Restore RC Nitro Piston to Liner Fit
If your nitro rc piston to liner fit becomes less that perfect, it is EASY to refit the piston to the liner. Buy yourself a VERY GOOD tubing cutter from Sears ( http://www.sears.com/shc/s/p_10153_12605_00951691000P?vName=Tools ) about $32.00. It will be a once in a lifetime purchase that you will use over and over. Don’t ever ever ever ever use this cutter for anything else. The wheel that comes with the cutter will last almost indefinitely, but you should pick up a pack of spares. Keeping the cutter razor sharp is critical.
OK, how to use this tool.
Almost all nitro rc pistons have an oil groove at the top of the piston. It is usually VERY NEAR the top of the piston. If the piston does not have an oil groove, it is easy to make one with the tube cutter. The cutter will EXTRUDE the aluminum in the oil groove making the piston tighter in the liner. It is CRITICAL to be very careful here not to get the piston too tight. You want to push the piston up into the liner and when it stops, look into the exhaust port and see the wrist pin in the MIDDLE of the exhaust port window. This is exactly how tight you want the piston to fit. This re-fit of the nirto rc piston can be done over and over. The fit will go away quicker than if the piston was perfect to start with, but this method will recover a loose fitting piston/liner.
This technical tip is provided by The RC Engine Analysis Software. I hope that you found this tip helpful. I would also like to offer you a Special Deal on The Engine Analysis Software available ONLY to you and those people who have signed up for our Mailing List on our Web Site. If you would like to have your copy of the Engine Analysis Software, use the order link at: http://engine-analysis-software.com and use the Discount Code: “UAW”. This will allow you to buy our software for $25 off of the regular $99.95 price. This is a limited time offer, so get the software the Pros use and advance your performance.
I would also like to invite you to join the NEW EAP Discussion Forum to find answers on the most effective use of the software. To join this Forum, Sign Up at: http://engine-analysis-software.com/cgi-bin/yabb2/YaBB.pl?action=register This forum has not been made Public Except to my mailing list. It will build quickly as I put out the link to our Software Users. It is MANDATORY to sign up using your REAL NAME. It will be a closed list open only to people using the Engine Analysis Software. I will not use your e-mail address for ANY purpose other that this Forum!!!
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Marten (Marty) Davis Owner
RC Nitro Engine-Analysis-Software.com
7 time National Champion
Member IMPBA Hall of Fame
Numerous National Speed Records
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