[T3] loss of power & sputtering … need WOTG

[Mike Fisher]

I use a 0-100 lb water pressure gauge from Home Depot rigged with nipple
and fuel hose to set my fuel pressure at 30lbs at the test port between my
3-4 injectors.  Some have the test port between the 3-4 injectors.  If
there is any crud in your filter you should probably drain/filter/clean
your gas & tank.

On Sat, Jul 28, 2012 at 1:34 PM, Vern Creamer <vccreamer at cox.net> wrote:

> Not too long after I returned from the Invasion, my 72 Fastback MT FI
> started stuttering, stumbling, missing once the engine got warm.  Here are
> things I've tried; looking for suggestions as to what I have missed.  I am
> not an accomplished mechanic by any stretch; no suggestion is too
> elementary.  The car runs OK when cold but has less power than normal; when
> it gets warmed up, it's a real challenge to drive at all ... barely made it
> home when testing.
>
> 1.  valve adjustment and oil change 300 miles ago
> 2.  adjusted points gap
> 3.  replaced spark plugs gapped at .028" (2 of the old ones were at .040"
> upon removal; all 4 were the right light tan/gray color; #4 gap full of
> dry, gritty material) ... ran better after this, until it gets hot
> 4.  readjusted the Throttle Position Switch
> 5.  cleaned out the vac line at the intake air distributor
> 6.  retimed the engine following the Bentley instructions for the 72
> including idle adjustments with the vac lines plugged and then after the
> timing was set and the lines replaced.
> 7.  tested the battery voltage at mid-range RPMs ... approximately 13.8V
> 8.  checked to make sure the coil is wired correctly (terminals 15 & 1)
> 9.  tested the coil output by holding the wire from the coil near the
> engine block; spark is orange
>
> I am due for a fuel filter replacement, which I'll do this afternoon.
> The distributor was rebuilt approx. 3,000 miles ago by Jim Adney and ran
> GREAT for my 2,700 mile Invasion trip at 27.5 mpg.
>
> Some questions:
>
> 1.  What other kind of tests can I do to the coil?
> 2.  Fuel pump issue?
> 3.  Voltage Regulator replaced 13,000 miles ago, last May, with a
> solid-state unit
>
> Vern Creamer
> Elkhorn, NE
> 72 Orange Fastback "Citrus" FI, MT
> vccreamer at cox.net
>
>
>
> _______________________________________________
> VWType3.Org mailing list - type3 at vwtype3.org
> http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org
> Contact gregm at vwtype3.org if you need help with the list.
>



-- 
Eugene, Oregon

http://s169.photobucket.com/albums/u236/mr_bojangles500/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.vwtype3.org/private.cgi/type3-vwtype3.org/attachments/20120728/66d05b36/attachment.htm>