new spring type self- tightening fuel hose clamp

[randywebb]

- found this -- can anyone comment on it?

1985 Vanagon through
1991 Vanagon Built from 1985 Jul to 1992 Jun
Campaign 92V058001 No. Recalled: 340,000
Campaign SF Notification Date:
System: Fuel Lines.
Vehicle Description: Passenger Cars.
Description of Defect: The fuel hose attached to the fuel
distribution rail on the engine may shrink
beyond the clamp force of the fuel hose
clamps, allowing fuel to leak.
Consequence of Defect: Fuel leakage in the engine compartment can
cause an underhood fire if the fuel comes
in contact with a source of ignition.
Corrective Action: Replace the fuel hose attached to the fuel
rail and install a new spring type self-
tightening clamp.
NOTE: Volkswagen of America estimates the
new self-tightening fuel hose clamps will be
available in May of 1992.
Supplement 92V058001 Information has been added to this campaign.

[Wildthings]

I in general like spring loaded clamps as they don't cut the hoses up as bad since they don't need to be as tight all the time. Don't know which ones VW is talking about here. Never heard of much of a problem with the rounded edge FI clamps that came on many of these vehicles. VW did use several different style clamps over the years, often two or more styles on the same vehicle, some were surely better than others.

[syncroserge]

[tencentlife]

You can find a small assortment of the spring clamps in small fuel hose size at the FLAPS to check them out. The package has a few different sizes so if you wanted to redo all the hose conections you'd have to buy several packages or hunt down the particular size you need. Here is one vendor who offers them individually:

http://www.nutsandbolts.com/spring-action-hose-clamps-c-30_57_89.html

That said, the smaller sizes are made of much thinner metal than the water hose ones and don't have nearly the clamping force. I'm a big fan of these for the water hoses but in these small sizes the force they exert may be inadequate for the pressures in the FI system. YMMV.

The problem of hose shrinkage is very real, especially in the first year or so after installing fresh hose. The screw-type clamps, either OEM pinch-type or aftermarket screw-band clamps, should be checked and tension added as needed at least yearly to allow for the rubber shrinking. At least that's been my experience.
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[deprivation]

[Wildthings]

One of the problems with spring clamps is that they have a very narrow range of hose they will properly fit. I grab spring clamps whenever I see one laying loose in a wrecking yard, so I have quite the collection of quality OEM clamps in many sizes. I also keep the extra clamps when I install an inline filter.

[r39o]

I use Mercedes clamps. I think some of the vendors also (re) sell these. You can buy them through the usual wholesale parts vendors they all buy from. You will have to go look, I do not have any handy to take pictures of.

These are not spring loaded or whatever, just good clamps with raised edges and do not bite the hoses but provide a wide area to clamp with.

Been using these for decades. They were / are fine on my wbx when I replaced my fuel lines and had my injectors serviced.
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