec of 217 ft-lb. The old spec was about 185 ft-lbs. This often happens because the new spec never made it into the big data base that lots of mechanics use. We usually see them on here after a timing belt was replaced and the bolt improperly torqued.

When I installed my 3.4 I checked the torque on the bolt to make sure it was tight.



You need some kind of SST to hold the crank, I made this one from some scrap steel:

97ltd4x4

That's a very nice custom special service tool you got there....

I have one of these,it works,but that one you have is a monster!!!

http://www.toolsource.com/toyota-har...-p-103978.html

mt_goat

That looks good too.

BTW for anyone looking to make one I got the idea & dimensions here:

http://www.4x4wire.com/toyota/maintenance/timing_belt/

Shawn6string

I replaced my timing belt, my harmonic balancer was loose as well, just spinning freely. In a last minuite dash to get it back together I bought a tube of window urethane and glue the hb back together. BUt here is my problem. Now I think the Crank seal is leaking, I will be replacing it soon, The question is What did I do to make it leak. It wasn't leaking before

fr3533

should i be able to just pull the balancer on and off the crank with ease i thought you had to press these things on

97ltd4x4

If the urethane gets behind the balancer and hardens,it will tear the seal up=leak...


.........

It usually takes a bolt-grip-puller to get the crank off,will need long metric bolts for it...you can do it carefully with 2 pry bars and even pressure if you are carefull,but I recommend the puller...Once its off, a little light cleaning with sand paper if any rust and a quick spray of silicone lube spray...It will slip back on like butter