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Post by Deleted on Mar 6, 2009 15:43:35 GMT
Hey all sorry i aint been about much, new work etc.
some may have seen my BSF post regarding my Jawa 500 quite a few months back. I still aint got the engine sorted, so im looking for some educated advice.
I started the bike up today and my description of the noise is a pneumatic drill inside the top of the engine. I took the cover off and all the pistons are in place springs are fine and the drive chain thingy is intact.
Also if i rev it too high the engine loses all power and stalls. Is it possible that a piston is jammed closed?
I really have no idea and would be grateful for any help. I know alot of people dont like me and will take this chance to have a laugh and joke but my bike is my pride and joy and i really do want it fixed so i would appreciate genuine help.
Shaun
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Post by admin on Mar 6, 2009 15:48:46 GMT
Have you looked at the piston rings?
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Post by Deleted on Mar 6, 2009 16:02:57 GMT
would they be in the part totally smothered in Oil. i dont think i have. how would i know if they are knackered?
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Post by admin on Mar 6, 2009 16:22:39 GMT
would they be in the part totally smothered in Oil. i dont think i have. how would i know if they are knackered? I've no idea what they are, but when I had a little bike for messing around on (not a speedway one), the piston rings went on it and that was it more or less knackered. Here's what wikipedia has to say on piston rings: en.wikipedia.org/wiki/Piston_ring |
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Post by schumi on Mar 6, 2009 16:24:42 GMT
Now it's the other way around - you get your bike out and it's you more or less knackered.
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Post by admin on Mar 6, 2009 16:26:39 GMT
Now it's the other way around - you get your bike out and it's you more or less knackered. So true. |
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Post by Deleted on Mar 6, 2009 16:27:57 GMT
Thanks Sube. I think i will need to find a engine tuner in Scotland or near by that i can take it to. I really am a novice when it comes to delving into engines i know how and why they work but after that im useless.
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Post by admin on Mar 6, 2009 16:29:11 GMT
Thanks Sube. I think i will need to find a engine tuner in Scotland or near by that i can take it to. I really am a novice when it comes to delving into engines i know how and why they work but after that im useless. Why not see if you can have a word with one of the riders at Armadale. Or try Topcat over at the chatzone, he has some speedway bikes. |
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Post by Deleted on Mar 6, 2009 16:36:33 GMT
Well see one rider already helped me collect the bike and get it going in the beginning but with the new season upon us i dont want to be asking any of them as they will have their own preperations to do.
I may speak to TopCat though thanks for the heads up on him
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Post by Deleted on Mar 6, 2009 19:03:44 GMT
I know alot of people dont like me and will take this chance to have a laugh and joke Hey, who says we don't like you? We can agree to disagree can't we  |
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Post by Deleted on Mar 6, 2009 19:52:52 GMT
I had plenty of experience with bikes in my younger days but i could always get them going with a few vodka and cokes.
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Deleted
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Post by Deleted on Mar 6, 2009 22:29:51 GMT
I took the cover off and all the pistons are in place springs are fine and the drive chain thingy is intact. They only have one piston mate..... |
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Post by Deleted on Mar 7, 2009 13:09:05 GMT
Well is had 4 springs i assumed they were pistons.
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Post by admin on Mar 7, 2009 14:06:54 GMT
A speedway engine has four valves, unless it's a very old one.
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Post by Deleted on Mar 7, 2009 14:53:57 GMT
Sounds like you found the valve springs. Take a tip, put it all back in place and take it to somebody who knows about engines before you fuck it right up... |
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