2 piece pulley separated?

So its been a long road, put the fabled 3g alternator with the Taurus fan in. I went through a rough patch where i kept going through belts...think i ironed that out.
Now this afternoon this happened


The lower pulley, came apart. Looks like its two pieces held together by a gasket or something?

This is whats still on the engine


This is what came off


Any thoughts?


Thanks

Your vibration damper has failed. Think of it like an oreo cookie. It's two pieces of steel with a rubber layer in between. The rubber has come unbonded from the inner piece and left the rest on the ground. Fortunately for you it apparently did it on the driveway and not out on the road. I've seen the aftermath when one of those lets go at speed.
Not too hard to replace...

Ohh ok, is this different from a harmonic balancer? Do I buy another rubber gasket & slide the outer portion back over... or do i need some sort of press... or do i have to buy a whole new assembly (inner & outer portion)? Am i even asking the right questions hahaha!

You will need to replace the complete unit. I would thank that NAPA should be able to get them. And I know that Summit Racing sells them.

If you can't find one, there's an outfit online that rebuilds them. can't remember the name off hand, but if you need it I'll try and come up with it.

BlueSteel wrote:Ohh ok, is this different from a harmonic balancer? Do I buy another rubber gasket & slide the outer portion back over... or do i need some sort of press... or do i have to buy a whole new assembly (inner & outer portion)?  Am i even asking the right questions hahaha!

Yep, good questions.
They're one in the same. It's purpose is to manage torsional vibrations on the crankshaft so the engine doesn't beat itself to death.

I would not try to put it back together.

I've seen rebuilt ones for sale on line. Pretty sure any one for a 170 will do. I wouldn't get a performance one- unless you're building a highly modified engine.

It looks like this is what I need.
http://www.napaonline.com/Catalog/CatalogItemDetail.aspx/Harmonic-Balancer-Assy/_/R-NDP6003269_0374203982

Just confirming before I start looking for cheaper.

Thanks for the help!

Says it fits a 170...

Classic inlines sells rebuilds for $85 + $50 core charge. Rockauto has new for about $92

Maybe check with some engine rebuild shops in your area,,,,,,go over to Ecology in Oceanside,,,,,see if they got something with your engine in one of their vehicles,,,,,,,

So i will be attempting to remove the Harmonic Balancer/Crankshaft Pulley using this trick & replacing it with this harmonic balancer from NAPA

in theory it should work, but is there anything I should be weary of like messing up the timing (can i mess up the timing by taking the pulley off?)

secondly if my intended procedure looks 'good' which way does a Ford 170 engine rotate (from the perspective of looking at the Front of the vehicle).

THanks guys! I'll update as I get started

You'll likely need a puller to get it off using those three threaded holes. The bolt is RH thread. I had a couple beers after work(disclaimer), and don't care to think about to much but I'm pretty sure the rotation of the engine is CW. I would try a breaker with the engine in gear first. If that wrench comes look it could be pretty frightening. If you use that method be sure and pull the coil wire off the distributor first so there is no chance it fires. And no, there is no way you can affect the timing by puller the dampener. The crank gear is still in place.

Do your best to hone the bore of the new dampener to slide on if it seems to tight at first. Sometimes they can be so tight you will actually hit the 90 ft/lbs of torque required on the bolt before it seats. Iow, try to seat the damper pulley before you put the bolt in and not rely on the bolt to seat the pulley if at all possible. Also, lube the snout that goes through the seal on the timing cover and the seal itself with a light coat of grease and be careful as it passes through it, that it slides through w/o catching the seal

Also, I'm still a little concerned about your voltage reg wiring. A full field load from a 130 amp alternator could cause this problem. It could also overcharge your battery with catastrophic results.

The keyway in the crankshaft basically is the timing mark,,,,,,,AND you need a harmonic balancer with the keyway that matches the marks on the timing cover,,,,,,you need a new timing cover seal,,,,,,,,if you run into problems removing the bolt and pulley and pressing on the new pulley, I got enough tools to come up there and help you out,,,,,,,,,,

If he's to replace the seal it will require removing the timing cover, don't forget to buy a gasket for that to, and make sure it comes with the neoprene part that seals to the oil pan.

,,,,,if that damper failed, that seal cant be far behind,,,,,,,a leaking oil seal blowing back on the hot exhaust pipe sure isnt pleasant,,,,,and it looks kind of oily right now,,,,,,,,,

I agree. But then it becomes a while your in there situation  
Might as well replace the timing chain, you know that damn thing is way stretched out...

Easy enough once you're there. You like how I'm making more work for you Don

He could always make a new notch or mark on that pulley if it's for a 70's smog era 200, may not be spot on but if he check's it after he get's it back together he'll have a baseline.

He has to decide how serious he is about his Ford,,,,,,,does he just want to get it to run so he can sell it or wants it to run correctly for along time,,,,,,I kinda believe that every van is worn out and you need to see what you got then if you have enough time, skill, equipment, space or money to fix it,,,,,,the timing chain sure is a critical piece of equipment,,,,,,definitely worth its price,,,,,that Harmonic balancer sure seems over priced,,,,,,,

Sage words my friend

and yeah that seems pretty salty. Here's the same one for $92 + shipping. Still kind of spendy compared to junkyard prices but very convenient

https://www.rockauto.com/en/moreinfo.php?pk=1821702&cc=1333954&jsn=528

Damn it hahaha. Own this van has already taken me into uncharted (mechanical) waters & it looks like i gotta keep going further hahaha. I really wish I had an auto manual for this guy.

Most (if not all) of that oil is from my very first oil change where pulled the oil filter off & didn't realize the rubber seal stuck to the engine, so when I put the new filter on the seal-on-seal didn't seal & after 40 miles down the road start spewing oil everywhere... I thought i fried the engine & coasted the Van to a gas station that luckily had a mechanic's bay & the dude diagnosed the problem w/o even looking at it "ohh is that a 170? ohh yeah we call those things the 'gutless wonder'"

that was nearly 3 years ago hahah, but yeah i don't know when (if) the timing chain has been changed... more to research gosh o_0

thanks for the input

you guys are awesome

It all comes down to ,,,,,, what do you have more of,,,,,,Money or Brains,,,,,,,,its nice to have money and then all you do is pay someone else to take care of your problems,,,,,,but most of us have to figure out how we can get things done with what we know and got,,,,,,,and its one step at a time,,,,,,,,,looks like you got a lot of information here to help you get started,,,,,,,,

,,,,and what Seth said about that Alternator needs to be checked,,,,,,,that Alternator could be so hard to turn, that the crankshaft just spun the harmonic balancer pulley right off trying to turn the alternator,,,,,,,so after you put it all together, run the engine with the field wires disconnected and then plug the wires in and see if that belt starts screaming,,,,,,,

these are the real tools for the job,,,,,,

a puller to pull the pulley off the crankshaft,,,,,







,,and another one that screws into the crankshaft that has a nut and bearing that pushes  the pulley onto the crankshaft,,,,,,,

donivan65 wrote:that Alternator could be so hard to turn, that the crankshaft just spun the harmonic balancer pulley right off trying to turn the alternator

Could be some kind of short in the wiring maybe to ?

I just ordered the Harmonic Balancer from RockAuto for $92 + shipping.... easily the best price for a new one that I found. Thanks for the heads up on that.

I'll tinker with the alternator field wire, though if i'm most honest I don't exactly know what I should be doing (or for that matter, what I did do hahaha)

Is there a way to check the timing chain/belt (as i believe seth pointed out, "since I'm there"... & i don't know if it needs to be changed or not??) Is there a manual floating around somewhere I can purchase (or keep an eye out for, as I'm a total cookbook mechanic... i can follow instructions & pictures, but I cant' just dive and figure it out for myself.. i'm not that smart hahaha!)


I'm always blown away by the generosity of this community its like a fraternity minus the douchy aspects that come with such.

expect more questions from me on this thread hahaha

thanks guys!!!