Bosch Gen4 Seal Service & Grease up

Lithovatis

New Member
Sep 23, 2024
6
2
Kefalonia Island GR
If you can’t get specific pliers then a modified Cir-clip plier(s) will work. That’s what I did. There’s a number of pictures posted here (I have posted also) that could help.

I ground off the small pins and thinned out the tip slightly. You may need to sacrifice a tool, or part of a tool, but it works fine for removing that C-Clip.

Thnx for the reply Stihldog!!!
Will get a circlip plier to the sacrificial grinder and try to workout the tip to maybe get it flat???
 

Bearing Man

Ebike Motor Centre
Patreon
Sep 29, 2018
975
2,331
UK
What don't you like about aluminum based greases?
Unfortunately, there is conflicting information for this out there, some manufacturers say it can and some say it can't. I have seen boat trailers where marine grease has been pumped into the hub bearings and the original lithium grease has run out as oil, causing bearing failure in 3 or 4 months. Therefore, I tend to err on the side of caution.
I don't profess to be an expert on greases, but I do know that mixing them, or using the wrong type of grease for the wrong application, can be devastating.
Anyone just grabbing what they have on the shelf is a big no, no. The most common thing we see is high pressure grease or fancy ceramic or Teflon based greases used in clutch bearings! They obviously slip, but they slip under such extreme pressure that it damages the bearing races by polishing them! Some greases make the bearing slip and grip, which shatters the bearing...
You can see where I am going with this, but what I am really saying is that if you want to use a different grease, do your research to ensure it's compatible with the part you want to grease and the other greases around it.
 

Hattori-Hanzo

Well-known member
Apr 10, 2023
425
564
UK
I picked up some Motorex 2000 grease just to see what it's like.

Damn, this stuff is sticky! I've not used a grease like it, it has an almost silicone feel to it and is hard to wash off.

Anyone using it on these seals? I feel like it would do a good job :unsure:
 

Lithovatis

New Member
Sep 23, 2024
6
2
Kefalonia Island GR
I picked up some Motorex 2000 grease just to see what it's like.

Damn, this stuff is sticky! I've not used a grease like it, it has an almost silicone feel to it and is hard to wash off.

Anyone using it on these seals? I feel like it would do a good job :unsure:
Bearing man said is ideal!!!
To bad the store here in Greece sent me the wrong one yesterday 🤬🤬🤬.
 

Hattori-Hanzo

Well-known member
Apr 10, 2023
425
564
UK
Bearing man said is ideal!!!
To bad the store here in Greece sent me the wrong one yesterday 🤬🤬🤬.

What did they send you? I noticed there is a bike specific one but the only difference I could see is it comes in a smaller pot, has a brush and costs more🤷‍♂️

I got it in a cartridge, I assume it's the same stuff unless anyone know different?
 

Bearing Man

Ebike Motor Centre
Patreon
Sep 29, 2018
975
2,331
UK
What did they send you? I noticed there is a bike specific one but the only difference I could see is it comes in a smaller pot, has a brush and costs more🤷‍♂️

I got it in a cartridge, I assume it's the same stuff unless anyone know different?
Exactly the same stuff (y)
 

RustyMTB

E*POWAH Elite World Champion
Jul 22, 2020
2,851
6,892
UK
Off topic but have you got your hot little hands on a Gen 5 yet, BM? & if so whaddya think?
 

Lithovatis

New Member
Sep 23, 2024
6
2
Kefalonia Island GR
Bearing man said is ideal!!!
To bad the store here in Greece sent me the wrong one yesterday 🤬🤬🤬.

They ship the FETT 176 all purpose grease.....

"We are sorry for the inconvenience but we have only the small container with the brush at the moment.... "

No thanx. They took it b....

Maybe the waterproof Belray I have is good for the seals but won't risk it.
Bearing Man said 2000 is good so I go for it.

I have 7 motors to look after and another 3 in 20 days........

Can't play with chances.
One motor is already to the service because of error

Error to DriveUnit Voltage transformer....
 

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