Trenton Posted May 22, 2013 Share Posted May 22, 2013 Hello, I need advice on removing the wheel seal from B model front hubs. They are currently off of the truck but I have no idea how to remove and replace the seal without potentially damaging the inner bearing and race. Help please? Thanks in advanced. Trenton Sent from my iPad using Tapatalk HD Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/ Share on other sites More sharing options...
Freightrain Posted May 22, 2013 Share Posted May 22, 2013 I'm trying to remember, but I think I just used a big screwdriver and pried it out. Nothing much to hurt that way. Or maybe a wood stick or brass punch and stick through the front hole and smack on inner race. That should force the seal out without hurting anything.On cars and light trucks, I usually leave just the spindle nut on and drag the hub over it sharply and that pops the seal off(along with the bearings leaving them undamaged). The big hubs on this might be kinda tough to do that way. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-184765 Share on other sites More sharing options...
David Posted May 23, 2013 Share Posted May 23, 2013 We have pieces of 2 x 3/8 bar cut to length with the ends rounded. They set on the bearing and provide a surface for the J end of a wrecking bar to pry the seal out. Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-184803 Share on other sites More sharing options...
Trenton Posted May 23, 2013 Author Share Posted May 23, 2013 Thanks guys, I'll get after it tomorrow. Greatly appreciate the advice. Trenton Sent from my iPad using Tapatalk HD Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-184810 Share on other sites More sharing options...
rsb502 Posted May 24, 2013 Share Posted May 24, 2013 1/2" brass punch and a 3lb hammer works great thru the front hole sit the punch on the inner race and knock the bearing out the bottom pushing the bearing with it. Just about 19years of changing wheel seals there oh and snap, cornwell and others make a race punch that works great too but I like using brass so I don't scar the bearing. 1 Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-184948 Share on other sites More sharing options...
TozziWelding Posted May 24, 2013 Share Posted May 24, 2013 I use the brass punch method, or a piece of oak dunnage cut down works in a pinch. Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-185004 Share on other sites More sharing options...
Mike Posted May 25, 2013 Share Posted May 25, 2013 I wonder if oil seeped out the bearing seal causing a repair?mike Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-185080 Share on other sites More sharing options...
Trenton Posted May 25, 2013 Author Share Posted May 25, 2013 Thank you all for the advice. I got both of them out yesterday and will start hunting for replacement seals next week. To be honest I don't believe I have ever seen a brass punch before - I will have to go looking for one or machine one for future use. Mike, My be model did not have brakes on the front axle when I bought it. I found all the parts I need to install the brakes on the axle and I am now in the process of getting everything cleaned up and installed. Trenton Sent from my iPad using Tapatalk HD Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-185089 Share on other sites More sharing options...
rsb502 Posted May 25, 2013 Share Posted May 25, 2013 I buy them from snap on and proto industrial tools, I make larger ones for work by buying a 36" piece of brass round bar stock from fastenal and cutting it in half I have them from .25"x6" up to 1.5"x18". I use em a lot at work for driving pins and bushings in rr machines, the big ones have enough weight I can use them as a dead blow in tight areas too. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-185092 Share on other sites More sharing options...
Mike Posted May 25, 2013 Share Posted May 25, 2013 I use the brass punch method, or a piece of oak dunnage cut down works in a pinch. I have used a hammers wooden handle. A brass punch would be the best tool. mike Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-185093 Share on other sites More sharing options...
Mike Posted May 25, 2013 Share Posted May 25, 2013 Thank you all for the advice. I got both of them out yesterday and will start hunting for replacement seals next week. To be honest I don't believe I have ever seen a brass punch before - I will have to go looking for one or machine one for future use.Mike,My be model did not have brakes on the front axle when I bought it. I found all the parts I need to install the brakes on the axle and I am now in the process of getting everything cleaned up and installed.TrentonSent from my iPad using Tapatalk HD No i've seen oil seep from the inner wheel seal. Gets all over the tire if you drive it. That is what had me wondering if you were changing the wheel seal cause of leakage. mike Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-185096 Share on other sites More sharing options...
Jack Januario Posted May 31, 2013 Share Posted May 31, 2013 1994 R series front hub has a little red cap in the center. It fell off and is leaking oil. I need a part number to get a replacement so I can use it this weekend. either that or MacGyver to jimmy-rigg it Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-186189 Share on other sites More sharing options...
thomastractorsvc Posted May 31, 2013 Share Posted May 31, 2013 1994 R series front hub has a little red cap in the center. It fell off and is leaking oil. I need a part number to get a replacement so I can use it this weekend. either that or MacGyver to jimmy-rigg itStop by any truck stop they should have them next to the candy racks or at least that is where I have seen them and bought them, they are pretty common. Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-186191 Share on other sites More sharing options...
MACKS Posted May 31, 2013 Share Posted May 31, 2013 1994 R series front hub has a little red cap in the center. It fell off and is leaking oil. I need a part number to get a replacement so I can use it this weekend. either that or MacGyver to jimmy-rigg itShould be a number on the hub,take it to Mack or truck parts store,get some extras.. Quote Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-186192 Share on other sites More sharing options...
rsb502 Posted June 1, 2013 Share Posted June 1, 2013 The hub oil cap is pretty standard only one or two variations on the fill hole, definitely put a plug in it to keep oil and dirt out you can get a whole new cap with the plug for not much or a pack of a couple of the plugs for a couple bucks. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/31285-wheel-seal-removal/#findComment-186334 Share on other sites More sharing options...
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