eTorque Bearing Replacement, Fixed Grinding Noise

[Farachie]

The rotational speed of the 5.7L HEMI eTorque motor-generator at an engine speed of 5,000 RPM is 13,900 RPM. This is calculated based on the pulley ratio that connects the engine's crankshaft to the motor-generator.

My math came out a little different. The crank pulley is 7.24 inches in diameter and the MGU pulley is 2.3 inches in diameter. That would be closer to 15,700 RPM on the MGU when the engine is at 5000 RPM. I could be missing something. I hope your math is better than mine because the fastest rated front bearing, deep grove roller bearing, that I could find is limited to 13,000 RPM max.

 

[Farachie]

I just took mine apart and have both front and rear bearings, I don’t think it’ll be doable to take that pulley off without damaging something. You don’t even have enough room to grab the pulley on the backside of it

I got mine off. It isn't impossible but it is difficult. I used a beefy puller with a cross supporting/clamping bolt. I'll put a picture below. Got it as tight as I possibly could on the front lip and sent it home with an impact after heating the pulley with a torch. When the puller arms were about to slip off, I stopped tightening the jacking bolt and then hit the jacking bolt with a hammer. It popped off. There was a little bit of damage to the pulley, but very minimal and I cleaned that up with a jewelers file.

 

[Slinder91]

I got mine off. It isn't impossible but it is difficult. I used a beefy puller with a cross supporting/clamping bolt. I'll put a picture below. Got it as tight as I possibly could on the front lip and sent it home with an impact after heating the pulley with a torch. When the puller arms were about to slip off, I stopped tightening the jacking bolt and then hit the jacking bolt with a hammer. It popped off. There was a little bit of damage to the pulley, but very minimal and I cleaned that up with a jewelers file.

nice job, I’ve been eyeballing that master set from ICON too lol, but without 100% confirmation that the front bearing I have would work, couldn’t see a point in potentially ruining it. I’m honestly suprised Ram doesn’t provide rebuild kits or bearings that you could order directly from them to repair these, I’m just another one on the waiting list with no ETA

 

[Trooper4]

Did a search for 5192368AH and several popped up, but when inquiring, there might be a supply problem. Did see a fet that said in stock.

Ram 1500 Belt driven. Generator. Starter. 5.7 liter - 5192368AH | Mopar Parts Webstores,

Belt driven. Generator. Starter. 5.7 liter, w/etorque. Ram 1500. Genuine Ram Part - 5192368AH (5192368AC, 5192368AD, 5192368AE, 5192368AF, 5192368AG). Ships from Mopar Parts Webstores,

www.moparpartswebstores.com

 

[Trooper4]

My math came out a little different. The crank pulley is 7.24 inches in diameter and the MGU pulley is 2.3 inches in diameter. That would be closer to 15,700 RPM on the MGU when the engine is at 5000 RPM. I could be missing something. I hope your math is better than mine because the fastest rated front bearing, deep grove roller bearing, that I could find is limited to 13,000 RPM max.

Got the numbers from google search AI, but what the hE!! does AI know?

 

[Farachie]

Got the numbers from google search AI, but what the hE!! does AI know?

That's understandable. I also used AI and it said the MGU pulley was 4 inches in diameter. I then measured it myself because that didn't seem correct. It is not 4 inches. it is 2.3.