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Post by rcq92130 on May 25, 2015 19:25:47 GMT -5
After only a few thousand miles the paper gasket between the 60MM BBK jug & the crank has started leaking. It's just enough to be irritating each time I walk up to the scoot and see a little wet oil spot on the ground. It's leaking on the bottom/right - where the oil return is (not pressurized), so at first I tried cleaning the area and smearing Lexan to see if it would stop the leak. No dice.
So now probably I'm going to have to tear this thing apart again just to put a new gasket in.
That means deglazing the jug (no problem) but also new rings. And i can't find any 60mm piston rings sets (including from the guy in Puerto Rico who sells the BBK kits. Only a complete new piston (w/rings & wrist pin).
I DO see 61mm ring sets.
Anyone know how much work it would be - and how practical - to file these down enough to use?
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Post by geh3333 on May 25, 2015 19:30:34 GMT -5
After only a few thousand miles the paper gasket between the 60MM BBK jug & the crank has started leaking. It's just enough to be irritating each time I walk up to the scoot and see a little wet oil spot on the ground. It's leaking on the bottom/right - where the oil return is (not pressurized), so at first I tried cleaning the area and smearing Lexan to see if it would stop the leak. No dice. So now probably I'm going to have to tear this thing apart again just to put a new gasket in. That means deglazing the jug (no problem) but also new rings. And i can't find any 60mm piston rings sets (including from the guy in Puerto Rico who sells the BBK kits. Only a complete new piston (w/rings & wrist pin). I DO see 61mm ring sets. Anyone know how much work it would be - and how practical - to file these down enough to use? Soory to hear about the problem. Did you torque everything down correctly ? Next time I'd retorque the head nuts after breaking . |
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Post by rcq92130 on May 25, 2015 19:59:43 GMT -5
Yeah, of course. Went back after 500 miles and re-torqued it all.
The paper gasket, I think, just got pushed to the side when it was originally installed, and eventually started to seep. Bummer, because just sealing the thing up again is kind of a major effort because the jug has to come off.
And there do not seem to be rings available
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Post by geh3333 on May 25, 2015 20:05:37 GMT -5
Yeah , looks as if you will have to buy a new piston . hey rcq , while your here, can you do a temp test one day , after the fix of course .
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Post by rcq92130 on May 31, 2015 19:25:35 GMT -5
Our friend in Puerto Rico made available a 60mm set of piston rings, so that & a gasket set are on the way.
Hoping they will not be needed. After scratching around and cleaning the joint between the jug & the crankcase last week, and smearing Lexan on it as best I could, it was leaking 1,000 times worse. So the moral is I have identified the problem!
Just cleaned it again, took off the exhaust for better access, and smeared a wad of JB Weld all along the seam. Don't know if there is too much movement between the jug & case - if so JB Weld will crack and leak. But maybe God is smiling down on me .....
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Post by pistonguy on May 31, 2015 19:58:19 GMT -5
Can you or anyone give me the Ring Thickness?
I have a source.
Please don't file down a set of 61mm, Thats 1 whole mm or .039
The ring tension would be off the charts. No Bueno!!
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Post by rcq92130 on May 31, 2015 20:32:48 GMT -5
Can you or anyone give me the Ring Thickness? I have a source. Please don't file down a set of 61mm, Thats 1 whole mm or .039 The ring tension would be off the charts. No Bueno!! Thank you SO MUCH! The guy in PR who supplied the BBK (good guy) made available a 60mm set, which are on the way. |
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Post by pistonguy on May 31, 2015 21:29:10 GMT -5
No problem.
For future reference still measure the thickness for me.
I may even have a set in my possession I'd just throw in a envelope for ya.
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Post by geh3333 on May 31, 2015 21:57:31 GMT -5
Can you or anyone give me the Ring Thickness? I have a source. Please don't file down a set of 61mm, Thats 1 whole mm or .039 The ring tension would be off the charts. No Bueno!! Thank you SO MUCH! The guy in PR who supplied the BBK (good guy) made available a 60mm set, which are on the way. They seem pretty willing to help . they sent me a set of v-slides because the k&s variator was missing them . they prob fell out of the package. |
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Post by rcq92130 on Jun 1, 2015 7:54:56 GMT -5
No problem - will measure when they arrive.
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Post by rcq92130 on Jun 1, 2015 21:48:25 GMT -5
No problem. For future reference still measure the thickness for me. I may even have a set in my possession I'd just throw in a envelope for ya. Hey P-Guy Package arrived from Puerto Rico (as always, in record time - much faster than domestic), so I have those measurements compression ring 1: height - 0.74mm, depth 2.66mm compression ring 2: height 1.05mm, depth 2.70mm oil ring sandwich (all 3 together): height: 2.27mm |
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Post by geh3333 on Jun 1, 2015 22:37:45 GMT -5
No problem. For future reference still measure the thickness for me. I may even have a set in my possession I'd just throw in a envelope for ya. Hey P-Guy Package arrived from Puerto Rico (as always, in record time - much faster than domestic), so I have those measurements compression ring 1: height - 0.74mm, depth 2.66mm compression ring 2: height 1.05mm, depth 2.70mm oil ring sandwich (all 3 together): height: 2.27mm How long exactly does it usually take for parts to get to you from PR ? If I order on a Monday morning , many times I'll receive the parts on Thursday. Sometimes Friday. |
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Post by rcq92130 on Jun 1, 2015 22:45:20 GMT -5
Hey P-Guy Package arrived from Puerto Rico (as always, in record time - much faster than domestic), so I have those measurements compression ring 1: height - 0.74mm, depth 2.66mm compression ring 2: height 1.05mm, depth 2.70mm oil ring sandwich (all 3 together): height: 2.27mm How long exactly does it usually take for parts to get to you from PR ? If I order on a Monday morning , many times I'll receive the parts on Thursday. Sometimes Friday. Wow. MUCH faster to here in san diego. These were ordered Thursday afternoon (west coast time) and sent out on Friday first class mail (not priority). Arrived by noon Monday Larger packages are sent priority. If ordered Monday they arrive by wednesday. Maybe everything to here gets delivered by plane direct from san juan. |
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Post by geh3333 on Jun 1, 2015 23:38:32 GMT -5
Yeah, after San Juan , it takes about 24hrs to get to warrendale , about 2 hours north of me . if it departs warrendale by 3 - 4 am it will be hear that day , if not it will take another day. Usually 3 days but sometimes 4. its still faster then most in the US.
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Post by rcq92130 on Jun 1, 2015 23:50:45 GMT -5
Yeah, after San Juan , it takes about 24hrs to get to warrendale , about 2 hours north of me . if it departs warrendale by 3 - 4 am it will be hear that day , if not it will take another day. Usually 3 days but sometimes 4. its still faster then most in the US. WAIT A MINUTE !!!!!!!!!!! So Warrendale, population 375, is the nearest large city ... and it's 2 hours away??? How far do you need to drive to get your Royal Purple??? Wisconsin?    |
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