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i have two tiny indents on one of my cylinders and was wondering if i still can use this put new piston and rings and the whole top end and it wont cause nothing to damage or its not possible?
2 Small indents on sylinder walls useable?
- Thread starter baudog_69
- Start date
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Pics?
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no pics but there right below the exhaust port
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maybe YES, Maybe no
Main rule, if you can feel it with a thumbnail, then its too deep
Pics will be really helpfull
If they are below where the rings ride, you can get away with more.
Main rule, if you can feel it with a thumbnail, then its too deep
Pics will be really helpfull
If they are below where the rings ride, you can get away with more.
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i can feel it with my finger nail but when the sled blew up the compression was still there...its like 1 cm from the bottom of the exhaust port
well below the port you can still build compression...you would be amazed at what you can get away with and what some cylinders are like that we don;t know about..
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Honing would probably take it out i would always do it if i was putting new piston, rings, ect. Otherwise all parts will wear to the old surface your rebuild will last alot longer this way, measure everything while assembling and make sure all are within spec. JMT
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Indents below the exhaust port will have no effect on performance or life of the engine.
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If you hone it, i would be carefull not to over do it. I dont think it takes much to go threw the nikasil on the cylinders. I dont know forsure though. Look into it befor you do it.
:beer;:beer;:beer;
:beer;:beer;:beer;
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Below the port will have no effect I would still hone it a little. I usually do no matter what just to smooth everything out.
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i honed it all out and everything is smooth minus them to little indents below the exhaust port on one side..it all looks good tho besides that theres still lots of nikisil left on the walls of the cylinders
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anyone else got anythign to say about this problem if its good to put back to gether or i should have them send out and fixed...
Take it to a shop that has a good hone and have them run it. If it is low enough that the piston rings will never travel over it then Dont worry about it at all. But I agree with others, if its below the exhaust port you should be just fine, as long as it didnt hurt the nickesel plating.
Below ports should be alright. I have more than a few,, ummm,,,, divots in my cylinder right now (read: lots of em from an early season cold seize) as I'm waiting until the summer to redo it. I still am getting 119 lbs out of it.
What you dont want is flaking of the nikasil. Then you may have a problem. Or if the nikasil has seperated from the cylinder walls under the marks, which you will have now way of knowing until it comes apart on you. Takes alot to have that happen though.
I'd run it and not worry.
What you dont want is flaking of the nikasil. Then you may have a problem. Or if the nikasil has seperated from the cylinder walls under the marks, which you will have now way of knowing until it comes apart on you. Takes alot to have that happen though.
I'd run it and not worry.
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yeh i went to brent lindermans shop and showed him the cylinders and he said it will be fine it will just fill with oil and if it was his sled hed run it..soo its going back together once i get my top end rebuild kit
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