[T2] Power loss in 4th

[Avocado Tom Tarka]

Pat,

It's hard to tell as I haven't done many "long" trips where I'm driving 30
minutes or more, replete with long grades.  That said, I hadn't had any of
these problems before replacing the fuel pump and lines.

The fuel pump was replaced because of a fuel leak (which I afterwards
ascertained was probably the line and not the pump).  The tank was cleaned
4,000 miles ago, mostly because I was trying to convert the bus to diesel
and have since abandoned that project.

Cheers,
   Tom


---
  "We are MoTown.  We are professionals.  We're here to get the job done."

On Mon, Oct 12, 2015 at 6:33 PM, Pat Spragge/RFAN <Pat.Spragge at rfan.com>
wrote:

> Tom,
>
> Did the bus exhibit these same symptoms prior to having the tank cleaned
> and changing the fuel pump?  Is that why you had this work performed?
>
> *Pat*
>
>
>
> From:        Avocado Tom Tarka <avocadotom at gmail.com>
> To:        "<type2 at type2.com>" <type2 at type2.com>
> Date:        10/12/2015 10:24 AM
> Subject:        [T2] Power loss in 4th
> Sent by:        "type2" <type2-bounces at type2.com>
> ------------------------------
>
>
>
> Hi volks,
>
> I'm encountering some power loss issues which I'm hoping someone can
> provide insights on.  After about 30 minutes of driving and when my bus is
> fully warmed up, I'm experiencing power loss and sputtering.
>
> Data points:
> - only happens when going uphill, particularly with steep grades
> - happens primarily in 4th but may just be RPM related: it seems to occur
> below ~2500 rpm (just noticed it in 3rd)
> - new fuel pump
> - hear ticking sound from carb after stopping to cool down (like a wind-up
> kitchen timer ticks)
> - watched fuel getting sucked through pre-carb filter after stopping to
> cool down
> - fuel pressure verified to be 2.5 to 3 psi after installing new pump
> (IIRC)
>
> Bus also seems to be trending towards overheating when the power loss
> occurs. Not sure if that's related.
>
> Specs:
>
> 1971 bus
> 1600 SP engine
> Non-doghouse oil cooler
> 009 and 30-pict 2
>
> I'm guessing it's the fuel pump, or float, as the gas tank was recently
> cleaned, but I'm at my wits end.
>
> Any thoughts?
>
> Thanks!
>   Tom
>
> ----
> "We ----
> "We are MoTown. We are professionals. We're here to get the job done."
>
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