I8ASaleen

iTrader: (9)

Hello folks, so I was called over to a fellow tech-ers house last week b/c he had a crank hub that wouldn't come off. And it still won't come off. I have broken the bolts on two separate pullers and stripped out a third one. And yes I've seen the hub puller vid so no need to post it.

All of the pullers have used grade 8 bolts, nuts, and washers that weren't attached to the hub itself (just pushed thru and used nuts on the backside). I am at a loss right now. It has been doused in PB blaster and beat on by several dead blow hammers but it still won't come off.

My last resort is to have a friend of mine chop off part of the center rod and weld on a slide hammer b/c it does seem to move back in when you hit it with a hammer.
Suggestions?

1toofastlt1

iTrader: (4)

The slide hammer is a bad idea. It might get the hub off but it can damage the thrust bearing. Same with putting a hub on. You shouldnt hammer it on

1toofastlt1

iTrader: (4)

Can you heat the out side of the hub? Use a propane torch and while using the puller heat the outside of the hub.

Atomic

iTrader: (37)

Are you talking about the front crank pulley?

I doubt heat will work because it sounds like its welded itself to the snout....if its this hard to get off, who the hell put it on?

Do the pullers you are using have fine or coarse thread?

F0x Slaughter

Using an impact gun?

BTC

I'm not a master mechanic, but I would try heat.

93M6Formula

Are you using just a standard puller? They don't work on an LT1 like a standard SBC. You have to improvise a little and grab a chunk of 7/16-20 Threaded rod and run that into the crank first and use that as the pushing point for the puller.

96z28_lt1

iTrader: (3)

not to be a smart *** but you did take the bolt out in the middle of the hub right? Also i used a bolt puller system instead of a regular puller

BALLSS

you really want to get one of the Kent Moore LT1 tools for this. There are "home made' options that people have used but this puller/installer is plug & play and absolutely effortless.

ebay is wher I got one

wrd1972

iTrader: (12)

Winner winner chicken dinner.
Also PB blast inside the hole. Its amazing how well that stuff will wick into every tiny crack and crevice.

Do no hammer it off.

I8ASaleen

iTrader: (9)

I'll have to look into that 7/16-20 threaded rod, we were actually looking for that the other day but didn't find any. I am using a good ole Harbor Freight puller with some 7/16-20 fine thread grade 8 bolts/nuts/washers to pull on.

I wish I had time to wait for that kent-moore tool but we need to get it done this week. I may try to find some chain to keep the hub from spinning as I have been using a 2x4 on the flexplate to stop the movement (not working very well lol.)

No heat b/c he doesn't wanna torch his opti and doesn't wanna take it out. Thanks for the input, I'll keep looking/trying things out

SS RRR

iTrader: (2)

If it's a stock hub you should be able to take the opti off.

jrwilliams95z28

i feel your pain, mine was a son of a bitch to.

I8ASaleen

iTrader: (9)

We said **** it and put the stock balancer back on it. He was gonna use an ATI superdamper but we're gonna wait on a superduper LT1 specific hub puller. Broke 2 puller bodies with the chain method and still no dice

jasonz28camaro

iTrader: (13)

There is a video on YouTube that shows how to do it. You have to stick something to bottom out on the crank like someone mentioned above.

BALLSS

The Kent Moore puller/installer as is will take off/put on the stock hub.

It "can" be used also for the ATI but because the ATI hub is diffrent than stock you have to "improvise".

I have the ATI and also a Eagle forged crank where the center front hole in the crank goes WAY deeper than stock so you have to use a socket & spacer (washers or something) to keep the KM removal tool part from going in the 2+" in the crank thus not allowing enough length of the removal part (it wont be long enough) to work. On install you just need to buy a large (measure the ATI opening) grade 8 washer as the center opening of the ATI hub is larger than the OEM hub

pic of the "mod" to pull the ATI hub using the KM tool

If there is a specific install/removal tool for the ATI unit...it "may" also work on the stock hub.

slingshot928

I know this probably isn't the best way, but I threaded the crank bolt back in a little and used a puller and it came right off.

F0x Slaughter

I just put a impact socket in the center then used the puller against that. Popped right off, didnt even mess up the socket.

I8ASaleen

iTrader: (9)

I used many of these methods on this thing, it just wouldn't budge. I'll have to remember that part about the ATI install.

wrd1972

iTrader: (12)