[Vwdiesel] More Quantum Questions?

[lbaird119 at aol.com]

? Sounds like you should be able to see quite a few bubbles coming 


through the clear (now brown, mostlikely) fuel line.? You may need


to hold a light behind it while the car is running, to see them.? It'd 


take a pretty heavy stream of bubbles to cause it to hard start right 


away but that?IS what it sounds like.? That bad of an air leak can 


also come from the return side so don't necessarily rule hoses and 


connections on that side out just yet.? The input shaft seal can easily


do this too but wasn't that replaced?


? Unlikely any problems with the pump could cause this other than 


missing or bad seals, copper washers, etc.










-----Original Message-----

From: Bryan Belman <dieselwesty at yahoo.com>

To: vwdiesel at vwfans.com

Sent: Fri, Oct 30, 2009 4:10 am

Subject: Re: [Vwdiesel] More Quantum Questions?





No big deal about the heat shields.? If you have them to replace when you have   injectors out, good, but like you said, in your case that is not the issue, nor   is the return fuel lines.? Yes, you should always replace the heat shields, as   the book says so next time replace them.? 52 ft. lbs. is most important when   putting them back in along with some anti-seeze, but not to much and none below   the threads.    Does this car have a clear plastic or yellowed fuel line to IP.? Does it show   excessive bubbles?? That would cause this hard starting but I think if it were   that bad it would cause?rough running at idle as well.    Could be something internal in the pump, but not sure as I am a not a pump   expert.  Bryan Belman, Pt. Pleasant, NJ  04 Jetta Wagon TDI PD, 100hp, 5sp -- running :)  92 Jetta 1.6 Eco-Turbo Diesel -- running :)  82 Diesel Westy 1.9NA -- running :}  70 Type 1 stock Beetle -- Not running :(           ________________________________  From: William J Toensing <toensing at wildblue.net>  To: vwdiesel at vwfans.com  Sent: Fri, October 30, 2009 6:31:56 AM  Subject: [Vwdiesel] More Quantum Questions?    New glow plugs checked & installed. Quantum still does not start any better than   before, but with new fresh battery, it turns over rapidly & eventually does   start. Once it catches, it starts right off & runs nicely. It acts like it is   not getting fuel.? Makes no difference if I start it right after stopping or   wait a while, engine hot or cold. I did replace the return hoses, except for one   & plan to replace that one too but I still think the problem is elsewhere,   probably with the IP. I didn't replace the "heat shield" yet but used the old   ones but new ones are on order at our local Grass Valley foreign car parts   house. I notice the Quantum does NOT smoke when I "POUR THE COAL" to it although   it did smoke a bit earlier as I recall.  Bill Toensing  _______________________________________________  Vwdiesel mailing list  Vwdiesel at vwfans.com  http://www.audifans.com/mailman/listinfo/vwdiesel  _______________________________________________  Vwdiesel mailing list  Vwdiesel at vwfans.com  http://www.audifans.com/mailman/listinfo/vwdiesel