Robbie,
I had similar lack of high speed running on my 240Z years ago. Turned out
I got a tank full of dirty gas that plugged up the fuel filter. The 240Z
had 2 filters and the first filter, inside the fuel pump was the one
getting clogged. I just kept replacing it when needed and the crud was
gone in about 10 tanks of fuel.
The roadster just has one filter, on the passenger's side of the engine
compartment. Try taking it off and pouring fuel through it, it should flow
through as if there isn't anything between the inlet and outlet. Replace
if needed.
Peace,
Pat
- Support Habitat for Humanity, A "hand up", not a "hand out" -
Pat Horne, Network Manager, Shop Supervisor, Future planner
CS Dept, University of Texas, Austin, Tx. 78712 USA
voice (512)471-9730, fax (512)471-8885, horne@cs.utexas.edu
On Thu, 20 Jun 2002 robbieharrison@comcast.net wrote:
> A month or so ago there was a long thread on vapor lock, which I really
> didn't follow much at the time because I had never experienced it. Not
> really sure if that's what's happening now, but it sure seems to meet
> the symptoms mentioned. I've got a '68 U20 with SUs and stock fuel pump.
> No problems cruising around town, but the last couple of times I hopped
> up on the highway she started sputtering and coughing. Pulled off, sat
> for a minute, everything came back to normal and was content to ride
> around at low speeds. Engine temp seems to be fine, and she only gets
> upset when I want to take a dash on the highway. Suspecting vapor lock,
> I went searching for a way to cool off the fuel, and found a fuel cooler
> at Summit Racing, at the link below:
>
> http://store.summitracing.com/default.asp?target=search.asp%3FType%3Dbys
> ummitpart%26Part%3Dflx-4136%26Search.x%3D1%26SearchType%3DBoth
>
> Has anybody tried such a thing on their roadster? It says it's designed
> to work with high output fuel pumps - would the stock pump qualify? Or
> does it sound like I'm barking up the wrong tree entirely? Any help
> would be appreciated
>
> Robbie Harrison
> '68 2000
>
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