dumb questions #32, 33, 34

[Huw Powell]

> OK so even though it felt like 90 degrees out when I got home, I changed
> the oil and filter (I figured hot was good) in preparation for an upcoming
> time trial. I'm running Mobil1 15w-50 synthetic. Am I the only person who
> has the impression that when the weather is hot, the engine doesn't run
> quite right when it first starts up?

Yes?  Maybe?  My 90Q seems to like the heat just fine.  if your lifters
are leaking down, though, the valves aren't opening properly and that
might matter - but you will hear the nasty ticking...

> It always sounds like it's down on
> oil for the first couple of minutes in hot weather, and I get the "tappet
> noise".  

well there you go.  Now... there is a *different* oil filter called out
for the NG engine, same one that some of the turbo engines use - but I
know at least some parts stores will simply sell you the one that goes
on most I5's.  They do look different inside, but I have not cut one of
each open yet to see how or why... this might matter.  You are using
good German filters? I'm sure you are... they have the anti-drainback
valve to keep the oil in the lifters.

> It also seems like the area around my
> injectors has started whistling or sucking... it's hard to describe, but I
> don't recall the engine sounding that 'airy' before. This is a normal '88
> 80Q.

as pointed out, new injector seals ought to help.  they dry out.  but
try to find any other leakies first in case there is something else.

> 
> The questions get dumber and dumber: I'm starting to remove things to get
> rid of weight.

inner door panels, glove box, trunk liner, massive hunks of iron used in
the PROCONTEN system (bolted to floor boards and transmission), all AC
parts of course and then maybe the aux radiator, brake vacuum pump, move
battery to trunk, sunroof & motor!, all speakers and radio, power window
regs though manuals may be tough to find, power lock pump & widgets, ABS
unit if it is at all flaky.

> I think I'll leave the passenger seat, though. Gotta have some place for
> my doggie to sit.

take it out and throw in a lightweight doggie basket mattress pad.

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/