[Rovernet] p5 rough running after warm up

Steve Manwell s_manwell at alum.swarthmore.edu
Mon May 11 06:26:26 EDT 2015


Peter,

It might be worth trying the original coil and original points and 
condenser to rule out the new coil and new electronic ignition.  A 
timing light would show whether the distributor advance (base plate, 
springs, vacuum advance) is working.  A Mighty Vac or similar hand 
vacuum pump could be used to test the vacuum advance diaphragm.  I'm not 
sure if a failed diaphragm would ever show up as a temperature related 
problem.

Or maybe it is more of a time-related problem, ie. 20 minutes of running 
time?  This could be something like crud in the fuel tank gradually 
collecting on the pickup tube screen, or filter, or ???, then falling 
back when the engine stops.  Does it restart easily and run ok for 
awhile or still have the same problem when restarted hot?

steve


On 5/10/2015 10:16 PM, Peter King via Rovernet wrote:
> Here Jess,
> I've just replaced my coll and installed a new Hotspark electronic ignition.  Runs great on cold start, then starts to sputter, occasionally backfire and ultimately conk out once it's warmed up. Approx. 20 minutes.
>
> Sent from my iPhone
>
>> On May 10, 2015, at 9:26 PM, Jess Rainey via Rovernet <rovernet at rovernet.org> wrote:
>>
>> Sorry. I guess that was for Peter, not Steve.
>>
>> Sent from my iPhone
>>
>>> On May 10, 2015, at 6:15 PM, Steve Manwell via Rovernet <rovernet at rovernet.org> wrote:
>>>
>>> Coil getting hot or condenser breaking down?  (Not sure if you have a condenser with current ignition setup.)
>>>
>>> Does the fuel pump pump a good flow of fuel?
>>>
>>>
>>>
>>>> On 5/10/2015 7:32 PM, peter king via Rovernet wrote:
>>>> H all,
>>>>
>>>> I have the P5 back in action after a season down. All goes well for the first 10 minutes or so of driving. Starts up fine. drives without hesitation.After driving for 10 or so minutes,things start to get progressively worse. First, stuttering on hard acceleration, then stuttering at any acceleration. idle is fine all the while. After about 20 minutes, I can hardly move forward without stalling. I cleaned the carburetor earlier on, hoping that might help. But the problem is still occurring after warm up.
>>>>
>>>> Any thoughts?
>>>>
>>>> thanks,
>>>>
>>>> Peter
>>>>
>>>>
>>>>
>>>>
>>>>> On May 7, 2015, at 8:02 PM, Kent Kinard via Rovernet <rovernet at rovernet.org> wrote:
>>>>>
>>>>> Hi Ben,
>>>>> Yes, he is.  He's on the road right now but should respond as soon as he checks his email.  We were just talking yesterday about his continuing search for a P3.  He just bought a Princess 4Litre R, so I may have to relieve him of that so he has enough cash :-)  I owe him a favor or three.
>>>>> Roverly,
>>>>> Kent K.
>>>>>
>>>>> Ben Saunders via Rovernet wrote:
>>>>>> Greg,
>>>>>> Are you still looking for a Rover P3?
>>>>>> Ben Saunders
>>>>>> bsaunders at firstva.com
>>>>>>
>>>>>>> On 02/12/2015 12:24 PM, Greg Gendall via Rovernet wrote:
>>>>>>> I am looking for a P-3 in almost any type of restorable condition or leads toward one.   Sure would appreciate any leads.
>>>>>>> Thanks
>>>>>>>
>>>>>>> Greg Gendall
>>>>>>> Sent from my iPad
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>>>>
>>>> Peter King + Company
>>>> 21 Drydock Avenue
>>>> Floor 7
>>>> Boston, MA 02210
>>>> 617-292-7877 x302
>>>> www.king-co.com <http://www.king-co.com/>
>>>> www.facebook.com/pkingco <http://www.facebook.com/pkingco>
>>>>
>>>>
>>>>
>>>>
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