[Healeys] Occasional loss of power under acceleration.

[Alan Seigrist]

Maurice -

Do you have a fuel filter installed in your car?  If it is clogged up
it will cause these exact symptoms.  Sounds like you may need a new
fuel filter.

The other potential problem is you may have a partially clogged float
chamber jet that is blocking fuel flow some of the time - take the
chamber tops off, clean them thoroughly and replace the jets if you
have a spare set.  If you have grose jets installed they are very
sensitive to dirt and rust in the fuel.

Either way, the symptoms you describe are almost cerainly fuel
related.  An easy diagnostic is to detach the fuel line that goes to
your carbs and turn on the ignition.  You should have an immediate
steady flow of fuel out.  If you get a trickle, then something is not
right in the fuel system somwhere before the carbs.

A final thought is if you coated the inside of your fuel tank recently
with a sealer, the sealer can break loose and block fuel flow out of
the tank.  Common problem.

Alan


On 6/18/08, Maurice Maxwell <maxandreb1 at yahoo.com> wrote:
> I have experienced a new problem.  I attended the Gold
> Cup Races at VIR two weekends ago and as part of the
> car show event we got to take laps around the 1.1 mile
> Patriot Course.  The first few laps went well the
> engine reved smoothly to 4000 rpm in 3rd followed by a
> shift to OD.  Then on the 4th lap I depressed the
> accelerator pedal and the engine sputtered (no
> backfire, more like no fire or no fuel).  Drove the
> car back to the show field the engine ran smoothly.
> On my to the motel, I got the same problem if the
> accelerator pedal was depressed beyond a certain point
> of if the engine rpm was above 3000 rpm.  Again the
> same the next day driving back to the track.  The car
> sat in the shade all day and the ambient temperature
> was about 100 degrees.  After the races, I left for
> home, about 100 miles.  The car ran just fine.  Good
> power under full acceleration up to 4000 rpm in any
> gear even 4th OD.  It was still hot on the return
> trip, but not as hot as it was during the laps and the
> trip to the motel the previous day.
>
> Several days later, I took the car out and it ran
> fine.  Visited with some friends, left their house
> about 10 PM drove about 20 miles and the problem
> returned.  Turned the engine off for about 1 min,
> restarted it, drove several miles, and it struck
> again/
>
> What are the possible causes of my dilemma  All help
> appreciated.
>
> Max
> 1961 BT7
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
>
> Healeys at autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> You are subscribed as healey.nut at gmail.com
>
> http://www.team.net/archive
>


-- 
Alan

'52 A90
'53 BN1
'64 BJ8