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On 25 May 2005 at 23:01, Elroyyy@aol.com wrote:
> << 1) How's your overflow hose at the gas filler pipe? They are often cracked
> and that will let water into the tank, which will lead to all kinds of
> problems.
>
> It has a 90 degree angle where it connects to the main filler tube, right?
> This hose is cracked and brittle under the fender. I'll be replacing it ASAP.
> Can anyone tell me what diameter this hose is? Or if it's a (heavens forbid) T3
> only part.
It is a type 3 only part. On your ('73?) the part you're looking for is a 311
201 179C. It is NLA from VW and hard to find anywhere. You can make up a
replacement from anything that will fit. I think the ID would be something
around 3/8-7/16".
> A friend of mine suggested that I should make sure that all of my FI
> components are compatible. It was his understanding that a "B" ECU should have a "B"
> pressure sensor, a "C" ECU should have a "C" PS, etc (with some exceptions).
> And if they're mismatched, the VOM test may show that the PS works, but the ECU
> has other ideas.
>
> I checked and, sure enough, I have a "D" ECU and an "E" pressure sensor. Are
> these guys compatible? Could this be causing my problem?
Yes, I believe it's important to get your parts matched. There are certainly
things that you can get away with, but once you start down that road
troubleshooting becomes very iffy. There's not a 1:1 match between the suffix
letters, but there are certainly correct and incorrect matchups.
For example, both the A and B brains use the same B PS. Beyond that I have to
be home to refer to my books.
A '73 should have an E brain and an E PS. There were 2 different E brains, and
you should try to find the later one. (The earlier one was used in '72 with a
different distributor.) I can send you the 10 digit Bosch number tonight. If
you need parts, I probably have them.
The E PS should have a black plastic cap on one end. If it is missing then it
has probably been tampered with, and that could also be part of your problem.
Is the cap there?
A '73 should also have a throttle valve switch with 5 pins on it. Does yours
have 5 pins?
You should also have a distributor with vacuum advance but no vacuum retard.
--
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA
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