[Vwdiesel] 1.9 NA diesel missing under power in '82 vanagon

[Shawn Wright]

On 18 Sep 2006 at 15:52, Bryant Baecht <bbaecht at sunflower.com> wrote:

> Hi all,
>      Searched the archives and not getting the info I need.  Last night I
> noticed my '82 vanagon was missing under power and emitting white / blue
> smoke when it was missing.  Idle seems fine.  I changed out the fuel filter
> thinking that might be it but no change.  Hoping against hope not IP so gonna
> pull the injectors and see how they look.  Any other easy ideas?  I better
> investigate the fuel line coming form the fuel filter as well going to the IP. 
> Engine is new 1.9 from Overland and has 10K miles on it.  Been in the bus just
> short of a year now.

Sounds like it could be air in the fuel line. Do you have a clear section of line before the 
pump? If so, watch for bubbles while increasing engine speed by hand. Could be a loose 
connection somewhere between tank and pump, and/or blocked tank screen. To check the 
latter, remove filler cap, then remove outlet hose from tank and check flow. Or you could 
install a vacuum gauge in the line somewhere. 

You may also want to check valve and pump timing - you never know when they can decide 
to slip, especially the cam sprocket.


Shawn Wright
http://members.shaw.ca/vwdiesels
'88 Westy 1.6TD 5 speed
'85 Jetta Diesel 1.6NA