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Old 3 Weeks Ago   #1
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Exclamation Alternative Thermostat Housing?

My Barchetta is running too hot, and I have eliminated all other possible causes. I want to remove the thermostat and replace the housing but without the thermostat innards. But is there a housing from another Fiat I can use so that I can avoid destroying my own thermostat workings?
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Old 3 Weeks Ago   #2
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Re: Alternative Thermostat Housing?

You say you have eliminated all other possible causes but don't say what you have actually checked. For example your water pump may not be pumping properly due to vanes being missing and/or eroded.

Regarding replacing the housing then you will need to identify your engine. 183A1000 (early B) or 188A6000 (late B).
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Old 2 Weeks Ago   #3
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Re: Alternative Thermostat Housing?

Hello S130 - vin number is ZFA18300000022436 so early. A radiator place did a diagnostic check and says the pump is ok. A radiator flush produced clear clean water, and the car doesn't ever have to be topped up. I replaced the thermostat about 6 years ago but now believe it is faulty. To be sure, I would like to remove it and keep it for later refitting if I don't get to the bottom of the issue. I have replaced the thermo-switch which activates the double fans but the new one activated the fans much too late - now I have a manual switch and watch the temperature like a hawk. Thank you for your reply!
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Old 2 Weeks Ago   #4
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Re: Alternative Thermostat Housing?

A new Gates one is less than 50 in the UK.

https://www.ebay.co.uk/itm/Gates-The.../311696012525?

Why not just change it and be done? If you can't get one locally maybe someone would forward it for you.

Not sure how a radiator "place" would check the flow rate of a Barchetta pump, seizure and leak check maybe.
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Old 2 Weeks Ago   #5
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Re: Alternative Thermostat Housing?

Many thermostats can function/last for 3 to 10 years plus. Others may fail far sooner. If your thermostat is in warranty period the claim and get a replacement. If out of warranty then just buy a new one and work from there.
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Old 2 Weeks Ago   #6
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Re: Alternative Thermostat Housing?

Can't you just place the thermostat in a pan and bring it up to temperature, just to see when it opens?
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Old 2 Weeks Ago   #7
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Re: Alternative Thermostat Housing?

For the 183A engine then the thermostat P/N is: 60586222 WATER PUMP

Also used in following vehicles: (so you can locate housing in a scrap yard)

FIAT - PK BARCHETTA (1995-2004)
FIAT - 1V BRAVA BZ/DS (1995-1998)
FIAT - 1M BRAVA G.98 BZ/DS (1998-2001)
FIAT - 1U BRAVO BZ/DS (1995-1998)
FIAT - 1L BRAVO G.98 BZ/DS (1998-2001)
FIAT - PC COUPE' (1994-1996)
FIAT - PX COUPE' GAMMA'96 (1996-2000)
FIAT - PT MAREA BENZINA (1996-1999)
FIAT - 1Q MAREA BZ GAMMA'99 (1999-2002)
FIAT - 1N PUNTO BZ (1999-2003)
ALFA ROMEO - U1 145 BZ/DS (1994-1996)
ALFA ROMEO - T5 145 GAMMA 97 (1997-1999)
ALFA ROMEO - W3 145 M.Y. '99 (1999-2000)
ALFA ROMEO - U2 146 BZ/DS (1995-1996)
ALFA ROMEO - T6 146 GAMMA 97 (1997-1999)
ALFA ROMEO - W4 146 M.Y. '99 (1999-2000)
ALFA ROMEO - W8 147 BZ/DS (2000-2010)
ALFA ROMEO - U5 155 ASPIRATO (1992-1996)
ALFA ROMEO - T3 155 GAMMA 96 BZ (1996-1997)
ALFA ROMEO - T7 156 BENZINA (1997-2002)
ALFA ROMEO - X1 156 M.Y.2002 BZ/DS (2001-2005)
ALFA ROMEO - X8 159 MY11 (2010-2011)
ALFA ROMEO - W9 166 BZ-DS (1998-2007)
ALFA ROMEO - X9 ALFA 159 (2008-2010)
ALFA ROMEO - 12 BRERA COUPE' M.Y. (2008-2010)
ALFA ROMEO - U8 G T V (1995-1998)
ALFA ROMEO - X7 GIULIETTA (2010-2013)
ALFA ROMEO - 5Y GIULIETTA M.Y. 2013 (2013 - ...)
ALFA ROMEO - X2 GT (2003-2010)
ALFA ROMEO - W0 GTV '98 (1998-2005)
ALFA ROMEO - U7 NUOVO SPIDER (1995-1998)
ALFA ROMEO - 13 NUOVO SPIDER M.Y. (2008-2010)
ALFA ROMEO - U9 SPIDER '98 (1998-2006)
LANCIA - SL DEDRA FL.94 1580-1750 8/16V 2000 (1994-1999)
LANCIA - SM DEDRA FL.94 1750-2.0 (1994-1999)
LANCIA - TN LANCIA DELTA MY 2011 (2011-2014)
LANCIA - SX LYBRA BZ (1999-2005)
LANCIA - SF N.DELTA 1400-1600-1800(1993-1999)
LANCIA - SG N.DELTA 2.0 -1750 132CV ('93-'99)
LANCIA - TH NUOVA DELTA 844 (2008-2011)
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Old 2 Weeks Ago   #8
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Re: Alternative Thermostat Housing?

Quote Originally Posted by g8rpi View Post
Not sure how a radiator "place" would check the flow rate of a Barchetta pump, seizure and leak check maybe.
Only approximate way I know of is to check the pumped water flow return to the header tank AND also header tank outlet/water level which should "dip" when the engine is revved.

One can also do the above but this time you remove the return flow pipe, block off the it's inlet to the header tank and then put a pressure guage on the return pipe (ensuring header tank cap is on as well)
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Old 1 Week Ago   #9
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Re: Alternative Thermostat Housing?

Many thanks everyone, and S130 thank you very much for the list - you must be an alchemist to know stuff like that! I will advise - the car is with Mario my Italian Mechanic right now.
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Old 1 Week Ago   #10
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Re: Alternative Thermostat Housing?

IMMEDIATE RETRACTION!

How the F I got this screwed up is beyond me. I've listed the water pump info and you were after the thermostat housing information.

I'll correct this post with another.

Sorry all. Don't normally mess up likes this.

Quote Originally Posted by s130 View Post
For the 183A engine then the thermostat P/N is: 60586222 WATER PUMP

Also used in following vehicles: (so you can locate housing in a scrap yard)

FIAT - PK BARCHETTA (1995-2004)
FIAT - 1V BRAVA BZ/DS (1995-1998)
FIAT - 1M BRAVA G.98 BZ/DS (1998-2001)
FIAT - 1U BRAVO BZ/DS (1995-1998)
FIAT - 1L BRAVO G.98 BZ/DS (1998-2001)
FIAT - PC COUPE' (1994-1996)
FIAT - PX COUPE' GAMMA'96 (1996-2000)
FIAT - PT MAREA BENZINA (1996-1999)
FIAT - 1Q MAREA BZ GAMMA'99 (1999-2002)
FIAT - 1N PUNTO BZ (1999-2003)
ALFA ROMEO - U1 145 BZ/DS (1994-1996)
ALFA ROMEO - T5 145 GAMMA 97 (1997-1999)
ALFA ROMEO - W3 145 M.Y. '99 (1999-2000)
ALFA ROMEO - U2 146 BZ/DS (1995-1996)
ALFA ROMEO - T6 146 GAMMA 97 (1997-1999)
ALFA ROMEO - W4 146 M.Y. '99 (1999-2000)
ALFA ROMEO - W8 147 BZ/DS (2000-2010)
ALFA ROMEO - U5 155 ASPIRATO (1992-1996)
ALFA ROMEO - T3 155 GAMMA 96 BZ (1996-1997)
ALFA ROMEO - T7 156 BENZINA (1997-2002)
ALFA ROMEO - X1 156 M.Y.2002 BZ/DS (2001-2005)
ALFA ROMEO - X8 159 MY11 (2010-2011)
ALFA ROMEO - W9 166 BZ-DS (1998-2007)
ALFA ROMEO - X9 ALFA 159 (2008-2010)
ALFA ROMEO - 12 BRERA COUPE' M.Y. (2008-2010)
ALFA ROMEO - U8 G T V (1995-1998)
ALFA ROMEO - X7 GIULIETTA (2010-2013)
ALFA ROMEO - 5Y GIULIETTA M.Y. 2013 (2013 - ...)
ALFA ROMEO - X2 GT (2003-2010)
ALFA ROMEO - W0 GTV '98 (1998-2005)
ALFA ROMEO - U7 NUOVO SPIDER (1995-1998)
ALFA ROMEO - 13 NUOVO SPIDER M.Y. (2008-2010)
ALFA ROMEO - U9 SPIDER '98 (1998-2006)
LANCIA - SL DEDRA FL.94 1580-1750 8/16V 2000 (1994-1999)
LANCIA - SM DEDRA FL.94 1750-2.0 (1994-1999)
LANCIA - TN LANCIA DELTA MY 2011 (2011-2014)
LANCIA - SX LYBRA BZ (1999-2005)
LANCIA - SF N.DELTA 1400-1600-1800(1993-1999)
LANCIA - SG N.DELTA 2.0 -1750 132CV ('93-'99)
LANCIA - TH NUOVA DELTA 844 (2008-2011)
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Old 1 Week Ago   #11
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Re: Alternative Thermostat Housing?

For the 183A / 188A engine then the thermostat P/N is: 60653946 THERMOSTAT - This part number may have been superseded.

Part also used in vehicles below

FIAT - PK BARCHETTA (1995-2004)10402/00 - WATER PUMP AND LINES M1,M2
FIAT - 1N PUNTO BZ (1999-2003)10402/10 - WATER PUMP AND LINES M10,M11
FIAT - 2U PUNTO FL.'03 (2003-2010)10402/15 - WATER PUMP AND LINES M15
FIAT - 2C STILO BZ/DS (2001-2003)10402/20 - WATER PUMP AND LINES M20
FIAT - 2V STILO F.L.L. 2003 (2003-2007)10402/20 - WATER PUMP AND LINES M20
ALFA ROMEO - T5 145 GAMMA 97 (1997-1999)10402/02 - WATER PUMP AND LINES M2 10402/05 - WATER PUMP AND LINES M11,M12
ALFA ROMEO - W3 145 M.Y. '99 (1999-2000)10402/01 - WATER PUMP AND LINES M5,M10,M15,M6
ALFA ROMEO - T6 146 GAMMA 97 (1997-1999)10402/03 - WATER PUMP AND LINES M2 10402/05 - WATER PUMP AND LINES M11,M12
ALFA ROMEO - W4 146 M.Y. '99 (1999-2000)10402/01 - WATER PUMP AND LINES M5,M10,M15,M6
ALFA ROMEO - W8 147 BZ/DS (2000-2010)10402/00 - WATER PUMP AND LINES M1,M5 10402/01 - WATER PUMP AND LINES M10
ALFA ROMEO - T7 156 BENZINA (1997-2002)10402/00 - WATER PUMP AND LINES M1,M2,M3,M5,M7,M15,M20 10402/10 - WATER PUMP AND LINES M10,M11
ALFA ROMEO - X1 156 M.Y.2002 BZ/DS (2001-2005)10402/00 - WATER PUMP AND LINES M1,M2 10402/10 - WATER PUMP AND LINES M5,M11
ALFA ROMEO - X2 GT (2003-2010)10402/00 - WATER PUMP AND LINES M1
ALFA ROMEO - W0 GTV '98 (1998-2005)10402/00 - WATER PUMP AND LINES M1,M2,M6
ALFA ROMEO - U9 SPIDER '98 (1998-2006)10402/00 - WATER PUMP AND LINES M1,M2,M6
LANCIA - SX LYBRA BZ (1999-2005)
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Last edited by s130; 1 Week Ago at 19:56.
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Old 1 Week Ago   #12
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Re: Alternative Thermostat Housing?

Quote Originally Posted by DaveHolmes View Post
Many thanks everyone, and S130 thank you very much for the list - you must be an alchemist to know stuff like that! I will advise - the car is with Mario my Italian Mechanic right now.
No, no alchemist just know a bit about driving the Fiat ePER parts resource.

As for why in my previous post, now redacted, I put water pump info I don't know how that happened. Old age and information/work overload in responding to posts here and moderating elsewhere.

I'm surprised no one else picked up my error......
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Old 6 Days Ago   #13
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Re: Alternative Thermostat Housing?

This is embarrassing. I think it is a human frailty to eliminate possibilities without going into all the possibilities before eliminating them. I have an Italian Mechanic who decided to do things properly. He went to a different radiator shop who redid all the tests done by the other. Head gasket fine. Thermostat fine. Water pump fine. They took off the radiator and weighed it empty, and it came up way overweight. The top and bottom tanks off, and they found that only 16 radiator core tubes were open out of a total of 120! I had assiduously performed two radiator flushes (Mario laughed and said the spares shop flush I bought was as good as useless). After cleaning out the cores and reassembling, the car is running as cool as a cucumber (a refrigerated one!), This has been going on for a long time and I am so relieved! Thank you one and all for your very valid suggestions, and S130 thank you for your valuable research - on file for future reference! Very grateful!
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Old 5 Days Ago   #14
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Re: Alternative Thermostat Housing?

I understand your embarrassment and pain

I should have also mentioned another way to check overall flow that would have possibly picked this clogging up. I'll mention now for the sake of completeness.

Note: This test will cover thermostat and flow and is worth practicing on a working system just so you know what the effect/feel is.

1) Start car from cold
2) Let it idle
3) grab top radiator hose in one hand
4) grab bottom radiator hose in the other
5) hang on to both and wait, wait, all very boring
6) top radiator hose will begin to get hot, then hotter and hotter still as time passes
7) bottom radiator hose basically remains cold, cool-ish, luke warm
8) the differential of temperatures between (6) and (7) will be vast with the top hose possibly too hot to hold
9) at some point the thermostat will open and SUDDENLY AND QUICKLY the bottom radiator hose will rapidly become very very hot
10) (9) is almost a binary event.

The almost binary event shows that (a) the thermostat is opening and not stuck open and (b) that there is good water flow through the radiator matrix.

Just by their nature of design most thermostat failures are in the open or partly open state. Were this the case then the bottom and top radiator hoses would increase in temperature together with the bottom slightly lagging the top. If the thermostat is OK and the radiator somewhat blocked then when the thermostat opens then the bottom hose temperature will climb more slowly.

Running this test is a bit like watching paint dry and one is bent over the bonnet area hanging on for 10 to 20 minutes but it is critical that you do so because the binary event happens very quickly and if you miss it you have to start all over again the following day or many hours later.
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