[Vwdiesel] Vwdiesel Digest, Vol 54, Issue 6

Fri Apr 4 12:30:46 PDT 2008

As far as the engine not going past 3 K I don't know what to tell you. But when I was working in WY both my Rabbits smoked a lot (for low sulfur fuel) and once I returned to SD they only smoke when starting cold. There was also a power difference. If you are planning a trip with it to a lower elevation somewhere you could tell if it is just elevation sickness. I would say the timing is off a bit also since with the better air before you wouldn't have seen this as much but lack of air you tell more on timing problems. At the coal mine I worked at one of the mechanics said that for a diesel engine smoke this is what they tell. If black, to much fuel and not enough air, if blue, oil is getting burned, if white you are boiling the fuel some (like at cold start up the fuel boils more then it burns without glow plugs-hence white smoke or there is way to much fuel) or there is coolant that is burning (boiling). But if you have all your coolant that shouldn't be the problem. There was a loader at the mine that would have white smoke for a long time until really warm and it was a fuel injector problem putting to much fuel in at startup and it took a long time to clear out.
Travis 

> From: vwdiesel-request at vwfans.com> Subject: Vwdiesel Digest, Vol 54, Issue 6> To: vwdiesel at vwfans.com> Date: Fri, 4 Apr 2008 12:00:02 -0700> > Send Vwdiesel mailing list submissions to> vwdiesel at vwfans.com> > To subscribe or unsubscribe via the World Wide Web, visit> http://www.audifans.com/mailman/listinfo/vwdiesel> or, via email, send a message with subject or body 'help' to> vwdiesel-request at vwfans.com> > You can reach the person managing the list at> vwdiesel-owner at vwfans.com> > When replying, please edit your Subject line so it is more specific> than "Re: Contents of Vwdiesel digest..."> > > Today's Topics:> > 1. replacing the back springs (paul lew)> 2. diesel quantum (mikitka)> 3. Coughing rabbit (Barrick, David)> 4. Re: Coughing rabbit (Terry Briggs)> 5. Re: Coughing rabbit (Val Christian)> 6. Re: Coughing rabbit (Sandy Cameron)> 7. Re: Coughing rabbit (James Hansen)> 8. Re: Coughing rabbit (Sandy Cameron)> 9. Re: Coughing rabbit (LBaird119 at aol.com)> > > ----------------------------------------------------------------------> > Message: 1> Date: Thu, 3 Apr 2008 12:48:44 -0700 (PDT)> From: paul lew <biovolks at yahoo.com>> Subject: [Vwdiesel] replacing the back springs> To: vwdiesel at vwfans.com> Message-ID: <309805.91432.qm at web62414.mail.re1.yahoo.com>> Content-Type: text/plain; charset=iso-8859-1> > > When replacing the back springs, I find it alot less hassle to get at the top bolt by removing > the back of the back seat, it pretty easy.> And definately get a set of spring compressors, you can find them pretty cheap, I bought mine> at a place called princess auto for about $20(canadian).> Put them on before jacking up the car,> and leave them on the springs when transferring, then while lowering the car again they come right off.> Paul> P.S.> I was told that the newer Jettas have stronger springs, to rectify the cammon sag problem and they can be used strait acroos to the older Jettas.> > > ---------------------------------> You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost.> > ------------------------------> > Message: 2> Date: Thu, 3 Apr 2008 18:34:58 -0400> From: "mikitka" <mikitka at embarqmail.com>> Subject: [Vwdiesel] diesel quantum> To: <vwdiesel at vwfans.com>> Message-ID: <020201c895da$f2bfbbc0$6401a8c0 at speedracer>> Content-Type: text/plain; charset="us-ascii"> > Found this on eBay, it isn't mine. It is a 3.5 hr drive from me.> > > > http://tinyurl.com/2c9xpf> > > > Nick> > > > ------------------------------> > Message: 3> Date: Mon, 31 Mar 2008 12:46:29 -0600> From: "Barrick, David" <DavidBarrick at catholichealth.net>> Subject: [Vwdiesel] Coughing rabbit> To: vwdiesel at vwfans.com> Message-ID:> <9E36BFC3540F3A448098946F0A475F0B397793 at chimsx04.CHI.catholichealth.net>> > Content-Type: text/plain; charset=us-ascii> > I recently moved to Denver, now my 81 diesel rabbit which ran great in> Oklahoma runs like crap, lots of white smoke, no power, won't rev past> 3k rpm without lots of coughing and missing. Any ideas and how to tune> this engine? Engine is newly rebuilt, along with the pump and injectors.> Compression is over 400psi on all cylinders.> > > > Best Regards;> > David Barrick> > davidbarrick at catholichealth.net> > Office 720-875-8121> > > > > > ------------------------------> > Message: 4> Date: Fri, 4 Apr 2008 02:53:54 -0400> From: Terry Briggs <vbriggs at stny.rr.com>> Subject: Re: [Vwdiesel] Coughing rabbit> To: vwdiesel at vwfans.com> Message-ID: <1bac65b3cf3f12e336de7473847b4cd5 at stny.rr.com>> Content-Type: text/plain; charset=US-ASCII; format=flowed> > I would suspect it's an altitude issue, I'm thinking you will need to > reduce the amount of fuel it's getting. The air is thinner so you're > getting a lot of fuel and not enough air. Perhaps give the fueling > screw a slight turn and see if it helps.> On Mar 31, 2008, at 2:46 PM, Barrick, David wrote:> > > I recently moved to Denver, now my 81 diesel rabbit which ran great in> > Oklahoma runs like crap, lots of white smoke, no power, won't rev past> > 3k rpm without lots of coughing and missing. Any ideas and how to tune> > this engine? Engine is newly rebuilt, along with the pump and > > injectors.> > Compression is over 400psi on all cylinders.> >> >> >> > Best Regards;> >> > David Barrick> >> > davidbarrick at catholichealth.net> >> > Office 720-875-8121> >> >> >> > _______________________________________________> > Vwdiesel mailing list> > Vwdiesel at vwfans.com> > http://www.audifans.com/mailman/listinfo/vwdiesel> >> >> M.I. 6> Custom Design and Fabrication> 2576 King Circle> Corning, New York 14830> Vbriggs at stny.rr.com> > > ------------------------------> > Message: 5> Date: Fri, 4 Apr 2008 08:15:13 -0400 (EDT)> From: Val Christian <val at mongo.mongobird.com>> Subject: Re: [Vwdiesel] Coughing rabbit> To: vbriggs at stny.rr.com (Terry Briggs), vwdiesel at vwfans.com> Message-ID: <200804041215.m34CFDqS004644 at mongo.mongobird.com>> Content-Type: text/plain; charset=us-ascii> > I've had this problem several times. I've had it when new (rebuilt)> injectors failed. And I've had it when something is wrong with the> timing. I can't say what the problem might be in your case...I just> thought I'd share what my previous experiences were.> > In your case, I would also suspect sticking rings, and ask how the > compression varies. 400 as I recall, is on the low side. > > Does the engine improve as it warms up?> > > > > > > I would suspect it's an altitude issue, I'm thinking you will need to > > reduce the amount of fuel it's getting. The air is thinner so you're > > getting a lot of fuel and not enough air. Perhaps give the fueling > > screw a slight turn and see if it helps.> > On Mar 31, 2008, at 2:46 PM, Barrick, David wrote:> > > > > I recently moved to Denver, now my 81 diesel rabbit which ran great in> > > Oklahoma runs like crap, lots of white smoke, no power, won't rev past> > > 3k rpm without lots of coughing and missing. Any ideas and how to tune> > > this engine? Engine is newly rebuilt, along with the pump and > > > injectors.> > > Compression is over 400psi on all cylinders.> > >> > >> > >> > > Best Regards;> > >> > > David Barrick> > >> > > davidbarrick at catholichealth.net> > >> > > Office 720-875-8121> > >> > >> > >> > > _______________________________________________> > > Vwdiesel mailing list> > > Vwdiesel at vwfans.com> > > http://www.audifans.com/mailman/listinfo/vwdiesel> > >> > >> > M.I. 6> > Custom Design and Fabrication> > 2576 King Circle> > Corning, New York 14830> > Vbriggs at stny.rr.com> > _______________________________________________> > Vwdiesel mailing list> > Vwdiesel at vwfans.com> > http://www.audifans.com/mailman/listinfo/vwdiesel> > > > > > ------------------------------> > Message: 6> Date: Fri, 04 Apr 2008 08:59:42 -0400> From: Sandy Cameron <scameron at storm.ca>> Subject: Re: [Vwdiesel] Coughing rabbit> To: "Barrick, David" <DavidBarrick at catholichealth.net>,> vwdiesel at audifans.com> Message-ID: <1.5.4.32.20080404125942.009c3940 at pop.storm.ca>> Content-Type: text/plain; charset="us-ascii"> > At 12:46 PM 31/03/2008 -0600, you wrote:> >I recently moved to Denver, now my 81 diesel rabbit which ran great in> >Oklahoma runs like crap, lots of white smoke, no power, won't rev past> >3k rpm without lots of coughing and missing. Any ideas and how to tune> >this engine? Engine is newly rebuilt, along with the pump and injectors.> >Compression is over 400psi on all cylinders.> >> > > Altitude sickness> > Try this: REMOVE the air intake filter for a short drive and see if that> makes any difference.> > If so, replace it, often, or> > Get a turbo, or> > Rig a ram air intake like Roger's at 4crawler.> > And, you may have to check and adjust the timing.> > Operating a non-turbo diesel at 5000 feet needs more air, perfect spray> pattern injectors, and optimum timing, and still will result in minimum> performance.> > Sandy> > > > ------------------------------> > Message: 7> Date: Fri, 04 Apr 2008 08:25:49 -0600> From: James Hansen <jhsg at sasktel.net>> Subject: Re: [Vwdiesel] Coughing rabbit> To: "Barrick, David" <DavidBarrick at catholichealth.net>> Cc: vwdiesel at vwfans.com> Message-ID: <47F63A6D.9060801 at sasktel.net>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed> > what is the timing set at?> If it's on the low side (under 1.00 mm) altitude changes are more > pronounced.> Valve set is very important. Small intake valve lash changes greatly > effect dynamic compression- too little and performance REALLY drops off > because the valve stays open a tad too long. When you get a mile high > and the air is cheaper, then all this stuff gets more critical.> It's most likely a deal where it's not one specific thing, but an > additive effect of a couple of small factors like timing and valve lash > that are working together.> -james> > Barrick, David wrote:> > I recently moved to Denver, now my 81 diesel rabbit which ran great in> > Oklahoma runs like crap, lots of white smoke, no power, won't rev past> > 3k rpm without lots of coughing and missing. Any ideas and how to tune> > this engine? Engine is newly rebuilt, along with the pump and injectors.> > Compression is over 400psi on all cylinders.> > > > > > > > Best Regards;> > > > David Barrick> > > > davidbarrick at catholichealth.net> > > > Office 720-875-8121> > > > > > > > _______________________________________________> > Vwdiesel mailing list> > Vwdiesel at vwfans.com> > http://www.audifans.com/mailman/listinfo/vwdiesel> > > > > > > ------------------------------> > Message: 8> Date: Fri, 04 Apr 2008 11:48:04 -0400> From: Sandy Cameron <scameron at storm.ca>> Subject: Re: [Vwdiesel] Coughing rabbit> To: "Barrick, David" <DavidBarrick at catholichealth.net>,> vwdiesel at audifans.com> Message-ID: <1.5.4.32.20080404154804.009dee74 at pop.storm.ca>> Content-Type: text/plain; charset="us-ascii"> > At 07:29 AM 04/04/2008 -0600, you wrote:> >Any recommendation to what the optimal pump timing would be? I currently> >have it set at 1.00mm.> >> > Sounds about right, how about the cam timing?> Are you sure it's exactly right? If it's off a bit, it can cause the> symptoms youdescribe.> > You say it was rebuilt recently, and injectors are new or overhauled, and> comperssion is good, so the major items are covered. > > What remains is enough air to burn off the fuel injected, the timing of> valves and injection, and the amount of peak fueling. > (the screw with the stainless steel lock collar on it)> > If you can turn it in a little, (clockwise) it will reduce the smoking, but> do nothing for the performance.> > I'd say the issues are not enough air, or timing of valves or injection.> > Sandy> > > > ------------------------------> > Message: 9> Date: Fri, 4 Apr 2008 13:06:57 EDT> From: LBaird119 at aol.com> Subject: Re: [Vwdiesel] Coughing rabbit> To: DavidBarrick at catholichealth.net, vwdiesel at vwfans.com> Message-ID: <cc2.2adc849c.3527ba31 at aol.com>> Content-Type: text/plain; charset="US-ASCII"> > With white smoke it's not typical over fueling. That would be> black smoke. If it's not using oil then it's tight intake valves, > timing being off (cam or pump) or a bad injector. > With total power being down I'd first make sure you don't have > a yellow dot pump. That'd put the timing off about the right > ammount to cause the problems with one issue. Otherwise I'd > check the injectors. It'd take probably a couple of them being > pretty bad or all of them shooting like really old ones to do it. > Cam and lash could contribute but I seriously doubt they would > affect effective compression enough to cause symptoms that bad. > Clogged air filter maybe but that should leave a lot of black smoke > most of the time.> If the fuel filter is really clogged it might affect the timing enough > to cause it. It not only affects the amount of fuel getting to the > engine but the internal pressure as well. Also make sure the > return to the tank line isn't clogged. Not sure which way the > pressures affect the pump's output. A GM pump will choke down > and die if the return is clogged, due to internal pressure changes.> Loren> > > **************> Planning your summer road trip? Check out AOL Travel > Guides.> > (http://travel.aol.com/travel-guide/united-states?ncid=aoltrv00030000000016)> > > ------------------------------> > _______________________________________________> Vwdiesel mailing list> Vwdiesel at vwfans.com> http://www.audifans.com/mailman/listinfo/vwdiesel> > > End of Vwdiesel Digest, Vol 54, Issue 6> ***************************************
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