<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body><div><font face="sans-serif">Also check to see if you have a leak at the intake manifold where the carbs bolt on. Spray some carb cleaner while running and see if rpm changes. </font></div><div><font face="sans-serif">That has to be fixed before carbs can be balanced. </font></div><div><br></div><div><br></div><div><br></div><div id="composer_signature"><div style="font-size:85%;color:#575757" dir="auto">Sent from my Verizon, Samsung Galaxy smartphone</div></div><div><br></div><div style="font-size:100%;color:#000000"><!-- originalMessage --><div>-------- Original message --------</div><div>From: Steve via Datsun-roadsters <datsun-roadsters@autox.team.net> </div><div>Date: 2/19/18 8:00 PM (GMT-08:00) </div><div>To: datsun-roadsters@autox.team.net, gmroyston@hotmail.com </div><div>Subject: Re: [Roadsters] Datsun-roadsters Digest, Vol 10, Issue 14 </div><div><br></div></div>Gerry ,<br><br> The number one reason for rocking and or shaking Sporty car engines <br>,is Out of sync carbs and bad engine mounts .<br><br>Timing chains are not the place to start with that issue ,however ,that <br>doesn't mean you may not need timing chains .<br><br>Not many people know or realize that the U 20 timing chain system , due <br>to design short comings , are only good for<br><br>50 k + - , reliable use. You can sometimes run longer and also not as <br>long ,without problems ,or blown engines as a result,<br><br>usually caused by issues not corrected or managed in the design .<br><br> Back to shaking engines... You may need a SU tuning and setup person <br>to get it running well. Another known issue with the U20<br><br>are the Poor carb bushings issues. Another is trying to use late model <br>dizzys trying to run too much timing at idle . Anyways ,this<br><br>issue isn't a magic fix to repair.<br><br><br>Best Regards ,<br><br>Steve Ehlers, owner of Rising Sun Performance , The Oldest Datsun <br>Specialty Shop in Texas .<br><br><br>> 1. Shaking Engine (Gerry Royston)<br>> <br>><br>> ----------------------------------------------------------------------<br>><br>> Message: 1<br>> Date: Fri, 16 Feb 2018 19:38:19 +0000<br>> From: Gerry Royston <gmroyston@hotmail.com><br>> To: "datsun-roadsters@autox.team.net"<br>> <datsun-roadsters@autox.team.net><br>> Subject: [Roadsters] Shaking Engine<br>> Message-ID:<br>> <BN6PR22MB05476B36D6BCEC541E8D44F4A7CB0@BN6PR22MB0547.namprd22.prod.outlook.com><br>> <br>> Content-Type: text/plain; charset="iso-8859-1"<br>><br>> I've had my 2000 Roadster for over a year and the engine has always shaken a lot when idling. This is starting to bother me. My mechanic says it might need a new timing chain which might be a good idea regardless. He tells me it's not related to engine mounts or anything like that. Just wanted to check to see if anyone else has had a similar issue before turning it over to him for an expensive timing chain job. Thanks for your help.<br>><br>><br>> Gerry Royston<br>><br>><br><br>________________________________________<br><br>datsun-roadsters@autox.team.net<br><br>Donate: http://www.team.net/donate.html<br>Archive: http://www.team.net/archive<br>Forums: http://www.team.net/forums<br>Unsubscribe: http://autox.team.net/mailman/options/datsun-roadsters/hrhaslett@yahoo.com<br><br><br></body></html>