[Vwdiesel] Yellow dot pumps and associated stuff.

James Hansen jhsg at sasktel.net
Fri Nov 19 07:50:54 PST 2010


180 bar is high, and pump longevity would start to suffer I would think.
You're probably right on the 3 vs 8 thing.
I ran a 1.6D at 155bar years ago, starts were a tad better in the cold
(-40C).  I think it made some improvement in economy too, but that was a
long while ago.  If memory serves, I set them to 15b over turbo spec, which
should be 155 and ran a tad more advance to account for the delay in
injector opening at that pressure.
Good book, thanks for the link Mark.
-james



-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of mark shepherd
Sent: November-19-10 3:18 AM
To: vw fans
Subject: Re: [Vwdiesel] Yellow dot pumps and associated stuff.


Thanks for the responses Tony, Bryan, & Loren.
I think it was a typo error, or someone's eyes fading and seeing an 8 where 
it was really a 3...
Perhaps a comment from Farmer Joe or Val, or Sandy would seal it.

Mark



----- Original Message ----- 
From: "mark shepherd" <mark at shepher.fsnet.co.uk>
To: "vw fans" <Vwdiesel at vwfans.com>
Sent: Thursday, November 18, 2010 2:08 AM
Subject: [Vwdiesel] Yellow dot pumps and associated stuff.


>
> The yellow dot pumps were a different breed to the usual ones, and as far 
> as I can tell had a steeper rate of pump pressure, possibly implying a 
> faster dynamic advance.
> They were timed to 1.15mm aparently, but a recent rumour is that the 
> injectors were set to 180 bar, rather than the more common 130 bar!
> Does anyone know if that is correct?
> Apparently an early Bentley will have the info.
> Cheers,
> Mark
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
> 



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