Designing an Engine Oil Temperature Display Gauge Project

[GoldOxide_imp]

Thanks in advance, Alain! (Lookup table, or even approximating with an n-level polynomial would not be a problem). Voltage measurement impedance on “my end” has the magnitude of megaohms - should not be a problem. The pullup worried me not for it’s existence, but for the particular word used. A bit of a layman’s term within a technical document - made me cautious about the credibility of the entire doc.

GoldOxide: was that steam bubbles forming in clutch liquid, or flex pipes softening up from the heat? Sounds rather ugly, being stranded for half an hour

Yes, I'm curious about the reason you lost the clutch because of the clutch fluid overheating?
Maybe stainless braided lines could improve matters?
A good job it wasn't the brakes...
Mind you, that will never be a situation that occurs here in England, UK!!

Yes, I'm curious about the reason you lost the clutch because of the clutch fluid overheating?
Maybe stainless braided lines could improve matters?
A good job it wasn't the brakes...
Mind you, that will never be a situation that occurs here in England, UK!!
This was on a CB750SC. The clutch line was not braided and I seem to recall the line going to the crankcase, which was immensely hot. I couldn't determine in-the-moment if bubbles were forming, but that would not surprise me if it did. I did not see any "steam-like" gases anywhere. The net-net was lever pressure was like "98%" lost and clutch plate action was immediate and no modulation control was possible. At the time I thought I blew the line from the heat.

I expect today's CB1100 would not have that problem, but I have not been in that situation with an air-cooled engine for quite some time either.

I have been stuck in mid-summer traffic on the CB11 a few times at temps exceeding 115F (46C). Never had an issue with the clutch, although I was beginning to get worried about the engine oil temp.

I've found that overheating on an air cooled bike (my CB11 or CB750) isn't really a problem unless you're stuck motionless and idling in temps above 100F for half an hour or so. Even moving slowly (i.e 10 - 20 mph) provides enough airflow to cool the bike adequately.

I have been stuck in mid-summer traffic on the CB11 a few times at temps exceeding 115F (46C). Never had an issue with the clutch, although I was beginning to get worried about the engine oil temp.

I've found that overheating on an air cooled bike (my CB11 or CB750) isn't really a problem unless you're stuck motionless and idling in temps above 100F for half an hour or so. Even moving slowly (i.e 10 - 20 mph) provides enough airflow to cool the bike adequately.
The situation I experienced was a total trap:

* Parked on freeway.
* Off-ramps funneled to residential side roads parked.
* No natural air current.
* Super high summer humidity .
* Hot summer day.
* Moved only 100 feet in 30 minutes.

Had to take to the sidewalk to bypass the situation. Ironically, a police car came out of a residential laneway and cut me off - rightfully so. However, they didn't care. They were more concerned about the vehicular traffic situation as nothing moved on the asphalt. An officer got out of the car and asked me to push the bike, not ride it. Then they went to evaluate the traffic situation. Nobody was moving except pedestrians.