piston to bore clearance
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handofdave
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would an excessive piston bore clearance of 0.3mm cause my bike not to start from cold?
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bristolmod
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- Main scooter: Lambretta TV175 S3- what else!
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I would think so as its twice the max allowable clearance. I assume the ring gap is also excessive as well? Is there rather a lot of piston slap when you get it to run?
Whenever I get a cylinder rebored, I go for 3 thou (in old money)
Chris
Whenever I get a cylinder rebored, I go for 3 thou (in old money)
Chris
Scootering since 1968.
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handofdave
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new rings but gap is excessive,would the wear stop the engine from sucking the fuel in,when i finally get it running and warmed up it starts first kick when hot,by the way it is a short rod suzuki
- ArmandTanzarian
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handofdave wrote:would an excessive piston bore clearance of 0.3mm cause my bike not to start from cold?
You probably know this but I'll mention it anyway because I didn't. If you check the clearance with a feeler gauge, remember to halve the value because the other side of the piston will be touching the cylinder.
Meus Lambretta est non infractus. Is est quietus.
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handofdave
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no i didnt know that,thanks for the info,so the clearance is 0.15 would that stop it from starting?ArmandTanzarian wrote:handofdave wrote:would an excessive piston bore clearance of 0.3mm cause my bike not to start from cold?
You probably know this but I'll mention it anyway because I didn't. If you check the clearance with a feeler gauge, remember to halve the value because the other side of the piston will be touching the cylinder.
Why would you half the value?the clearance is the difference between piston and barrel.not half the differenceArmandTanzarian wrote:handofdave wrote:would an excessive piston bore clearance of 0.3mm cause my bike not to start from cold?
You probably know this but I'll mention it anyway because I didn't. If you check the clearance with a feeler gauge, remember to halve the value because the other side of the piston will be touching the cylinder.
No a 12 thou feeler gives you 12thou clearanceMuppet wrote:so im lookin at 12 thou feeler for 6 thou cleerence?
are u surecamel wrote:No a 12 thou feeler gives you 12thou clearanceMuppet wrote:so im lookin at 12 thou feeler for 6 thou cleerence?
C’est la vie
