Simon5030
Well-Known Member
- Joined
- Jul 15, 2014
- Messages
- 273
- Country Flag
So i have just replaced a bearing NSF and made the childish mistake of forgetting to put the seal on the back before pushing the bearing back on the shaft!!! yes i did kick myself!
So i kindly sent my friend off to Milner to get me another bearing while i cried quietly destroying the bearing taking it back off. After checking the bearing was the correct part number i fitted the new Toyo bearing with the seal this time, also replacing the seals in the back of the housing that let the water in to start with!
Great care was taken around the ABS sensor to make sure it was not knocked or damaged and free from all debris!
Job went well, or so i thought, turned the engine on and my ABS and associated lights came on and stayed on!
So on to diagnostics, i have one of those cheapo ELM327 devices that returned no codes (you get what you pay for!) so i then resorted to the manual diagnostics by shoting out 2 pins on the comms port and it returned 32 on the flashes sequence, quick lookup and this points to ABS, it suggests that the sensor may have sustained damage or may have debris stuck to it impeeding the signal?
So as i am sure you are all aware that ABS sensors do not like being removed, soaked in WD then tried ever so carefully to ease it out but alas only half came out! this led onto the hub being stripped again to knock out the remaining sensor bit, removed the balance that was very stubborn, cleaned all the hole out and then inserted a replacement. While the bearing was out i did check to see if it had a 'Reluctor' ring (new word for me!) or ABS magnetic ring and it seemed ok, i also checked with Milner to see if there was any chance of a mix up but they tell me all their bearings of that type are all the same with ABS, i could feel the magnets by using a needle across the ring.
All back together and guess what, still the same problem!
Took it down to my brothers garage and connected it up to his ££££ tester and it came back with the same fault, i had tried the manual reset (as per manual with 8 pumps of the pedal) but this had not worked, tried resetting on his software and the lights went out! Happy days!!!
On the way home the lights came back on about 1 minute into my journey~!!
So i am happy the bearing is ABS, i am happy the bearing position relative to the sensor is good, i have checked the wiring for damage and resistance and all seems ok, the only thing i have not done is attach a scope to look at the signal from the sensor to see if i am getting anything out at all?
Has anyone done this?
I have a traditional scope but thinking about it i need to have the wheels rolling round and thats not so easy kerbside with your scope plugged into the mains!
If i can find the fault i can fix it!
Any suggestions from anyone?
Thanks
Simon
So i kindly sent my friend off to Milner to get me another bearing while i cried quietly destroying the bearing taking it back off. After checking the bearing was the correct part number i fitted the new Toyo bearing with the seal this time, also replacing the seals in the back of the housing that let the water in to start with!
Great care was taken around the ABS sensor to make sure it was not knocked or damaged and free from all debris!
Job went well, or so i thought, turned the engine on and my ABS and associated lights came on and stayed on!
So on to diagnostics, i have one of those cheapo ELM327 devices that returned no codes (you get what you pay for!) so i then resorted to the manual diagnostics by shoting out 2 pins on the comms port and it returned 32 on the flashes sequence, quick lookup and this points to ABS, it suggests that the sensor may have sustained damage or may have debris stuck to it impeeding the signal?
So as i am sure you are all aware that ABS sensors do not like being removed, soaked in WD then tried ever so carefully to ease it out but alas only half came out! this led onto the hub being stripped again to knock out the remaining sensor bit, removed the balance that was very stubborn, cleaned all the hole out and then inserted a replacement. While the bearing was out i did check to see if it had a 'Reluctor' ring (new word for me!) or ABS magnetic ring and it seemed ok, i also checked with Milner to see if there was any chance of a mix up but they tell me all their bearings of that type are all the same with ABS, i could feel the magnets by using a needle across the ring.
All back together and guess what, still the same problem!
Took it down to my brothers garage and connected it up to his ££££ tester and it came back with the same fault, i had tried the manual reset (as per manual with 8 pumps of the pedal) but this had not worked, tried resetting on his software and the lights went out! Happy days!!!
On the way home the lights came back on about 1 minute into my journey~!!
So i am happy the bearing is ABS, i am happy the bearing position relative to the sensor is good, i have checked the wiring for damage and resistance and all seems ok, the only thing i have not done is attach a scope to look at the signal from the sensor to see if i am getting anything out at all?
Has anyone done this?
I have a traditional scope but thinking about it i need to have the wheels rolling round and thats not so easy kerbside with your scope plugged into the mains!
If i can find the fault i can fix it!
Any suggestions from anyone?
Thanks
Simon