Jigsaw Leaking Out of Bearing

[RobertTaylor]

if you have an automotive machine shop nearby they may be willing to help. you would need to get the seal out and hopefully there would be some id numbers on it. a good bearing supply house should be able to find a replacement.

[davem1066]

I was able to remove the clip that keeps the outside bearing on and it slid right off...i don't see any oil seal now that the bearing is off the shaft.

Is it supposed to be rubber? Does anyone of an assembly diagram so I can see what it is supposed to look like?

Dave

[davem1066]

Yes, if you continue to operate the Jig Saw with low or no oil, you will damage the drive shaft Assy. and bronze shaft bushings. There is an oil seal (502264 #74) in behind the outside bearing that has dried out and may need replacing. The sealed bearing is to prevent the shaft from horizontal movement. I will see if I can find a replacement oil seal later today. You need a bearing press to remove/install the outside bearing. I have disassemblied several broken jig saw housings for the parts and bushings but the oil seals were dried/worn out. I did saved the oil seals for later measurements.

The above oil seal part number is from a 1965 Bulletin #502301 and not available from Shopsmith.

There are cans/bottles of car engine/transmission sealers/solutions that expand dried out oil seals that you may want to try. Just read the label to see that seals are affected. I would use the lighter weight solutions. I would put 2 ounces of this solution in the housing and lay the jig saw with the drive hub down and see if it continues to leak over several days. I would actually operate the jig saw with these oil solutions to see if the oil seal continues to leak. I have not tried this on a jig saw but used them in car engines and transmissions in my younger years.

Bill,

I disassembled the drive shaft and notice that the outside (and possibly inside) bronze shaft bushings appear to be adversely worn probably due to not adding oil before first using it in the 1980's. I will need to replace those bushings. There wea also no outside oil seal at all (part #74) that will need to be added.

I was going to use this to make Christmas gifts this year...sure hope we can find bushings and a seal soon :-)

I did call Jacob in Virginia Beach...he was helpful but did not have a source of parts we could use.

Dave

[eartigas]

I need some guidance to replace the seals in a greenie jigsaw I am cleaning and repairing.
I have identified the two seals and would like to replace them. What I am not sure how they can be replaced. I see a metal ring before the rubber part, is this also part of the seal?

How do you "pop" them out?

Thanks for any advise.

[billmayo]

I need some guidance to replace the seals in a greenie jigsaw I am cleaning and repairing.
I have identified the two seals and would like to replace them. What I am not sure how they can be replaced. I see a metal ring before the rubber part, is this also part of the seal?

How do you "pop" them out?

Thanks for any advise.

Yes, the metal ring is part of the seal. I have the seals available if you cannot find them. I had to remove all the internal jigsaw parts before being able to replace the shaft seal. I have some long slender punches that come from inside the housing to slowly tap out the shaft seal. I also have a seal removal slide hammer when I remember I have it. I find the vent hole behind the upper right cover screw get stopped up will cause the housing gasket and/or shaft seal to leak. Too much oil in the housing is bad too. The jig saw housing holds 3 oz. of non-detergent oil. I use air compressor oil for the jig saw. Please Email me off-line if any questions or parts needed.

[mbcabinetmaker]

Dave

Just strip it down and send it to Bill. The arm and table are easily removed. After that it will fit in a small box. UPS is your friend!:)

Mark

[eartigas]

Bill:

Thanks, as usual your answers come fast and are extremely helpful. I have completely dismantled the jigsaw and I am now cleaning the crud, old oil deposits and loose paint from the inside of the case. The bearings look OK (one is plastic) and I believe they can't be replaced.

I have one seal and I am expecting the other.

Let's see how I mange to remove and install them, but that is another story ; ))

Regards

[billmayo]

[quote="eartigas"]Bill:

Thanks, as usual your answers come fast and are extremely helpful. I have completely dismantled the jigsaw and I am now cleaning the crud, old oil deposits and loose paint from the inside of the case. The bearings look OK (one is plastic) and I believe they can't be replaced.

I have one seal and I am expecting the other.

Let's see how I mange to remove and install them, but that is another story ]

Yes, both the brass and plastic bushings can be removed and replaced. I brought a couple of jig saw housings where the housing part that holds the arm broke off so I stripped these housings for all their parts. I have several sets of seal driver kits when I remember to use them that works for removing and installing the jig saw bushings & seals. I have not found a good replacement for the dome plug on the bottom of the jig saw so I have been redoming the existing plug and using red LocTite when reseating it.

As a side note, I find that Shopsmith still stocks many of the jigsaw parts but you will need the latest Shopsmith made Jig Saw Manual for the part numbers. The Magna part numbers did not work for me.

[eartigas]

Bill:

Indeed I got the metal domes, the internal plastic "T" bushing and seals from Shopsmith. I do have all the new part numbers if you need them.

Regards

[JPG]

Bill:

Indeed I got the metal domes, the internal plastic "T" bushing and seals from Shopsmith. I do have all the new part numbers if you need them.

Regards

Put EM in a post to this thread!:) Help the next Guy who needs it and is reading this thread!