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13-05-17, 10:08 AM
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#1 |
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Junior Member
Join Date: May 2017
Posts: 12
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Oil leak!
I've a rather nasty oil leak coming from the bolts shown, firstly, what are these, and secondly should there be high pressure there?
 this one is an example on a fresh engine,  here we have mine. Now that bottom part of the casing does have a small cracked part, but the main leak starts from the upper bolt only under pressure (engine on.) Help! Sent from my iPhone using Tapatalk |
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13-05-17, 11:13 AM
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#2 |
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Member
Join Date: Oct 2014
Location: Kington Herefordshire
Posts: 916
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Re: Oil leak!
That looks a bit nasty, how did it come to be cracked? I wonder if it could be welded up and a new thread tapped in,
Sent from my SM-G903F using Tapatalk
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Black 2010 SV650S Fully faired White 2011 YZF R125 sold |
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13-05-17, 11:15 AM
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#3 | |
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Junior Member
Join Date: May 2017
Posts: 12
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Re: Oil leak!
Quote:
It was cracked when I bought it in October, but I didn't notice it then. It's had a small oil leak since, nothing that's worried me drastically, but after attempting to dig around to find the cause I've made it a fair bit worse. Sent from my iPhone using Tapatalk |
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13-05-17, 11:20 AM
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#4 |
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Member
Join Date: Oct 2014
Location: Kington Herefordshire
Posts: 916
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Re: Oil leak!
It's a shame you don't have the missing part, you might have been able to JB weld it back on
Sent from my SM-G903F using Tapatalk
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Black 2010 SV650S Fully faired White 2011 YZF R125 sold |
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13-05-17, 11:21 AM
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#5 |
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Junior Member
Join Date: May 2017
Posts: 12
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Re: Oil leak!
Just wondering if it's worth welding it up now to block it, how likely am I to need access?
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13-05-17, 11:26 AM
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#6 |
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Member
Join Date: Oct 2014
Location: Kington Herefordshire
Posts: 916
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Re: Oil leak!
I'm not even sure what it's there for, someone on here will tell you soon. Have you tried wrapping the bolt in ptfe help seal the thread but I'd be careful you don't fully strip the thread out of the casting
Sent from my SM-G903F using Tapatalk
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Black 2010 SV650S Fully faired White 2011 YZF R125 sold |
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13-05-17, 11:28 AM
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#7 |
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Junior Member
Join Date: May 2017
Posts: 12
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Re: Oil leak!
Last night I set the whole lot in prc, and when I checked it this morning it took seconds on idle to blow through and continue dripping. We wrapped the bolt and made a seal around the outside as well, seems nothing will stop it.
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13-05-17, 11:42 AM
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#8 |
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Junior Member
Join Date: May 2017
Posts: 12
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Re: Oil leak!
Update- the upper bolt shown is now confirmed sealed, the cracked section is where the leak is coming from. Have tried heating and moving the lower bolt to no avail.
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13-05-17, 11:43 AM
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#9 |
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Member
Join Date: Oct 2014
Location: Kington Herefordshire
Posts: 916
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Re: Oil leak!
The lower one won't even come out?
Sent from my SM-G903F using Tapatalk
__________________
Black 2010 SV650S Fully faired White 2011 YZF R125 sold |
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13-05-17, 11:43 AM
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#10 |
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Junior Member
Join Date: May 2017
Posts: 12
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Re: Oil leak!
No, appears to have sheared.
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