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420A crank pully get off!!

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selmerguy

15+ Year Contributor
1,811
23
Nov 14, 2004
Killeen, Texas
anybody have trouble getting the bolt that holds the belt pullys onto the crank off? what is the best way to do this? is there a special tool i can buy for that? i would also like to find a tool to hold my cam gears while i torque the bolts where can i get that?
 
When I did mine( I had to put it back on, my a/c tensioner is shot and could not loosen it :mad: ) I put a pry bar, not a crow bar in between the opening on the pulley and where the oil pan is sealed(That way I wouldn't bend the pan and there was enough pressure to hold the crank pulley- effectivly stopping it from moving), and used my breaker bar. It's torqued in there at 100 ft lbs, so it's kind of tough. You could also "shock it" put your breaker bar and smack it with a heavy hammer, usually gets it loose enough to finish removing it.
 
what would holding the brakes do?

Use an impact gun with a 6 sided socket. If that doesn't work heat it up and put some penatrating oil on it. You can put a screwdriver of something inbetween the gaps to hold it in place.
 
i got the bolt out and then i used a puller to try to get te pulley off. it cracked the inside arm of the pully and it still wont come off. can i pull the block with out taking the pulley off?? i unbolted the block from the tranney and the block needs to slide to the passenger side a little to clear the tranny. it looks like a tight fit. guess when i get it out i need a new aftermarket pulley. good excuse to buy one :thumb:
 
Use a very long breaker bar and wedge a screw drive in the old pully. After you get it off thread in a bolt with the same threads as your old one but about 3 inches longer. rent a 3 armed pulley puller from autozone and prop it against that long bolt it will come off. when it is off, place the new pully on partially smack it in with a rubber mallet, use your long bolt that you have, place a bunch of washers on and start turnning the bolt, the washers will pop the crank in nice. Pull the bolt out put the right one in and torque to 105 ft pounds, PM me if you need more help
 
powells85 said:
If you are 5 speed you can put it into 5th gear and have a friend hold the breaks. Make use a a nice cheater bar and you should be able to get it.

Exactly, this is what i did, very easy to do. :thumb:
 
SnoopySLR said:
what would holding the brakes do?

Use an impact gun with a 6 sided socket. If that doesn't work heat it up and put some penatrating oil on it. You can put a screwdriver of something inbetween the gaps to hold it in place.

see you put it in 5th gear, which means that it takes more torque to spin the wheels since you have to spin it a shorter distance to make the wheels move the same distance as if it were in first. then, you press the brake so that the wheel wont spin. now the crank is directrly connected to wheels that are being stopped by the brakes. since 5th requires the most torque to make the wheels spin, the crank will stay still, allowing you to get the bolt loose without spinning the crank. a little late but i thought i would explain that for you. i hope it makes sense
 
I don't know about the rest of you, but I just used an impact gun... zip...off. Basically your saying use the trans to stop the rotating assembly. I don't see whats hard about this....its a bolt for crying out loud! If you can't get the bolt off, just forget about using the 3 jaw puller to get the thing off....
 
SnoopySLR said:
I don't know about the rest of you, but I just used an impact gun... zip...off. Basically your saying use the trans to stop the rotating assembly. I don't see whats hard about this....its a bolt for crying out loud! If you can't get the bolt off, just forget about using the 3 jaw puller to get the thing off....

haha well you see i was having the problem of when i applied force on the bolt, instead of the bolt moving, the whole crank/pulley would move instead. so this stopped the crank/pulley from moving, and applied all the force on the bolt. :thumb:
 
selmerguy said:
guys i said i got the stupid bolt out. but when i used my puller it broke the pulley and i still can't get the thing off.

It's aaaaallllwwwaaaayyyysss gotta be about you doesnt it!!! :p sorry i was just explaining to him why
 
It's aaaaallllwwwaaaayyyysss gotta be about you doesnt it!!! sorry i was just explaining to him why

thats funny. i am going to break that fn' thing off. more than it is allready. so to ask my question again is there room to pull just the block and not take off that pulley?
 
drop the engine down a little and get a bigger puller. Try to grab the entire pulley from the backside. I've never heard of one of those breaking, congragulations :thumb:

Hey, good reason to get an AFX one
 
SnoopySLR said:
drop the engine down a little and get a bigger puller. Try to grab the entire pulley from the backside. I've never heard of one of those breaking, congragulations :thumb:

Hey, good reason to get an AFX one

i originally hired a shop to put mine in cuz i was too damn lazy. well after an hour they gave up cuz they couldnt get the stocker off. when i finally got around to doing it, there were chunks missing from the stocker... :barf:

heres a question for you tho, and it may be stupid, but what is the puller pushing against? did you put a bigger bolt in there to push off of? if my memory serves me correct, thats what i did.... but i could be way off it was a while ago
 
I have a write up on pulling pulleys on 420A motors btw, maybe a good read for some peeps ROFL

But, i REALLY wanna see a picture of the broken pulley. The stocker is frigging built like a rock, and heavier. Sure it chips and whatnot, but i dont see the whole thing breaking to the point where you cant get it off.




BTW..........you DID drop your motor, right??? If you dont drop the motor getting the pulley off will be next to impossible since it will hit the frame at the topmost part of the pulley.
 
yes the motor is down. i used the stock bolt to try to pull the thing off.(got to replace that too bent the shit out of it. will try to get a pic in my gallery soon. right now it makes me :barf: . i can turbo a car, i can take a head off the car, i can lower the car with coilovers, but i can't get a pulley that my chilton book spends less than four sentences telling me how to get it off.... maybe i can get some c4 from work. i am sure that will work :thumb: . car go boom again. :tease:
 
Check the threads inside the crank....using the bolt in some cases to pull the pulley off can massacre the threads on both the bolt and inside the crank hole.
 
i give up. i have broken two pullers and one heal pry bar. i hope i can pull just the block without pullin' that thing off. it looks like i can take it out from the bottom for sure. we will see.
 
selmerguy said:
i give up. i have broken two pullers and one heal pry bar. i hope i can pull just the block without pullin' that thing off. it looks like i can take it out from the bottom for sure. we will see.
Sorry, been busy workin' on both cars (97 RS and AWD) so I couldn't jump in here. BTW Gsgoinfast, that rear mount was made for a turbo - that's why no fitty. Anyhow, yeah pullin' the pulley using the bolt will requre a longer bolt. I'm guessing that you did not get it to move that far (to the point of needing the longer bolt). If you bent the bolt (that's a pretty big bolt to bend!), I am guessing that it did not stay centered. As for pulling with the pulley on, I believe you can do this but you probably will need to do some jiggling. What will probably help you (if you can't make the angle) is to pull out front roll stop mount. that will allow you a little more angle of the tranny. I have pulled from the bottom before but never with the pulley on so I can't say for positive. Good luck to you. Oh yeah, if I was you I would be really curious as to what made that pulley so hard to get off. They can be a bi*** but they should still come off without bending your bolt. Was there something that beat the pulley into a warped mess (i.e. crankwalk?)? Was it heated up too much over time? etc..
keep us posted,
MB
 
crankwalk!!!!!!!!!! i thought that only happend to the 4g63... i don't really know what it is or how it would happen. when i pull the rest of the motor i will have the crank checked and balanced anyway. so again, i will just have to wait and see. :barf: wonder if i can just cut that pulley off. i am replacing anyway?
 
selmerguy said:
crankwalk!!!!!!!!!! i thought that only happend to the 4g63... i don't really know what it is or how it would happen. when i pull the rest of the motor i will have the crank checked and balanced anyway. so again, i will just have to wait and see. :barf: wonder if i can just cut that pulley off. i am replacing anyway?
Don't freak out about the crankwalk!!!!!!!!! ROFL Though it can happen to ANY vehicle, it is an unlikely scenario. But something has to have happened to either warp the pulley out or pound it on (unless someone used PL400 to glue it on :p ). Cutting that thing off would be a real bi***. I think once you get it out you will have more accessibility to get off. Leverage will be easier.
Let us know,
MB
 
ShadowWulf said:
BTW..........you DID drop your motor, right??? If you dont drop the motor getting the pulley off will be next to impossible since it will hit the frame at the topmost part of the pulley.
Yeah I decided to put my UDP on w/o dropping the motor. And I beat my pulley to all hell. It's on... it works but its ugly
 
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