Aussie Brian wrote:
Did your engine have an oil cooler that wasn't drained maybe?
Might as well throw in an oil filter if you are thinking that way...sounds remote though
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| Black oil after rebuild https://www.ausmini.com/forums/viewtopic.php?f=2&t=90930 |
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| Author: | MUNKEY [ Sun Nov 01, 2015 9:10 am ] |
| Post subject: | Black oil after rebuild |
Hi, I just picked up my moke this weekend after the engine was pulled down and rebuilt. It has done about 2hrs running and hasn't left my street. The oil is black as black can get, Shouldn't it be clean as a whistle? . |
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| Author: | aaron [ Sun Nov 01, 2015 9:57 am ] |
| Post subject: | Re: Black oil after rebuild |
What was rebuilt? the short motor or long motor or the entire unit? If the entire unit was rebuilt(inc gearbox) I would say yes, you have issues. If you just had one part of it done, IE the short motor then you will find the bit you haven;t done should have been done as well. |
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| Author: | MUNKEY [ Sun Nov 01, 2015 10:58 am ] |
| Post subject: | Re: Black oil after rebuild |
They done the lot.. It runs really well. Ill change it this arvo. 20w 50? |
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| Author: | simon k [ Sun Nov 01, 2015 1:24 pm ] |
| Post subject: | Re: Black oil after rebuild |
2 hours running and hasn't left your street is a bad thing.... the engine can't have been put under any load so the rings and bores will be glazing blowby putting soot in the oil |
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| Author: | drmini in aust [ Sun Nov 01, 2015 1:40 pm ] |
| Post subject: | Re: Black oil after rebuild |
If they put LMM molygrease or similar on the cam & lifters (like I do) to bed them in, that will send it black. I can't think of any other reason. |
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| Author: | MUNKEY [ Sun Nov 01, 2015 3:26 pm ] |
| Post subject: | Re: Black oil after rebuild |
Ive driven it about 10klm, my drive way is 300m up hill and just up the street a couple of times and on my property. I'll give them a ring in the morning and see what they say and post the reply. |
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| Author: | Aussie Brian [ Sun Nov 01, 2015 7:53 pm ] |
| Post subject: | Re: Black oil after rebuild |
Did your engine have an oil cooler that wasn't drained maybe? |
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| Author: | 9YaTaH [ Sun Nov 01, 2015 7:56 pm ] |
| Post subject: | Re: Black oil after rebuild |
Aussie Brian wrote: Did your engine have an oil cooler that wasn't drained maybe? Might as well throw in an oil filter if you are thinking that way...sounds remote though
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| Author: | MUNKEY [ Sun Nov 01, 2015 8:11 pm ] |
| Post subject: | Re: Black oil after rebuild |
I dont think it has an oil cooler.. (The moke has been in my wifes family a very long time and was going to waste so i took it upon my self to get an engine for it and fix it up). I serviced my falcon turbo a couple of weeks ago and its still looks gold and that car has a hell of a life.   
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| Author: | slacko [ Sun Nov 01, 2015 8:51 pm ] |
| Post subject: | Re: Black oil after rebuild |
that oil is pooh trud |
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| Author: | CPOCSM [ Sun Nov 01, 2015 11:50 pm ] |
| Post subject: | Re: Black oil after rebuild |
Give it a good flush with some cheap 20W50 and change the filter. This will eliminate the contaminants but if it goes black again, I would be going back to the builder and asking what's the go. Avoid just running it in the driveway as mentioned before you aren't loading up the ring lands so possibly you have already glazed the bores so a renowned and new rings might be in order. Hooroo |
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| Author: | MUNKEY [ Mon Nov 02, 2015 7:54 am ] |
| Post subject: | Re: Black oil after rebuild |
Another mate said its likely the stuff they use when building the engine that makes it go black plus maybe a bit of old oil in the gallery. When i mentioned running in the driveway, Im on a rural property and its 600m down the drive way and back on a hill not just sitting in the one spot running and ive gone up and down the road a few times which is a few klms of small hills. It drives real smooth and runs sweet. |
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| Author: | drmini in aust [ Mon Nov 02, 2015 8:16 am ] |
| Post subject: | Re: Black oil after rebuild |
If they rebuilt it properly, they would have removed the gallery plugs and cleaned the oilways out. |
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| Author: | 9YaTaH [ Mon Nov 02, 2015 9:15 am ] |
| Post subject: | Re: Black oil after rebuild |
CPOCSM wrote: Give it a good flush with some cheap 20W50 and change the filter. This will eliminate the contaminants but if it goes black again, I would be going back to the builder and asking what's the go. Avoid just running it in the driveway as mentioned before you aren't loading up the ring lands so possibly you have already glazed the bores so a renowned and new rings might be in order. Hooroo Rob nailed it...cept for the renowned (hone? ream?)...good advice 
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