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Date:         Sat, 25 Nov 2000 18:45:53 -0800
Reply-To:     Bill Davidson <wdavidson@THEGRID.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Bill Davidson <wdavidson@THEGRID.NET>
Subject:      Re: 3-prong Spark plugs?
Comments: To: The Bus Depot <ron@NETCARRIER.COM>
Content-Type: text/plain; charset="iso-8859-1"

Ron, I notice you didn't mention the Bosch Platinum Quad plug below.... I also seem to remember you don't sell them on you web site... what is the reason for this?

I seem to recall that some list members have reported that the Bosch Tri Tip Platinum plus caused the head to run hotter.... and some speculation that this could cause the head gaskets to deteriorate quicker... and that the Platinum Quad ran cooler....

Can you enlighten us?

Thanks,, Bill Davidson

----- Original Message ----- From: "The Bus Depot" <ron@NETCARRIER.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: Friday, November 24, 2000 8:12 AM Subject: Re: 3-prong Spark plugs?

> Some correction/clarification is in order here. > > First of all, the part numbers for the correct tri-electrode Bosch plugs for > a Vanagon are W7DTC or WR7DTC - not W7TDC as erroneously mentioned in the > below post. (Note letter reversal.) The only difference between the W7 and > the WR7 is that the latter adds a resistor to prevent radio interference > from your engine electrical system. That is the one that we stock, for > $3.75 each. (If purchased as part of a $50+ order, you get an additional 5% > listmember discount on request.) Incidentally, Joel is correct that these > are for all watercooled Vanagons (except diesel of course) - not just '85. > > If you want the stock, single-electrode Bosch plugs (basically equivalent to > the W7CC0 that came factory-installed), that's the W7CC, and they run $1.25 > each. These are the plugs that we include with our tune-up kits, and are > what the vast majority of Vanagon owners buy. > > There is also a Platinum Plug, the 4233, for $2.49 each, but for my money if > I were going to upgrade over the stock plugs I'd jump right to the > tri-electrode WR7DTC's. > > - Ron Salmon > The Bus Depot, Inc. > www.busdepot.com > (215) 234-VWVW > > > > the Bosch W7CC0 and Beru 14L-7CU/14L-7C are > > the recommended ones in the owners manuals. However > > the W7 is the ticket ... that's the Bosch heat range, so > > you're ok with those triple-prong plugs. i've been running them > > for about five years and love 'em. > > > > > After speaking with Bus Boys, I was informed that the 3-prongers > > > are for '85 only? Is this right? > > Bullshit. W7 are for any bus that needs that heat range, and that's > > any watercooled bus. i KNOW the 86-91's require the W7 range, and i > > think the 83-85 watercools do as well. > > > > my advice: replace it with more Bosch W7TDC. that's the only plug i > > buy nowadays. i can't prove it, but my overall mpg has gone up 1.0 mpg > > since i put them in. >


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