Below are 2 pix of a broken and/or burnt part.......in hand, and also showing the "location" that I discovered it!! What is it and what the Hell is it's pupose? Vehicle is a 1987 Testarossa......Right hand side of engine bay when looking in from the rear. behind water radiator and oil cooler.... Thanks for the info in advance!! Wondering Me Dig the un-callous and sanitary hands of this affluent Ferrari owner!! Image Unavailable, Please Login Image Unavailable, Please Login
It's the plastic half of the 123227 thermoswitch for the oil fan motors -- the brass half is still screwed into the side of your oil radiator: Image Unavailable, Please Login item 39 here: http://www.ricambiamerica.com/parts_catalogs.php?V=diag&I=2785
Mr. Steve comes thru again!! Now the $264 question....... Is this part "specific" to the Testarossa and/or Ferrari? I ask because of the typical outlandish Ferrari pricing!! Any suggestions, specs of the switch or manufacturers data? Bargain hunter Me
No, I don't know of a generic substitute, but I noticed that the euro suppliers are about 1/2 the price for 123277 (if the customs and shipping fees don't get crazy). It is a part that might survive a crash that the oil radiator didn't -- so used from a wrecker might be an option...
so as this switch looks like I would say for soldering or other fixing: NO but you may go to a radiator shop and look for a thermoswitch with the same thread. here I got one for not even 35 euro plus shipping. you may also look at a tractor garage. those engines if air cooled also have such switches. I once needed such switch because 1 contact was broken. so I tested the original switch directly in oil and got the following: switch closes at 102 °C, so the fans are running switch opens at 93 ° C, fans will stop if those measurments on my used switch are the same as from a new one I can not say because of the typical horrorprice from ferrari I never had an original new one here. but if you could find a switch to close between 95 and 110 °C and will open again between 80 and 100° C it would be ok. I put in now a switch with 108/96, so the oil temperature is at the oilcooler inlet side 119 °C when the fan starts. the problem is that this switch is not directly in the oil so it will never get the temperature of the oil.
So a switch that closes at 215* F and opens at 199* F will do the trick? Thanks everyone for your insight and shared info!! Looking for a switch Me
if I remember right the thread is M 14 x 1.5 - but not sure if anyone likes to know excatly please ask and I will have a look into my records this weekend
I am quite sure there will be used switches like that at autobrokers yards ... try Fiat, VW, Merc and BMW parts ... and only for a few $$ ... get one and try (measure) ... These guys can tell you a lot ...
I had a look at my records and found: the thread of this thermo-switch is M 14 x 1,5 the problem is that for example AFAIK no fiat, no mercedes and no bmw has such a switch. mostly those switches are directly in the radiator and the thread is M 18 x 1,5 you could make an adapter, but then you need a switch with much lower on-off than the original if you can not find such a switch I could send you one from here. have meanwhile about 6 of those in stock with different on-off sizes. only thing is that the connectors comes out straight and not as the original in 90 °, but that does not matter because there is enough space
Can you please show us a photo of the complete switch please ? Any numbers in them, or manufactory name ?
when I will go to my storage room for not every day use parts ( about 30 km away ) I will take a picture and post it here. but I think there is no manufacture on? but not sure. also no package to know the manufacturer. as you all know I have a small garage here. but I never have seen such a switch with M 14 x 1.5 before. so I think that this thread is in no car except ferrari??? my special man for repairing radiators ( he is an italian ) organized me those switches.
here is now 1 picture of this "after market" switch. it is only standing on it: italy 2 A 107° 97° 5141 but no manufacturer as I have written I have with this 107° and 97° 3 in stock, and one with 108°/96°. the other 2 I thaught to have can not find just now. Image Unavailable, Please Login
STOP MEL: problem ! ! ! I never tried or tested this switch until now. so I wanted to check it and have seen: this thermoswitch is an "opening switch", so as long as the temperature is under those 107° this switch is closed, and will open at those 107° and close again at 97°. so working exactly otherwise as we need it for the oilradiator fan. I already called my radiator man about this and he will check again. he also wonder about this. as soon as I know more I will post it here
if the oil gets at 107 degrees C it will set - off - the fan too cool it no MEL: at 107° it should get "ON" - not off - so the fan may run and cool. we want the fan to run when the temperature is 107° and to shut off again when the oil is 97° with this "to open" switch now the fan will run always up to 107°, when the oil is getting warmer the fan will stop bec the switch opens the inside connection. and only if the temperature is below 97° the fan will run again. this is not what we want. or of course not what I want normaly such a thermo switch is a "closing switch". so when it will reach the higher temperature it will close and the fan will run. and when the temperature is reaching the lower temperature it will opens and the fan stops. that there are also "opening switches" until now I never had known. so every day we learn some new.
