Defeated!!!!!!

[dingdongs]

Re: Defeated!!!!!!

the part was 1/4 thick and about an inch wide and about 1/8 overhanging each side of the inner race when fitted.obviously a hole for the threaded rod to pass through .this could be passed through the centre of the bearing with your fingers and twisted into position.now you say how you get the nut on the back.well!!the nut was layed in the area on the aft side of the rubber diaphragm in which my tool was passed through too. the threaded bar went through the bearing ,through the tool and then i screwed the nut on which was being held slightly with the rubber diaphragm.you could have welded the nut on or put a thread through the bar.its fiddly but it worked for me.will try and get pictures uploaded to the site at a later date as im in the falklands until next week.the above tool would work too but i manufactured mine in about half an hour with a hacksaw a file and a drill.regards steve

 

[flyer4ever]

Re: Defeated!!!!!!

I'll take a look at it tomorrow. Have you been able to do it this way before? I have a 3.0 motor. That would be great if I could get a washer and nut on it from inside and have my son turn the rod from the outside. Thanks alot, Ernie.

 

[45Auto]

Re: Defeated!!!!!!

Just because the hole is round, it doesn't mean that the piece you put through it has to be. You don't need to get behind the bearing from inside the boat, you do it all from the outside.

I've been using this axle bearing puller threaded onto a piece of 5/8-18 fine thread rod since 1997. Brace a couple of heavy pieces of aluminum or steel across the back end like Bondo said and crank it right out with a nut. Can't count how many gimbal bearings I've pulled that people couldn't get out with slide hammers. It pivots to fit through the bearing:

You can get an axle bearing puller here:

http://www.amazon.com/dp/B000OUXAIA...e=asn&creative=380341&creativeASIN=B000OUXAIA

I had an old transom assembly sitting on the floor of the garage, so you can see how it works:

Folded to fit through bearing:

Opened and clamped up against bearing with nut and washer:

What it looks like from the back side:

Haven't found a bearing yet that it hasn't pulled with ease. Shouldn't be surprised I guess, since that's what it's made for ....

5/8 grade 2 bolt minimum proof load is 55,000 psi. That means it's good for about 17,000 pounds. To get the same force with a 20 pound slide hammer would take 850 G's. That means you would have to have the hammer moving at 32.2 x 850 = 27,370 feet per second and have it stop instantly when it hits the end of the puller!!! That's a little over 18,650 MPH - more than 9 times faster than a .30-06 rifle bullet.

 

[bruceb58]

Re: Defeated!!!!!!

45Auto...excellent post.

 

[45Auto]

Re: Defeated!!!!!!

Figured I might as well go back out after supper and show finishing pulling the bearing. Literally took 4 minutes. Time stamp on the first pic is 8:25:32, second one is 8:28:34, last one is 8:29:24. Hardly any load at all on the little adjustable wrench I was using. It's just as easy with the bellhousing in place.

8:25:32 - Set up

8:28:34 - You can see the bearing coming out.

8:29:24 - Bearing out.

 

[Bt Doctur]

Re: Defeated!!!!!!

Excellant demonstration

 

[SuperNova]

Re: Defeated!!!!!!

Good post 45auto. That's the same type of puller that I use. Mine came in a kit with a slide hammer and was originally designed to pull axle bearings and hubs on automobiles. I try the slide hammer first, it's pretty beefy, but if it doesn't work I set it up as a press pretty much the same way you did. Haven't lost a gimbal battle yet.

 

[BF]

Re: Defeated!!!!!!

Flyer... did you try a 20 lb slide hammer?? It took a few good whacks with the 20 lb'er to get mine out... I doubt a 4 or 5 pounder would've done it... I got one as a "loaner tool" from a local automotive place... it was called a "Master Axle Puller Kit"... basically a big ole slide hammer that could be set up as either a 2 or 3 jaw puller. While you're there, get a "bearing seating kit"... has a bunch of different sized rings/disc's that can be used to drive the new bearing (from the outside race, not the center).

 

[madgadget]

Re: Defeated!!!!!!

5/8 grade 2 bolt minimum proof load is 55,000 psi. That means it's good for about 17,000 pounds. To get the same force with a 20 pound slide hammer would take 850 G's. That means you would have to have the hammer moving at 32.2 x 850 = 27,370 feet per second (a little over 18,650 MPH - more than 9 times faster than a .30-06 rifle bullet) and have it stop instantly when it hits the end of the puller!!!

17000lb = 7711 KG.
18,650mph (8337 m/s)
20lb hammer (9.07kg)

Kinetic energy of 20lb hammer (9.07kg) @ 18,650mph (8337 m/s) = 315,207,755 newtons of force!!

That's 70,861,522 lbs of force...

Just a little bit more than 17,000 lbs..



If you hit any part of your boat with a 20lb hammer at 18,650 mph there would probably be no workshop left let alone engine hahahaha... That a whole lot of energy...

However very nice tool I like that a lot

 

[Fun Times]

Re: Defeated!!!!!!

Good post 45auto. That's the same type of puller that I use. Mine came in a kit with a slide hammer and was originally designed to pull axle bearings and hubs on automobiles. I try the slide hammer first, it's pretty beefy, but if it doesn't work I set it up as a press pretty much the same way you did. Haven't lost a gimbal battle yet.

X 3 on the axle bearing puller, That is the tool I use also, You could also find the axle bearing puller tool at the harbor fright tools store only, [Or "MAC" tools, Ect]. But I could not find it online at harbor fright, Even with knowing the part number to the kit. Good post 45Auto, I have been meaning to talk about that same tool in the past, But I could never find the puller online to show it, So I just passed on helping out with the pulling of the bearing threads before, Good Job

 

[King P.V.]

Re: Defeated!!!!!!

The axle puller is the NUTS!! However, If I have a stubburn gimbal bearing, and my trusty slide hammer will not work, I get out my heat gun, and impress some hot air inside the bellows, being sure to not damage the rubber. A couple of times letting the bearing/housing get fairly warm/hot and then cool usually does the job. I have a very long (16") drill bit that relieves the pressure. It works well but the main thing is ....patience!! And some heat!!

 

[MTribe08]

Re: Defeated!!!!!!

Just because the hole is round, it doesn't mean that the piece you put through it has to be. You don't need to get behind the bearing from inside the boat, you do it all from the outside.

I've been using this axle bearing puller threaded onto a piece of 5/8-18 fine thread rod since 1997. Brace a couple of heavy pieces of aluminum or steel across the back end like Bondo said and crank it right out with a nut. Can't count how many gimbal bearings I've pulled that people couldn't get out with slide hammers. It pivots to fit through the bearing:

You can get an axle bearing puller here:

http://www.amazon.com/dp/B000OUXAIA...e=asn&creative=380341&creativeASIN=B000OUXAIA

I had an old transom assembly sitting on the floor of the garage, so you can see how it works:

Folded to fit through bearing:

Opened and clamped up against bearing with nut and washer:

What it looks like from the back side:

Haven't found a bearing yet that it hasn't pulled with ease. Shouldn't be surprised I guess, since that's what it's made for ....

5/8 grade 2 bolt minimum proof load is 55,000 psi. That means it's good for about 17,000 pounds. To get the same force with a 20 pound slide hammer would take 850 G's. That means you would have to have the hammer moving at 32.2 x 850 = 27,370 feet per second and have it stop instantly when it hits the end of the puller!!! That's a little over 18,650 MPH - more than 9 times faster than a .30-06 rifle bullet.

Wouldn't expect anything less from you!! Very helpful.

 

[JustJason]

Re: Defeated!!!!!!

Donny my man, can you make this thread a stick in the Adults Only section? I'm sure it would help out more than a few folks that lurk around here.
JJ

 

[flyer4ever]

Re: Defeated!!!!!!

Thanks to all for the many responces to this common problem. At least now I have a much better idea of what i'm dealing with. I'm going to try out some of these ideas starting with the simplest to the hardest and will let you how I make out. Again thatks to all,Ernie

 

[bruceb58]

Re: Defeated!!!!!!

There would be no question in my mind what to do. Buy the tool that 45Auto posted and be done with it.

 

[Bondo]

Re: Defeated!!!!!!

Ayuh,.... I can see myself havin' to aquire a copy of them....
Building it in my machineshop consisting of a drillpress,+ several grinders would take too long....

 

[flyer4ever]

Re: Defeated!!!!!!

OK I get it! I'm ordering the axel pullers. I hate to ask but there are several sets on Amazon. Does brand make a big difference?

 

[ifallsguy]

Re: Defeated!!!!!!

[QUOTE/]5/8 grade 2 bolt minimum proof load is 55,000 psi. That means it's good for about 17,000 pounds. To get the same force with a 20 pound slide hammer would take 850 G's. That means you would have to have the hammer moving at 32.2 x 850 = 27,370 feet per second and have it stop instantly when it hits the end of the puller!!! That's a little over 18,650 MPH - more than 9 times faster than a .30-06 rifle bullet.[/QUOTE]

Easy to do.

Just tie a tow rope to the back of the shuttle

 

[spaldy]

Re: Defeated!!!!!!

Been looking at going with an older alpha 1 series outdrive boat (always had outboards) so this has been really instructional. I assume that I'll have to do this some day.

Question. how do you get the new gimbal in place. Someone referenced you had to have a tool for that also?

Thanks!

 

[artificialreef]

Re: Defeated!!!!!!

As i was reading this thread i realised. Damn i just did my axle bearing on my tow rig last week. 3/4 cheby. You dont even have to buy that tool if you dont want to. Adv. Auto rents the whole kit for free. You have to add the washer attachment pictured though..