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Post by ramblinman on May 18, 2015 4:25:49 GMT -5
I'm just thinking it would take a decent size piece of that stuff to clog the passage or pump . I'm not sure if it would make it past the filter screen. Anyway , let me know how it goes. I'll do the same . I better get some sleep , lol. i been using it for over a year on this scoot and recently noticed small fragments in the oil passages on the head and cylinder. i tried getting it out with q-tips and wd40 but that stuff is invincible. i guess gasoline is it's kryptonite. |
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Post by ramblinman on May 18, 2015 4:37:30 GMT -5
I'm just thinking it would take a decent size piece of that stuff to clog the passage or pump . I'm not sure if it would make it past the filter screen. Anyway , let me know how it goes. I'll do the same . I better get some sleep , lol. One last post , lol. Just take the valve cover off, hit the kill switch , and crank the engine . the oil will flow if the passage is not clogged . interesting idea. i'm definitely doing that, just don't forget to bolt the engine ground. you get a bone for that one. |
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Post by ramblinman on May 18, 2015 5:00:44 GMT -5
One last post , lol. Just take the valve cover off, hit the kill switch , and crank the engine . the oil will flow if the passage is not clogged . interesting idea. i'm definitely doing that, just don't forget to bolt the engine ground. you get a bone for that one. how does oil flow to the chain? does it come up the cylinder to the valves and then splash the chain?  |
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Post by keikara on May 18, 2015 10:57:08 GMT -5
I did the diesel engine flush on a junkyard 4 cylinder once, only I did with 100% diesel no oil, poured about a gallon into the motor, then would turn it over with the coil disconnected. Once oil came up to the head, drained the diesel filled with oil ran 100 miles changed oil, ran another 500 miles changed oil again and then just normal oil changes, had no problems for almost a year until I over revved and blew the timing chain apart. But as for on a scooter I would be worried the diesel would eat the paper gaskets and then cause oil leaks.
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Post by dmartin95 on May 18, 2015 11:01:11 GMT -5
I advise against putting diesel fuel in your scooter to flush it.
What I do advise is just to buy a new gasket set, new set of rings and rent a honing tool. You can get ALL of this for around $30~50.00 to the door. Take the engine apart, clean it real good and re-assemble....
It's kind of a lot of work, but you'll wind up with a like new motor and the satisfaction of knowing it's done right.
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Post by ramblinman on May 18, 2015 12:05:20 GMT -5
I advise against putting diesel fuel in your scooter to flush it. What I do advise is just to buy a new gasket set, new set of rings and rent a honing tool. You can get ALL of this for around $30~50.00 to the door. Take the engine apart, clean it real good and re-assemble.... It's kind of a lot of work, but you'll wind up with a like new motor and the satisfaction of knowing it's done right. i basically did all that last week and changed the cam because the bearings were bad. now i found out i'm not getting oil to the cam or very little. guess thats why my last cam self destructed. i been using an oil resistant gasket maker and had a bunch of fragments in the engine. never again. i took the cover off and oiled the chain, rockers and springs by hand. took gas can a mile down the road, on the way back it started to get real hot so i cut the engine and pushed it the last 1/5 mile. anyhow, the scoot is scrap metal if i can't clear the passages so i'm gonna do it anyway. i have the same concerns about fuel on gaskets but i see no other way to clean it out. |
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Post by phatboy on May 18, 2015 13:49:29 GMT -5
If you have silicone chunks in your engine, I doubt they are from the valve cover gasket, that is low pressure and as long as it was cured before you ran the motor it should stay in place. I would guess any chunks you see are from the oil pump gasket, or if there is another high pressure area. For this reason I never use silicone on high pressure oil gaskets anymore.
I once used silicone on an oil pump gasket and it seized 2 weeks later, I took it apart and I found silicone clogging up the oil jacket in the cam, just softening up the silicone is not going to get it out of there. If it's in the cam it's in the rod and main bearing too.
Gas and other chemicals just soften up the silicone, nothing I know of dissolves it except maybe acid. The only way you are getting it all out is to split your case and clean everything up. Personally I junked my motor and got a used one. There are enough cheap scoots out there with no title that I'm sure you can find something.
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Post by JerryScript on May 18, 2015 14:30:29 GMT -5
The issue is the oil pathway. It runs up the head bolts to the rocker arm assembly. If the gasket material spread over this pathway, that will stop the flow.
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Post by ramblinman on May 18, 2015 14:58:18 GMT -5
The issue is the oil pathway. It runs up the head bolts to the rocker arm assembly. If the gasket material spread over this pathway, that will stop the flow. what path does it take back to the crankcase? is their a drain behind the chain? so most likely spots that would get clogged are the cylinder/head passages? what about the pump? i'm guessing it could be clogged. is their any other part of the engine that could clog? i'm asking cause if i replace the oil pump and clean out the cylinder and head then would it be back up and running? i don't have the tools, time or patience to split the case. |
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Post by ramblinman on May 18, 2015 16:22:38 GMT -5
well, i did it. basically same as vid. i did 2 flushes slightly over filled 100% diesel for 2 minutes each flush. appears to have fixed it. after filling with oil i removed the cover and was going to do geh idea but my kill switch doesn't send power to starter. so i started it and couldn't shut it off fast enough. had 2 streams like venom shooting out of the cam. i do wish i would have started it with cover off before i did the flush so i could compare. oh well, i'm fairly certain it has plenty of oil pressure considering it hit my floor mat at idle. i'll update this thread when my crankcase gasket leaks.  |
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Post by geh3333 on May 18, 2015 17:12:47 GMT -5
well, i did it. basically same as vid. i did 2 flushes slightly over filled 100% diesel for 2 minutes each flush. appears to have fixed it. after filling with oil i removed the cover and was going to do geh idea but my kill switch doesn't send power to starter. so i started it and couldn't shut it off fast enough. had 2 streams like venom shooting out of the cam. i do wish i would have started it with cover off before i did the flush so i could compare. oh well, i'm fairly certain it has plenty of oil pressure considering it hit my floor mat at idle. i'll update this thread when my crankcase gasket leaks. I'm curious to hear how the engine temps are ! I used the red high temp kind . supposedly its not oil resistant . |
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Post by ramblinman on May 18, 2015 19:40:56 GMT -5
well, i did it. basically same as vid. i did 2 flushes slightly over filled 100% diesel for 2 minutes each flush. appears to have fixed it. after filling with oil i removed the cover and was going to do geh idea but my kill switch doesn't send power to starter. so i started it and couldn't shut it off fast enough. had 2 streams like venom shooting out of the cam. i do wish i would have started it with cover off before i did the flush so i could compare. oh well, i'm fairly certain it has plenty of oil pressure considering it hit my floor mat at idle. i'll update this thread when my crankcase gasket leaks. I'm curious to hear how the engine temps are ! I used the red high temp kind . supposedly its not oil resistant . i don't have a temp gauge but it is much cooler. just got back from a 10 mile trip, i don't have that faint rattle i mentioned the other day either. must have been the dry chain. i wonder how soon i should do an oil change. i know some diesel is still in there and even a little might eat away at a gasket. i picked up 2 cheap quarts. should i do it now or wait 50 miles? |
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Post by ramblinman on May 18, 2015 19:44:02 GMT -5
well, i did it. basically same as vid. i did 2 flushes slightly over filled 100% diesel for 2 minutes each flush. appears to have fixed it. after filling with oil i removed the cover and was going to do geh idea but my kill switch doesn't send power to starter. so i started it and couldn't shut it off fast enough. had 2 streams like venom shooting out of the cam. i do wish i would have started it with cover off before i did the flush so i could compare. oh well, i'm fairly certain it has plenty of oil pressure considering it hit my floor mat at idle. i'll update this thread when my crankcase gasket leaks. I'm curious to hear how the engine temps are ! I used the red high temp kind . supposedly its not oil resistant . imo i would not recommend it to anybody unless you're not getting oil to the cam. it will likely cause a leak at some point in the future. |
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Post by keikara on May 18, 2015 23:09:23 GMT -5
I personally would change the oil again now, you said did go for a 10 mile ride, and then I would change again after 50 ~ 100 miles.
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Post by ramblinman on May 19, 2015 9:34:30 GMT -5
I personally would change the oil again now, you said did go for a 10 mile ride, and then I would change again after 50 ~ 100 miles. wow, good thing i did the oil change now. i thought the 2 flushes would have got all or at least most of the debris. figured i was just doing it to get more diesel out of the engine so it's not in there eating away at my gaskets. must have been a teaspoon of permatex fragments and the oil was noticeably darker after only 10 miles. think i might do it again in another 10 miles. |
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