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Everything Dirt Bike
General Dirt Bike
KTM Crank Locking Bolt
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<blockquote data-quote="cleonard" data-source="post: 155279" data-attributes="member: 21"><p>I had never seen this type of crank locking bolt until I get my beta. It's very similar to the KTM design and even has the same copper washer system. I've not seen the crank yet, but I imagine that there is a small detent in one part of the crank that you try to get the bolt into after removing the copper washer. If you miss the hole naturally the bolt will scrape along the side of the crank. No worries about damage. It might have put a little scratch into it, but it's not really a problem. That's what oil filters are for.</p><p></p><p>Leak down tests are not usually super exact or repeatable. If you are not a TDC the chamber volume is larger so a constant leak will seem smaller than at TDC. There are several other variables as well. For example the rings are not at exactly that same spot in the bore and the leak might be different. </p><p></p><p>As far as the coolant goes, what about the bike puking some coolant due to a little overheating? My bike does it all the time if I'm on technical trails. It's the simplest explanation and often the correct one.</p></blockquote><p></p>
[QUOTE="cleonard, post: 155279, member: 21"] I had never seen this type of crank locking bolt until I get my beta. It's very similar to the KTM design and even has the same copper washer system. I've not seen the crank yet, but I imagine that there is a small detent in one part of the crank that you try to get the bolt into after removing the copper washer. If you miss the hole naturally the bolt will scrape along the side of the crank. No worries about damage. It might have put a little scratch into it, but it's not really a problem. That's what oil filters are for. Leak down tests are not usually super exact or repeatable. If you are not a TDC the chamber volume is larger so a constant leak will seem smaller than at TDC. There are several other variables as well. For example the rings are not at exactly that same spot in the bore and the leak might be different. As far as the coolant goes, what about the bike puking some coolant due to a little overheating? My bike does it all the time if I'm on technical trails. It's the simplest explanation and often the correct one. [/QUOTE]
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Everything Dirt Bike
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KTM Crank Locking Bolt
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