[T3] Fuel Troubles

Jim Adney jadney at vwtype3.org
Tue Apr 26 06:54:16 PDT 2011


On 25 Apr 2011 at 22:16, Special (K) wrote:

> Someone when I was attending to another issue on my square saw a hole ?? in
> the rubber tube that runs from my vacumn advance to my drivers side
> carburator they replaced it for me( another fellow vw friendly owner). 

That's an important thing to keep intact. In later years, the vac advance just 
helps with gas mileage; in earlier years it's essential for a good power curve. 
You didn't say what year or distributor this was, so I don't know which system 
you have.

> I was having other fuel issues my pump was leaking badly and I wanted to
> replace the leaking pump. In my trunk I had a seemingly new fuel pump that
> was for a vw someone had given me( incorrect fuel pump one for an alternator
> VW) I did not know at the time that it wasnt right, it was hecka windy and
> since I have a full length roof rack, during gusts it would (?? Surge??) I
> just wanted to get home.. I have since replaced this pump with the correct
> brosol model. Does anyone know if the leaking pump can be repaired? It leaked
> at the seam.

There are small differences in the delivery pressure for Type 3 and beetle 
pumps. Most people seem to think that these differences are important, but I've 
never been able to understand how that might be possible.

> Somethings have come to light that I need the forums help on. 

> 1.I have no fuel pump ?Sleeve?? The bakelite insulator is this normal?? My
> 1966 also does not have one. I have put 1000 miles on this car since I have
> owned it, and never had any problems with fuel. it seems like since the gas
> prices went up ,I changed a filter and then I discovered the leak and
> changed the pump the next day. 

I don't know how you could be missing the bakelite guide sleeve. Without that, 
the pump pushrod would fall down into the engine and get lost. Getting it out 
might require a complete teardown of the engine. If the bottom end of the guide 
tube has broken off it might work for awhile, but you're living dangerously. I 
think I have at least one of those parts here if you need one, but they should 
be available almost anywhere that works on old VWs. Beetles used the exact same 
part.

> 2. I do not know the correct diameter hose to ask for at the parts store. 

I'm not sure either. For the early carbed cars I THINK it was 5 mm. The exact 
size is not important, as long as it fits snugly. You could take your old pump 
with you so you could try different sizes.

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




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