[Public-List] A4 Engine puzzler

[Gordon Laco]

The filler cap was new with the tank, but I'll check it.


On 18/08/13 2:35 PM, "Chris Martin" <notcmartin at yahoo.com> wrote:

> Good advice to check the lines and any fitting for corrosion or blockage. Also
> a good idea to drain and check the tank, especially the bottom if you can.
> Also check the bad tank for a blocked vent. If the tanks are the same switch
> filler caps from good to bad, that assumes the cap is a vent. 
> 
> Good luck
> 
> 
> ________________________________
>  From: Gordon Laco <mainstay at csolve.net>
> To: Alberg 30 Public List -- open to all <public-list at lists.alberg30.org>
> Sent: Sunday, August 18, 2013 1:28 PM
> Subject: [Public-List] A4 Engine puzzler
>  
> 
> Hi Gang,
> 
> I hope you¹re all out sailing.... I stole Friday afternoon and yesterday to
> do a quick overnighter up the coast.  Had a wonderful trip.
> 
> This afternoon I¹ve been making a determined assault on the annoying issue
> SURPRISE¹s engine has;  namely it¹s dislike of running while the fuel
> selector is set to Tank 2.
> 
> It runs fine on Tank 1, but when the selector is set to 2 it runs for only a
> few minutes then cuts out and won¹t restart.   When I put the selector back
> to Tank 1, it starts again after a lot of cranking...but at first only with
> the choke on (it gets over that quickly).
> 
> When it stalls while running on tank 2, here¹s fuel in the fuel filter, so I
> think it¹s getting gas.   If the carb were getting blocked, it wouldn¹t
> start again on either tank without a carb cleaning job, but it doesn¹t need
> that.
> 
> When the problem first manifested, it was stalling on either tank, but after
> I¹d followed Don Moyer¹s advice and retightened all fuel line hose clamps,
> the problem was resolved with regard to 1, but the issue still exists with
> 2.
> 
> It¹s occurred to me that there could be water in the fuel in 2; so I¹ve been
> putting fuel line antifreeze in to absorb it.... But it occurs to me that if
> contaminated fuel were the issue, I¹d have to clean the carb before it would
> run again and so long as I switch to 2 that doesn¹t happen.
> 
> The weird thing is it ran quite happily on either for many years before this
> started happening last season.
> 
> Does anyone have any suggestions?
> 
> Gord #426 Surprise
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