| Author | Message | ||
     Turboglh |
Picked up a motor from a 96 S1. Bike was already long dead, so it's we're going to try and use it for something nice. Heads were off , but the lower end supposedly had been gone though to some degree, so I wanted to make sure everything was in order. Pulled the cam cover to see if there was an updated oil pump gear to go with the new 07' oil pump and found this.    Appears that the snap ring for the pinon bearing is gone/missing. The wear seems to have been caused by the gear on the pump itself, perhaps why it was replaced. Anyone want to throw in on the cause/solution to this wear is (if any)? | ||
| Reepicheep |
Maybe I am looking at the wrong place, but the wear doesn't seem that bad. I don't know what the rust is though... Maybe the pump siezed, ripped apart the key in the pinion gear, and shredded the retaining clip. (Is there even a clip? I forget.... See my profile picture (click on my name to the left) to see what a worn gear looks like... | ||
| Turboglh |
Not the the gear, the bearing itself in the case. Look at the writing on the bearing in the first pic. The groves outside of it are wear on the bearing face. | ||
| Azrael_cervale |
It looks to nice to me. I'd double check the book to see if there is supposed to be a retaining clip. The grooves miss the etching just perfectly and makes me wonder if it was designed that way. If it is bad though I think you'll have to split the case to pull it off the crank and replace it. | ||
| Turboglh |
Book says there is supposed to be a clip there. First time in the cam cover, so I was looking for a bit of feedback to see if that wear is abnormal before splitting the cases. | ||
| Azrael_cervale |
Can you push the bearing back in? I'll take a look at mine tomorrow its all apart anyway. At the very least you'll have to remove the came cover and gears to get a new clip in so you may want to disassemble it and see if you can move the bearing in and go from there. | ||
| Azrael_cervale |
Sorry my 99 looks very different from what you have. | ||
| Azrael_cervale |
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| Dannybuell |
Turboglh ~ I bought a new glh turbo in 1985 and drove it for 10 years. I miss that car... | ||
| Turboglh |
Azrael, Thanks. The pretty much confirms what I thought. Looks like the clip is missing and the bearing roller is sliding outward. I could probably push it back in and put a clip in, but where did the old clip go? Dannybuell, I've had a couple over the years, still my favorite fun car to drive. Also one of the best sleepers for years. People are a bit more savvy now, but still a blast. | ||
| Blks1l |
I wonder if someone had been in there in the past, and removed it and didn't reinstall it? | ||
| Azrael_cervale |
The odd thing to me is it seems your S1 uses a completely different style bearing than mine (99 S3). Mine is a needle bearing and you can see a gap between the shaft and the bearing cage in the second pic behind the clip. Instead of pushing it I'd see if you can slide it out, if so you could possible slide in a new one. Its a tight tolerance but not a Press fit by any means. | ||
| Akbuell |
Since you don't have the oil filter to pull apart and inspect .... My Strictly Wild Guess is that the clip was left out, for whatever reason. I would pull the oil pump apart and look for debris and/or scoring. No debris or scoring, no problem; the clip was most likely left out. Won't help with removing and replacing the bearing, though. Still will involve splitting the cases, most likely. | ||
| Turboglh |
Filter is still attached, story I got when I called the seller (motor was listed as having a rebuilt power end) is that they rebuilt it and ran it on the bench before pulling heads to repair broken mount studs. Seems the most likely answer is like akbuell said, the clip was most likely left out and the wear is from the test run. I'm talking with him now to try and rectify the whole situation. But one way or another the cases are getting split and a new bearing is going in. I can only hope that there's no damage to the pump, and that any material from the bearing got trapped in the filter. |
