[Rovernet] P5 problem persists

peter king peter at king-co.com
Sun May 24 16:14:10 EDT 2015


Will check for spark again… just ran it till it got roughl and checked temp across the block at the point the plugs enter: 178, 196, 197, 204, 202, 198. coolant as it enters radiator 175, exits at 165. My fuel pressure gauge not working properly, and surprise! Auto parts stores aren’t carrying them for carburetor systems anymore. Will borrow one from my mechanic friend.

Thanks, all. The saga continues another time.

Peter





> On May 24, 2015, at 2:49 PM, Tom Rymes via Rovernet <rovernet at rovernet.org> wrote:
> 
> On 05/24/2015 2:36 PM, peter king via Rovernet wrote:
>> Back home, barely. Another 7 minutes of great running then sputtered into the garage.
>> 
>> No vacuum buildup in the tank, breather lines all clear.
>> 
>> Original mechanical pump delivering fuel to the bulb. New hotspark electronic igintion, new rotor, plugs. Wires relatively new. dis. cap is good. coil is newz 3.0 resistance.  8 gallons of new premium fuel in the tank—just over half full.
>> 
>> I need to did through my points/condensers to see if I have the right ones.
>> 
>> What about localized overheating vaporizing gas after the engine gets hot? How can I rule that out?
> 
> Peter: As I mentioned earlier, you first need to narrow this down. All problems like this come down to fuel, air, or fire (spark), and air seems unlikely.
> 
> Checking for spark when it dies is the quickest and easiest thing to start with. Then, if you have no spark, start working through the ignition system. If you DO have spark, then start working your way through the fueling system.
> 
> Tom
> 
> PS: Vapor lock while running (as opposed to after being parked for a while) seems highly unlikely. If you hear hooves, look for horses, not zebras.
> 
> PPS: More likely would be a sticking needle valve in the fuel bowl (or Grose Jet if so equipped).
> 
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Peter King
Peter King + Company
21 Drydock Avenue
Floor 7
Boston, MA 02210
617-292-7877
www.king-co.com







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