However, this week I was headed down the road and when I went over a bump an intense grinding noise started coming from the motor area and the vehicle no longer would move under power. Even with the power off there was a pretty intense grinding noise just trying to free roll back and forth.
I was able to get to a safe spot pretty quick and tonight was able to pull the motor. I can’t remember if these two blobs of blue things are supposed to be there and it looks like the teeth on both sides are pretty worn. I am guessing this is/was my issue, And going over the bump finally sent it over the edge.
I’m not sure if this is something that’s easily replaceable or if there’s something obvious that it looks like I’m missing. The NEV does free roll without any noises. I also forgot how heavy this AC motor was .
Any ideas on if this is something that can be repaired? Or do I need to get a motor shop involved?
Wow! This has been eating itself for quite a while. That spline is sooo dry. Has this been making any unusual noise or vibration? How long has this setup been running? Was the motor not installed straight or perhaps coming loose?
That motor is going to need a new coupler(not an easy thing to do). Special tools are going to be needed. Yes, that means a special motor shop.
Your gearbox is also going to need a new input shaft and a new seal.
Those wads of epoxy are there to balance the rotating assembly. Leave them alone.
Thanks @AssyRequired for the super fast response. I too was surprised at how dry it was. I had installed this setup back in 2021 and used I believe Honda type grease on it when put together. Clearly it was toast.
I had noticed some noise when letting off the accelerator before regen would kick in, but it didn’t seem too loud or out of place. Apparently I was wrong. When j removed it tonight, nothing seemed loose and all the bolts seemed quite snug that were holding the two together.
I reached out to @Old_Houseboater to see if this is something he could help with. I am based in Kissimmee, FL.
Now to read how to take the gearbox off. If I can transport just the motor and the gearbox, or ship them, it’s doable rather than me having to figure out how to tow the NEV somewhere.
Strange, I can’t find notes about this AC install. It looks like you got a hold of one of the 8kw kits (from included pics).
FYI- I think it would be a good idea to try and save this motor. You may not be able to find another in it’s size range.
Hopefully, you can get it to somebody that knows what they are doing.
I’m guessing your gearbox input shaft may have been worn out from the previous motor and years of use. The worn out input shaft ate up the coupler on the new motor. Strange how it does not look like there is anything left of the Honda 77 paste/lube.
The condition you describe, the “growling” which occurs when the throttle lifts (lets off near completely) at speed is a classic indicator of a worn input shaft on the gearbox.
No need to pull the gearbox to change the input shaft. Clean off the area around the base of the input shaft and you’ll find a big c-clip around the outer edge of the recessed area. Remove that clip and grab the input shaft with a big pair of vice grips and yank hard. The shaft and the bearing will come out together (they are supposed to). If you can’t get it to break free, a vice-grips slide hammer may do it and/or you can try penetrating oil or carefully heating the bearing on the outer race edge (where the c-clip was) with a torch and once it’s warmed up, yank hard.
You will need to know your gear ratio when you order the replacement input shaft as the number of teeth & angles on the pinion gear at the end will differ depending on what the final ratio is. IIRC, 10.35 & 14.75 use the same pinion, the 8.9 and the 17.something are both different.
Not a big deal send me picture of coupling on end of motor. in some cases you can get a few years by just replacing input shaft. please send make and model of motor. and model number of gearbox. You will have to send me motor to have coupling replaced. Motor service will be included TOUCHED BY RODNEY
I am so sorry for jumping in without any info. Im actually trying to start a new topic but I cant find the start a topic button, there “Ask an expert” ads all over my page. any advice?
On a pc desktop, install adblock plus or switch to thorium browser
On an android phone install chromite browser.
On a iphone, go piss on Steve Jobs grave. Because youre screwed
Hi, just curious if this coupling should be a regular maintenance item? I’ve never greased anything but the front end zerks. I also use silicon spray on all the bushings.
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