[T3] (no subject)

[Jim Adney]

On 26 Jun 2013 at 17:52, Gary Forsmo wrote:

> I took my '69 for a short run on Monday.
> After about 12 miles (some in-town and some 55 mph) at 45 mph, flat
> level road, I experienced some "stumbling ... stuttering" too.
> I remembered your:
> "try my trick of getting it up to speed then taking your foot
> off the throttle for a few seconds?"
> 
> Jim, I did that "trick" in 4th gear and also in 3rd.  Nothing changed.
>  Still stuttered.

That trick is only for a cold engine on first startup, where one 
cylinder has flooded and needs to be "flushed out" before it will 
fire. I've used it for years, once I discovered that it cured the 
problem in one block, as opposed to normal driving for several miles.

> After it sat for an hour or so, on the return trip to the RV Park, it
> ran well again.
> Hmmmmm?
> 
> Pintel in one injector not spraying correctly?
> Injector "valve" not shutting off correctly?
> Fuel octane?  I try to burn a Kwik-Trip, all-gasoline, 91 octane.

Any of those, or a bit of dirt in the FI trigger points, or a few 
drops of water in the gas. With all the rain we've had, a bit of 
water could have gotten blown in past a worn gas cap seal.  

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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