Well, my new '75 TR6 (no printable name yet) and I are begining to get
along a little better. Since it died on the highway 20 min after being
purchased, the relationship had nowhere to go but up. I have a few
problems that I'll be working on this weekend, and I thought I'd try to get
some net-wisdom(tm) before putting in my weeks' TRF order. I've owned many
LBCs before, but never a TR6.
1. Start off from idle. When I do this, the car sometimes coughs and
sounds like its starving for fuel. It also often backfires through a carb.
It's fine once we get rolling. If I am extremely gentle, I can avoid this
behavior completely. It seems to idle reasonably well, and seems to run
well otherwise.
2. Deaccelleration. Going down a hill, if I let off the throttle
completely, the car makes a "piter-pitter-pitter" misfiring sound until I
get back on the gas a bit. The carbs have springs and full dashpots; my
understanding of ZSs (I'm generally an SU guy) are that those are the
obvious things to check here. I have heard of mysterious things called
bypass valves which can "float"...
3. Oil Pressure. When cold, the oil pressure seems fine, and is in the
recommended 40-60psi@2K rpm range (55psi). When hot, however, it drops
closer to 25psi@2K rpm. I'm using Castrol Syntec 20w50.
4. Oil consumption. The car is using perhaps a quart every 250 miles (No
more Syntec!). No big leaks, no puffs on shifts, no dramatic blue plumes
behind me. I pulled the plugs, and two (#4 & #6) seems to have oil
deposits, although not the heavy wet ones depicted in the Hayes manuals,
but are rather dry and "caked-on" looking. The car was essentially unused
for three year following a major restoration, so stuck rings are a
possibility.
Thanks for any ideas or advice, and if you would please cc my email address
in replies, I would appreciate it.
mike.
|