root@osprey.ca.boeing.com (Neil.Williams.(206)957-5329) writes:
>I Have a 71 TR6 w/ od. When I went for California vehicle inspection for
>smog check I was told by the state of California this car came stock with a
>timing vacuum retard, which mine didn't have on it so I was required to
>aquire and install the module.
>From what I can gather from TRF's TR6 catalog, most of the 1971 6's should
have both the vacuum retard and vacuum advance units on the distributor,
but POSSIBLY NOT ALL OF THEM. The retard/advance systems were apparently
fitted from engine numbers CC50000 to "approx." CC58298. But notice that
the 1971 numbers evidently went beyond CC58298. The 1972 numbers started
with CC75001, so if your number is between these two, it might have the
1972 vacuum setup.
Here's a related question: Starting with the 1972 systems, I notice that
only a vacuum retard fitting is listed, but no advance -- is this correct,
a vacuum retard but no advance? I would have thought that it would be the
other way around. Hmm, on further thought I guess the emissions concerns
may have outweighed the performance concerns.
Lee M. Daniels - Laboratory for Molecular Structure and Bonding - Texas A&M
daniels@lmsbvx.tamu.edu | DANIELS@TAMLMSB.BITNET | (409) 845-3726
|