I agree with Les on the NGKs in Alfa twinks. Not only do they last longer, the foul resistance is quite remarkable. It is so remarkable that I once, in the not too distant past, purchased a Spider that I thought might need valve seals (at the very least). The worst fear had already been alleviated: The guy I was buying the car from had procured a rebuilt, Ingram Spica pump. The pump was in the trunk. That p.o. had installed the latest Bosch miracle plug with 4 electrodes trying to cure the plug fouling to no avail. The car would start and run reasonably well one time. The next time the car was started the plugs would be fouled. I simply changed to NGKs. Problem solved. And the saga of another cheap Alfa procured.
BTW, that Spider is no longer cheap. In the ensuing 3 years it has received new paint over its rust-free body, and the top and seats have been freshened. The Arizona sun had taken its toll. It is now lovely, if I do say so myself. It is a keeper, I do believe. Peace, Ben Received: by 10.231.160.78 with SMTP id m14mr4229368ibx.60.1272579410714; Thu, 29 Apr 2010 15:16:50 -0700 (PDT) Received: by 10.231.184.74 with SMTP id cj10cs227536ibb; Thu, 29 Apr 2010 15:16:50 -0700 (PDT) Received: from majordomo by krusty-motorsports.com with local (Exim 4.71) (envelope-from <[email protected]>) id 1O7c2B-0004vw-8O for [email protected]; Thu, 29 Apr 2010 22:16:39 +0000 Received: from krusty-motorsports.com (krusty-motorsports.com [192.94.170.8]) by mx.google.com with ESMTP id dw22si1388021ibb.71.2010.04.29.15.16.50; Thu, 29 Apr 2010 15:16:50 -0700 (PDT) Return-Path: <[email protected]> Reply-To: "Les Singh" <[email protected]> From: "Les Singh" <[email protected]> Sender: <[email protected]> To: <[email protected]> In-Reply-To: <[email protected]> Subject: [alfa] RE: alfa-digest V10 #2256 Date: Thu, 29 Apr 2010 17:16:49 -0500 Message-ID: <7f804caf575c4d94b8600863ff1b6...@llessingh> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acrn4hceDtoY7eeUT/GJvJNIQhC1NAABXGIg Date: Wed, 28 Apr 2010 21:25:13 EDT From: [email protected] Subject: Re: [alfa] My GTV-6 has developed a "miss"/irridium spark plugs Hi Ken, I've recently been running Bosch platinum single electrode plugs in the Berlina and they don't seem to last all that long. I have some 4 electrode plugs I'm going to try next. Would you mind providing heat range/part numbers for the two iridium plugs? Is there a Denso or an NGK iridium that works in a 2 liter quattro banger? I'm also intrested in the plugs for a 6. Stevan Thomas 73 Berlina Veloce 84 GTV6 Stevan If can butt in here : Can't help with the GTV6 but for the Berlina the NGK B7ES is the correct plug and lasts way better than any Bosch plug I've tried. I used Bosch in various engine and the only one I kept using them in was the Formula Ford but we changed to new ones for qualifying and the races - expensive because these were the special competition types with small hex and special electrodes and cost heaps. NGK BP7ES may give you better running and performance than the B7ES. It's the projected nose type but for use in 2 litre Alfa engines, each plug will need to be indexed by marking the position of the ground electrode on the porcelain or body of the plug, then ensuring that the electrode ends up between the valves when the plug is installed. If this isn't done, you may hear the clicking sound of a valve (intake more often than exhaust) contacting the electrode. If you get fouling for any reason (state of the engine, tune etc) go to the hotter B6ES or BP6ES but these are definitely not suitable for high rpm use. Les Back from La Bella Italia.. and yes, I visited the Alfa Museum! -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected] -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
