[Healeys] OT: Old Ford tractor acting spastic

[Harold Manifold]

Does it have a glass bottom fuel filter at the engine? If the tractor has
been sitting debris from the gas tank settles in the bottom of the engine
filter and gets sucked up as the engine is running and the engine starves.
Easy to clean and service as all things were in the early 50's.



-----Original Message-----
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bob
Spidell
Sent: Saturday, June 08, 2019 7:51 AM
To: healeys at autox.team.net
Subject: Re: [Healeys] OT: Old Ford tractor acting spastic

Thanks, Kees.   It does seem like a fuel starvation issue.  Plug wires are
new and appear to be good quality.

Bob

On 6/8/2019 12:18 AM, Kees Oudesluijs wrote:
> Dirty fuel causing blocked fuel filter if fitted, Fuel cap not venting 
> causing a vacuum in the tank (my best bet), bad condensor (even new 
> ones can be crap), plug leads.
>
> Kees Oudesluijs
>
>
>
> Op 8-6-2019 om 08:46 schreef Bob Spidell:
>> Not Healey-related--although I've heard Healey engines described as 
>> tractor-like--question for the List wisdom.  I have an old Ford 
>> tractor, model 851 manufactured in the early '50s, with a 4-cyl 
>> engine.   Compression is good--145+/- on all four--and I've replaced 
>> points, condensor, distributor cap and plug wires and rebuilt the 
>> butt-simple Marvel Schebler carburettor (plugs were OK).  After the 
>> work, the tractor started quickly--after I fixed the 180deg-out 
>> distributor cap--and ran good for 15-20 minutes with a load from a 
>> scraper.  Then, it starts backfiring, tries to stall and struggle for 
>> a few seconds  then, if it doesn't die it seems to recover for 
>> another 15minutes and then the show starts again. The coil had some 
>> corrosion in it so I replaced it, with no change.  This tractor ran 
>> consistently but very poorly under load before my work.
>>
>> Only thing I can think of is the carb float sticking but it was an 
>> easy rebuild and I recently rebuilt another with no issues. Any ideas?
>>
>> Bob
>>
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