[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
On 22 Aug 2003 at 9:04, Russ wolfe wrote: > On Thu, 2003-08-21 at 19:34, Jim Adney wrote: > > On 20 Aug 2003 at 21:10, Jim Adney wrote: > > I was ready to defer to Russ on this, because I really just never had much > > experience with any single port type 3 engines, but I paused long enough to > > actually look these up in the microfilm. Turns out we were both wrong; there > > are actually 4 different versions of this cover plate: > > > > early single port, up to about engine #60,000 > > late single port > > dual port carb > > dual port FI > > > > I suspect that only the bottom three will interchange on the same late cooling > > tin. > > > > I'll assume that Russ is right about the type 1s and that there were no such > > plates on those engines. > > > Hmmmm, My '66 T-3 does not have the seperate piece of tin over the spark > plug holes. It is one solid upper cylinder cover tin. When I tore my > engine down, there were signs and definate indications that the engine > was a virgin, and had never been apart before. I looked closer at the microfilm, and I see that the single port engines up to 60,000 carried us thru 66, so those early engines probably all came with one piece cylinder covers like the ones on your 66. The SP cover plates shown for early single port engines must be for replacement use if the upper cyl covers also get replaced, although this is not at all clear from the microfilm. Since the US didn't import any single port engines after 66, you probably never saw any of the later ones. I know I never have, and if I did, I probably would never have noticed this detail. It makes sense that this separate plate would be introduced in 67, as that's when the DP heads came in and a different arrangement for the tin would have been required. At least this way the big tin could be the same for all the engines with only the small plates changing depending on the heads and manifolds. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org