When I changed the bearings in my front van wheels I found using a baseball bat end on and tapping the handle of it with a large hammer seated the bearings accurately. On Sat, Oct 1, 2016 at 4:26 PM, Conbert Benneck <chbenneck@gmail.com> wrote:
On 10/1/2016 1:49 PM, John Schinnerer wrote:
Another reason to take it to the pros is that you really need proper fitting tools to drive out the outer races; and to replace them.
Using a long punch and a big hammer is a very poor way of doing it.
The objective is it to remove the inner races evenly, and you can only do this if you have a tool that just fits the bore and that exerts pressure evenly on the inner races surfaces.
Inserting them again involves also using a proper size tool to make sure that you don't cock the bearing race in its housing and deform it by using a "big" hammer.
You are dealing with precisely machined parts, and they have to be removed and replaced properly if you want to do the job correctly.
I made my own set of tools, but it is not worth the effort for bearing changes every 5 years or so, depending on mileage....
Take it to the pro; keep you hands clean; and let him do the job properly.
My $0.02 worth of experience.
Connie
Yep...here's a nice hi-res two-part from "D-Ray's shop":
https://www.youtube.com/watch?v=2_9iBXjhaaM
And one from BoatUS, slightly lower video quality: https://www.youtube.com/watch?v=jMX3m-uZcr8
Note that in the latter video, he leaves the wheel & tire on the hub, which will actually make driving the old races out and new races in easier for the average DIY person than with the wheel & tire off the hub (as in the D-Ray video). Otherwise, same basic info. Pretty straightforward, and as Dave said, messy. Don't do it bare-handed like either of these guys, wear some disposable nitrile gloves.
cheers, John S.
On 09/30/2016 02:07 PM, Conbert Benneck wrote:
On 9/30/2016 3:31 PM, David Grah via montgomery_boats wrote:
Hi David,
Go to YouTube and look up replacing trailer wheel bearings. I found a whole series of videos showing you how it is done.
Connie
Yes. Thanks for the reference, Dave. I don't think I pump up my Bearing Buddies too much but I do get some grease coming out of them and getting here and there. It is likely time to replace the seals. One thing I am completely naive about is rebuilding trailer hubs. I assume bearings, bearing races, and seals are all replaceable at the same time and by an amateur such as myself, but I don't have a clue where to get the parts or how to know what to get. I could image the races may require some special equipment. Can anyone share any experiences or provide any advice? Thanks.
David GrahBishop CaliforniaMontgomery 15 - Sky
Message: 22 Date: Fri, 30 Sep 2016 10:00:02 -0600 From: Dave Scobie <scoobscobie@gmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Subject: Re: M_Boats: What to do if you want to put an M-boat in Salt water fora time.. Message-ID: <CAGjBOA4DAwPPp5feTmaf0HMptrzMR0Ada1-SYX4g99EHjZ1osg@mail.gmail.com> Content-Type: text/plain; charset=UTF-8
a double axle trailer for a M17 would be huge overkill. save you money, if you are worried about a double blowout, and get a second spare tire on a mount.
also, i would be very surprised if you trailer doesn't already have bearing buddy's. if there is a zerk in the center of the hub you already have them. if not then you don't.
DON'T overcharge them. DON'T add oil every time you launch or retrieve. you check the charge by pressing on the edge of the bearing buddy cap (the zerk is installed into the cap). if the cap wiggles when you apply pressure you have enough oil. overcharging a bearing buddy will blow the hub seals ... usually the inner seal. will spray everywhere making a mess of the wheel rim, boat hull, etc.
see this for my detailed discussion about bearing buddys and hub maintenance -
https://sagemarineblog.wordpress.com/2015/03/26/safer-trailering-hubs/
:: Dave Scobie :: former M15 owner #288 - http://www.freewebs.com/m15-name-scred :: M17 #375 SWEET PEA - http://www.m17-375.webs.com :: Sage 17 #1 - AIR BORN - http://sagemarine.us/sage_17.html :: Sage 15 sloop #001 - ASOLARE - http://sagemarine.us/sage_15.html :: SageCat #000 - SAGECAT - http://sagemarine.us/sagecat.html