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HELP!!!
May 28, 2008 7:40:46 GMT -5
Post by malakiblunt on May 28, 2008 7:40:46 GMT -5
i just fired up the bike after reaplaceing the oil stem seals, and it started frist kick , but the engine is raceing on a closed throttle (it was doing that befor the rebuild) and it started blowing oil out past the gear box sprocket and its leaking oil from around the exahust /head gasket not sure exactly were.
clearly i havent fixed the preoblem??
Oh worked out what happend with the gear box , i didnt have a nut on the sprocket, so it just blew the inner part of the seal out takeing the sprocket with it. Is that whats suppoesd to hold it in?
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HELP!!!
May 28, 2008 8:25:38 GMT -5
Post by stevec5000 on May 28, 2008 8:25:38 GMT -5
Your crankcase vent must be plugged up.
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lurch
Full Member
Posts: 217
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HELP!!!
May 28, 2008 8:58:53 GMT -5
Post by lurch on May 28, 2008 8:58:53 GMT -5
Your crankcase vent must be plugged up. There's also a vent on top of rocker box that returns via a rubber pipe back to the oil tank . also could the return oil pipe be kinked or blocked ? Just a thought LURCH |
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HELP!!!
May 28, 2008 9:21:09 GMT -5
Post by malakiblunt on May 28, 2008 9:21:09 GMT -5
well ive discoverd that one of the socket head scres on the head wasnt done up because screws 8 and 9 are different lengths! even though ther doing the same job , and i had them round the wrong way so the exhaust side one wasnt clamping  ill cheak all the vents , i just put a new breather on the crank case (gear box) and the little head breather tube feeds back into the frame next to the oil return pipe, it was all pluged in. |
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HELP!!!
May 28, 2008 11:57:32 GMT -5
Post by stevec5000 on May 28, 2008 11:57:32 GMT -5
The new breather might be clogged up. Try it without that and make sure you can blow air through it easily before putting it back on.
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HELP!!!
May 28, 2008 12:04:25 GMT -5
Post by malakiblunt on May 28, 2008 12:04:25 GMT -5
yeah just done that and re touqued the head, and tha sprocket nut back on, but now the blighter wont start!  |
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HELP!!!
May 28, 2008 12:26:03 GMT -5
Post by malakiblunt on May 28, 2008 12:26:03 GMT -5
Well i just got it started again, and it fired up was idleing beautifully for about 2 minutes then the revs picked up and it started belching blue smoke from the exhaust and around the exhaust port. i cut the igniton, and now it wont start again
any ideas?
to what causes the revs to rise along with blue smoke???
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HELP!!!
May 28, 2008 13:51:05 GMT -5
Post by malakiblunt on May 28, 2008 13:51:05 GMT -5
lol found out why it wasnt starting  ran out of petrol! but it was the same story starts ticks over beautifully for a couple of minutes then then blue smoke and revs climb |
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HELP!!!
May 28, 2008 13:51:34 GMT -5
Post by solo2racr on May 28, 2008 13:51:34 GMT -5
This will sound stupid but, how much oil did you put in?
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HELP!!!
May 28, 2008 14:21:03 GMT -5
Post by malakiblunt on May 28, 2008 14:21:03 GMT -5
i put in 2 liters ive toped it up by about 30cc to make up for what it pissed out on the floor. its just on empty on the dip stick,
is the smoke and the revs climbing a symptom of wet sumping?
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HELP!!!
May 28, 2008 16:22:09 GMT -5
Post by solo2racr on May 28, 2008 16:22:09 GMT -5
The smoke may be but not the revs. Sounds like a major leak somewhere, both oil and air getting in.
But, like SteveC mentioned, it sounds like a breather issue.
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HELP!!!
May 28, 2008 16:42:21 GMT -5
Post by malakiblunt on May 28, 2008 16:42:21 GMT -5
the breather is defintly clear.
thats what i figured that ther must be air getting in to , but how???
could it be the oil pump? if its not scavenging?
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lurch
Full Member
Posts: 217
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HELP!!!
May 28, 2008 17:40:07 GMT -5
Post by lurch on May 28, 2008 17:40:07 GMT -5
the breather is defintly clear. thats what i figured that thee must be air getting in to , but how??? could it be the oil pump? if its not scavenging? That's my thoughts on the oil return being blocked ,try undoing the sump plug & measuring the amount of oil that comes out. I get around 6-700cc from mine after its been run for 10 minutes or so . A vast amount more than this would indicate that the oil pump isn't scavenging You may also have another issue with the carb/fuel supply , motors usually increase there idle speed as the fuel supply runs out , check the fuel tap for a good flow,maybe the vacuum tap isnt working as it should ,try the prime position also theres a filter incorporated in the fuel tap you'll need to remove it from the tank (2 screws ) that maybe bunged up with rust after 30 odd years . Good luck LURCH |
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HELP!!!
May 28, 2008 17:54:14 GMT -5
Post by malakiblunt on May 28, 2008 17:54:14 GMT -5
i just emptied the sump i didnt messure it but i would geuss around 700cc i pored it back into the oil tank and it went from below E to above F.
i looked in the oil tank whilst it was running , it was makeing gluging noises and ther wasnt much oil spraying around.
i was wondering if the rev increase was unconected to the oil , but it is very pronouced smokeing and rev rise together.
the engine shows no signs of stopping as the revs go up, and it will still rev on the throtle, but i always switch it off becuase its freaking me out, i know if its classic wet sumping the oil should just burn off, but its the revs that worry me, and i dont want to end up seizing the engine form oil starvation.
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lurch
Full Member
Posts: 217
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HELP!!!
May 29, 2008 1:28:23 GMT -5
Post by lurch on May 29, 2008 1:28:23 GMT -5
On the gearbox seal issue,if the crankcase was pressurized wouldn't the seal behind the alternator flywheel also leak ? worth checking !!
LURCH
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ran out of petrol!