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Post subject: Milk in my crankcase.
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1982RD350LC  Regular Racer Joined: 31 May 2008 Total posts: 354 Location: Vancouver, Canada |
http://i8.photobucket.com/albums/a3/ron629/2008July21002.jpg
Anyhow, I know what it's from (rad fluid leaking in) but I'm not sure about the solution. When I replaced my right hand gasket and the one inside there that is for the impeller I was wondering if I should have added a skim of silicon to them . . . . what do you guys do ?
ron
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Posted: Tue Jul 22, 2008 5:37 am
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IanG1 Joined: 03 Aug 2003 Total posts: 1281 |
Did you check the state of the impellar shaft and the replace the o ring on the top water pipe 
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Posted: Tue Jul 22, 2008 7:01 am
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| Rich |
| IanG1 wrote: |
| Did you check the state of the impellar shaft and the replace the o ring on the top water pipe |
And the water pump seal 
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Posted: Tue Jul 22, 2008 7:27 am
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| IanG1 Joined: 03 Aug 2003 Total posts: 1281 |
| Rich wrote: |
| IanG1 wrote: |
| Did you check the state of the impellar shaft and the replace the o ring on the top water pipe |
And the water pump seal |
He says he replaced that in his original post Rich
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Posted: Tue Jul 22, 2008 7:39 am
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| p51bombay Joined: 23 Jan 2004 Total posts: 9910 |
Only three ways it can get in, water pipe which has an O-ring inside, impeller seal and the water pump cover. As mentioned if the shaft has a groove worn in it then it can fail again.
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Posted: Tue Jul 22, 2008 12:34 pm
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1982RD350LCRegular Racer Joined: 31 May 2008 Total posts: 354 Location: Vancouver, Canada |
Thanks guys for the replies, there were no previous leaks untill I had taken the right hand cover off to replace the clutch basket so I'm going after that rubber ring that is in question.
ron
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Posted: Tue Jul 22, 2008 2:48 pm
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powervalve 350 Throttle Demon Joined: 04 Aug 2003 Total posts: 3136 Location: Hull UK |
Was it full fat, semi skimmed or skimmed milk???
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Posted: Tue Jul 22, 2008 2:54 pm
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cooler Suburban Commuter Joined: 17 Apr 2007 Total posts: 58 Location: leeds |
 I was a milkman aswell
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Posted: Tue Jul 22, 2008 4:58 pm
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| NUTTYNICK |
| p51bombay wrote: |
| Only three ways it can get in, water pipe which has an O-ring inside.. |
I can't see how an O-Ring failure here can leak coolant into the crankcases. A leak would be obvious as coolant would leak onto the cases and then the floor through the centre drain hole, and the case gasket surrounds this area as well 
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Posted: Tue Jul 22, 2008 6:02 pm
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| p51bombay Joined: 23 Jan 2004 Total posts: 9910 |
| NUTTYNICK wrote: |
| p51bombay wrote: |
| Only three ways it can get in, water pipe which has an O-ring inside.. |
I can't see how an O-Ring failure here can leak coolant into the crankcases. A leak would be obvious as coolant would leak onto the cases and then the floor through the centre drain hole, and the case gasket surrounds this area as well |
Are you talking about a Valvie thermo ring? I mean the small pipe that passes coolant from through the case from the water pump to head.
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Posted: Wed Jul 23, 2008 12:29 am
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gary-rd-robbo![[RD/RZ Blood Donor]](../img/pipsvip.jpg "RD/RZ Blood Donor")
RD/RZ Blood Donor One-handed Stoppie! Joined: 07 Oct 2007 Total posts: 2331 |
the ring goes on a small alloy tube that passes into the r/h cover and it under the r/h carb and goes to the waterpump area of the sidecasing.
something else to check...you did fit the seal for the impeller the correct way and the wording"waterside" on the impeller side then a new bearing.
impellers do get groove cut in and i tend to replace new with the seal.
water will not find its way in from the water pump cover plate gasket..it will just leak on the floor and wet the oil pump.
my bet is the o ring or seal is wwr.
gaz
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Posted: Wed Jul 23, 2008 5:06 am
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1982RD350LCRegular Racer Joined: 31 May 2008 Total posts: 354 Location: Vancouver, Canada |
Hmmmm now you got me thinking . . . . . It must be the impeller seals. I'll know in a few days of riding though cause I've allready tossed it together and been out for a test run and the oil looks clean so far but we'll see it a few more days.
ron
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Posted: Wed Jul 23, 2008 5:50 am
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