My MK IV factory parts book shows the following part numbers for the lower
valve collars:
105118 for engines up to FH25000E, FL25000E, etc.
105118 for engines FK25001UE and future
157510 for engines FK25001E and future
I ordered 10 of part 105118 from TRF for about 59 cents each. My engine
(FK26193UE) had
identical-looking collars. They are stamped sheet metal, sort of like a little
upside-down
soup bowl with a big hole in the middle.
The raised portion fits inside the outer spring and positions it. The inner
spring rests
upon the raised portion. The inner spring's ID is just a bit bigger than the
valve guide,
so the guide positions it. BTW, the parts book clearly shows part 105118 being
used
with both single springs (on the older engines) and dual springs (on the newer
engines).
Feel free to forward this info to TRF.
Also, my 1990 edition TRF catalog shows part 105118 being used for 1500 engines,
with single springs. The spring in question is part 157229, which is also the
outer
spring for the later MK IV 1300 UE-series engines.
Doug Braun
'72 Spit
At 11:28 AM 6/10/2003 -0700, Henry Stike wrote:
>Just got off the phone with the roadster factory and
>they do not have collars for dual springs, part 105118
>is for single spring setup. They don't have a dual
>system for sale even though it is listed in cat. Man
>said it was a misprint.
>
>In Victoria Brittish cat, they now list the dual
>spring collar for $4.95. A year ago they did not have
>any. I don't know, but was told you can damage head
>and camshaft without the propper collar to hold the
>dual springs. I guess they have a second base groove
>in them to seat the inner valve spring.
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