You would have been very happy with the most famous VAG car of all time.... the VW Beetle which had a fail open thermostat which consisted of a vacuum filled corrugated copper cannister, the cooling flaps on the air cooled engine were spring loaded to be open fully, the thermostat was attached by a anchored linkage to these flaps and in its cold state was constricted to its smallest height and pulled on and kept the flaps closed, As the air flow over the cylinder heads/cylinders and thermostat heated up, the thermostat started expanding allowing the flaps to open progressively and allow more cooling air to flow. The thermostat could only fail one way and that was if it was punctured, in which case it lost its vacuum and became fully extended leading to overcooling but certainly never leading to overheating on failure.

I vaguely remember one British car (a Riley??) which even though water cooled had I think a similar design in their thermostat in that it was corrugated and vacuum filled as well.

Well..the ''bad karma'' continues to my Felicia in the cooling system (which i have said in the past caused me the majority of problems)

I was in a manoeuvrer to park my Trusty and i saw smoke coming out of the hood, i said to my self ''Not again..." and when i open it i saw that mess:

 

I am ''sick and tired'' with this adaptor, i don't know why the clamp hose got loose and the whole engine bay get full of coolant (plus a bad smell) but ''this is the End''

i removed that adaptor permanently, i made a proper connection in the hoses, refill with new coolant, clean the whole engine and i don't wanna hear again for an adaptor before the thermostat switch.

 

I think nobody knows what adapter you are talking about because it doesn't look factory made.

this is the temperature probe adaptor right?
the clamp keeps coming of because there is not enough of a flair at the end of it plus its surface looks very slippery,
in these cases i just use double clamps, also that means that your cooling system gets pressurised so i would advise checking expansion tank's cap for stuck release valve

On 25/04/2020 at 22:23, RicardoM said:

I think nobody knows what adapter you are talking about because it doesn't look factory made.

 

Many things on my Felicia are not from the Skoda factory.

You know about this adapter, you have answered below this post:

 

 

 

Thefeliciahacker :  My Patrida unfortunately the end of the majority of 26mm adaptors have that problem so no matter how you tighten the clamp it's a matter of time to get loose under pressure.

If you use force the ''walls'' will get bend because are very thin.

Check the far left adaptor, watch the end have not enough ''rim'' as the others

 

 

Maybe using double clamps could be solution but even that there is no insurance

this happened while i was in a parking, imagine what could happen if that occur in the National Road.

That ''modification'' is over for me, i don't think that worth the risk.

 

 

1 hour ago, D.FYLAKTOS said:

You know about this adapter, you have answered below this post:

No, I didn't answer to anything related about that adapter. Anyway you can't see in that photo too much because it is too small and too dark in the shadow.

7 hours ago, RicardoM said:

No, I didn't answer to anything related about that adapter. Anyway you can't see in that photo too much because it is too small and too dark in the shadow.

 

Now you know (plus anyone that will read it on Search) that some of these adaptors have an ''issue''

i couldn't know it but now someone can learn from my mistake, if that accident happened on NR with high speed the results could be catastrophic.

The sensor has 1/8 NPT bolt and definitely needs some Teflon tape before applying.

 

You can get an idea for the mess,the smoke initially was more like someone throw a smoke grenade inside the engine bay.