16vt thermostat advice?

Hi. I'm trying to source a new thermostat for my 16vt. It seems to be hard to find one these days, unless you're willing to pay £150 for it... (found one in Germany at that price...) I've read somewhere that it's possible to use a Delta Integrale 16v thermostat, but I can't find the thread (may have been on another forum). Does anyone know for sure which thermostat to get? (or where to get one for Coupe 16vt?)

Wherever you go, 16v thermostats are as rare as hen's teeth... the 16NA is not the same as the 16VT thermostat

https://deltaparts1.wordpress.com/deltaparts-shop/fiat-coupe-parts/

http://www.afl-ricambi.de/Thermostat-Kuehlwasserthermostat-Motorthermostat-thermostat_1

£150 sounds about right, sadly. It used to be that the 16NA was unavailable and the VT wasn't too hard to get. The NA has an extra port; the spigot could be removed and the hole plugged I suspect (I've considered doing the opposite action on a VT part ).

I've also considered, but not yet seriously, an inline adaptation, and removing the existing thermostat from the housing: http://www.ebay.com/bhp/inline-thermostat

This Thema thermostat is slightly different but you should be able to get it to work.

I too have thought bout the in-line thermostat. There would be no re-circulation function

What about this one?
http://www.daparto.de/Teilenummernsuche/Mahle/TI9983D?categoryId=816&kbaTypeId=12210

Henk

Maybe. I'll compare it to my original one and see if looks similar. Thanks!

That's the N/A type. If the only difference is on of the outlets, and it's possible to block it, then it seems like a good option!

Indeed, a 16NA type (which is good for me, I might buy one just in case :

*As far as I know* the only difference is the 16mm spigot bottom left, which feeds the oil filter heat exchanger.

Ohh, I may get one too. Great find! I remember buying an OEM 16v thermostat about 10 years ago from the dealer. It was the last one.

And this is the one for the turbo 16vt?
http://www.daparto.de/Teilenummernsuche/Mahle/TI9983D?categoryId=816&kbaTypeId=12211
Henk

No, that's the same NA part.

For future info there is a plan being hatched to produce a 16v design thermostat that can be fitted to either the turbo or n/a models, front spigot for the oil filter coolant feed will be a plug or pipe design so hopefully it'll be a stock item by 2017.

I think I need a new stat for my 20v turbo. On mister auto there are some cheap ones for £50 (about reasonable) and a valeo one for 150!

Any difference?

Yes longevity as the cheaper after market thermostats often fail after a few years so if you're planning on keeping this long term go with the Valeo as they're an OE part.

Regarding the Mahle 16v part discussed above: I bought one from Daparto, but they didn't have any... they're sending me a Vemo part V30-99-0099 which they claim is the same part; we shall see.

I can't find any reference to the Vemo part that looks like a coupe part, though...

Aaaaand it isn't the same part, so back it goes. An email to the shop in the morning.

Completely different, it appears.

Daparto have refunded my paypal, so kudos for that to them. Shame the right part wasn't in stock.

Hmm where to get a thermostat then, for my recent purchase of a 16v NA..?

Ah... if we *knew* that...

But very pleased to see another 16NA in the area.

After driving the 20vt for a year it's time to put him away for some service and maintenance.

it's such a great surprise driving the 16v NA great fun still 😀🚙

Daparto have disappeared the part from their pages now.

I don't know enough Ukrainian to know what's going on here... clicky but it is the 16NA part.

Here is the 16NA part

Their catalogue lists the 16VT part as well, but incorrectly as the same part number and picture.

What about these?

http://www.nahradnidily.cz/products/fiat/coupe-fa175/20-16v/thermostat/3804/10195

Chrome translates the page nicely

That looks like the correct 16NA part - the Behr and the Mahle are the same thing, I think.

It's a bloody good price at sixty quid.

They are linking to the identical part for the 16VT too. Which is odd.

http://www.nahradnidily.cz/produkty/fiat/coupe-fa175/20-16v-turbo/termostat/3805/10195

I wonder if that's because Mahle have it incorrect on their database, and all(!) the resellers are linking to it?

I think I might try and order one. Blueboy, you're on my doorstep so if you're interested I'll try for two and split the postage? You never know, it might actually exist...

That's a great idea - I am in - thanks

If they turn out to be for a 16VT I'll take one of them off your hands Neil as a spare for my car.

Well, I went through the order process, hit the button... and it just returned to the front page before asking for either an email address or bank card details.

Curious; not sure what's going on there. I'll try the contact-us tomorrow.

Doh , 😐

Hope you have better luck tomorrow Neil, thanks

Hey Nigel
I guess you had no luck on this?

I can supply a new OE 16vt thermostat, pm me.

A couple of years ago when I needed a replacement thermostat for my 16vt the wonderful Svetlana at Motormech suggested I contact Deltaparts.co.uk who supplied a new unit. Brilliant service ( by Svetlana)

Dave G

<cough, cough>

You should have warned us about the NSFW picture on there

Didn't even notice it...

i

Pm sent

Did you ever hear back about the Czech part barnacle?

No, I'll have another go but currently I've got the lurgy and can't speak... and can barely concentrate.

Get well soon Barnacle

I've put in a request too now so will update when I know anything

I have drawn a blank on that "supplier"

Hmm. I'm almost breathing properly again now... dunno where to go on the thermostat front though now. Removing the feed to the oil interchanger will remove the need for that spur, but will need an oil cooler plumbing in, but does mean that an inline thermostat might be used.

I am lucky enough to have a new unused thermostat. I was looking at its construction and if the largest outlet could be removed from the housing it would be possible to just change the internals that fail.

The way it is made clearly shows that the ports have been added to the body, including the largest outlet.

Yeah, I've wondered about it. I think the build order for the part is:

- cast the body
- machine and tap holes
- add the spigots
- add the thermostat module
- finally, crimp on the main outlet pipe

It's that crimping that concerns me; I don't see how it would be possible *reliably* to open and then close it again. But I can see that with a little concentrated brutality the existing stat module might be removed without damage to the rest of it. (Offhand, I can't recall whether the bleed for the oil cooler is from the main body or is upstream of the stat valve).

I have noodled the idea that a thread might be cut into the crimp section and some sort of screw-on cover be fitted, but again, there's not a lot of metal to play with and I don't think a high-pressure joint would be safe.

Welcome back Barnacle - glad you are starting to feel better.

Being new to the 16v na world and having a car with a stuck open thermostat I thought this wouldn't be a problem - 'note to self - read more'

The 16v na has a couple more months on the road prior to being garaged for maintenance as my 20vt will be back on the road then.

At which point we will have an(other) old (broken) stat to play with so we may be able to come with a plan with that.

PS. I am hopefully moving back to your neck of the woods in March :-) so our neighbors will be treated to the mellow sounds of a second coupe again...

found this on a spanish web that ship from germany.

for the 16vT its cheap haven't bought it by should do for at least 4 years right?

https://www.recambioscoches.es/behr-thermot-tronik/7002650

See my comment on your other thread - appears to be out of stock.

Just answered on the other thread. Gave them a call and out of stock. Sorry for this.

Let's keep trying - maybe they can get some in from Behr?

If I get any info on parts here in spain I will let you guys know about it.

I just bought one from Deltaparts for my N/A, apparently they have only one left and no plans to get anymore due to almost zero demand.

I wonder about these rover parts - I need to check the spigot diameters: http://www.ebay.co.uk/itm/Rover-MG-75-TD...NE/322433693879

If it works how would you connect ir?

1) 'persuade' the existing thermostat valve to come out of the original housing
2) drill some pilot holes (if not already there) on the new stat
3) cut the top hose close to the outlet from the housing
4) insert inline thermostat

that would be a very neet job indeed.

Talking to the supplier:





So things look decidedly possible. The coupe thermostat has a 35mm output spigot so there might be an issue there, we'd have to suck it and see. Probably best on the 33mm option.

Search ebay for "35mm silicone hose". 35-38mm seems a popular size.

I have a vague idea that the standard hose is slightly flared at the end, so it could come down to that 33mm anyway. But either way works.

These guys still list the 16v thermostat in their active catalogue. http://bgautomotive.co.uk

Group buy?

Nope, that's the 20v part.

Im up for one too if any one cand find one.

Neil when will this group by be available?

Is the part number for Valeo 820456? or is that for the 16NA? Maybe there is a company in spain that has in stock, but can anyone confirm that this part number if for the 16VT and not for the NA ?

And this reference for QUINTON HAZELL : QTH520K ?
There could be a posibility to maybe get about 4 of them in 3 weeks at a decent price, but they can not confirm that this QH refrence is the same as the 16vT thermostat.

this web page has tolled me that they will have the QH in stock in about 2 to 3 weeks.

HE sayed to me that he cant assure me that the image is the same as the part, but if it is its the 16vT thermostat.

check the webout:

https://www.oscaro.es/termostato-refrigerante-quinton-hazell-qth520k-1281930-316-p

If anyone can confirm this part number I will try and get a group by for this if there is interest.

Sorry fr spaming this jajajaj.

Opieoils have just emailed me that they can order and have in stock in 2-3 days part nº MAHlE TI 99 83D they confirm its the same as the photo.

http://www.opieoils.co.uk/pv-164967-integral-thermostat-mahle-ti-99-83d-single.aspx

Is any one interesetd so that we can pull out a group buy?

the QH part illustrated is the NA part; modify it to T by plugging the unused port. I like the price of the QH...

The Mahle part is also the NA.

IF its possible and a easy job and people are interested I have no problem in ordering and shipping them to the UK.

I found this searching for inline thermostats: http://www.ipsco.org/Pantera%20Parts/remotethhousing.htm
It's available with 1 3/8" to 1 3/8" hose connections. If I calculated it correctly, that's apx 35mm?

Don't know if Chevrolet thermostats comes in the preferred temperatures, but I recon it should be a good alternative!

Here's another page with better details, including pictures of the thermostat used. It's 54mm diameter.
http://www.ipsco.org/Custom%20Services/Remote%20thermostat%20housing%20133.htm

Check out my how to on buying and fitting inline option

I am interested too. Can't we just organise a group buy and e-mail the suppliers (BGA,Valeo, QT, etc) to make some parts for us?
I don't think that online thermostat is the best idea.

Here is the link to my inline conversion using UK manufactured parts costing between 50 & 60 GBP including the thermostat itself when I did it.

16v Inline thermostat How To

The parts are available from Specialist Components in Norwich who I can arrange a group buy / discount from if required.

The part looks like this...


The finished article looks like this...

Tidy, Rich. Have you run the engine yet?

Only static in the garage - up to fans coming on and back again

Sadly I did not attach startrek at the time so have no recorded temps

But - looked to behave pretty normally

Is it possible to replace only the inner thermostat and keep the housing?

Not really, one end is an ally flange and the other has ally retaining posts, which you can see on the How To pics

I sent some e mails to the producers, BG automobile and Mahle Original about the item and only BGA answered:

"Dear Dimitris

Thank you for your email

Unfortunately this item is now obsolete, apologies

Kind Regards,

Tim S******s - Customer Service Manager

BG Automotive Ltd
BGA House, Cheney Manor Industrial Estate,
Swindon, Wiltshire
SN2 2DS United Kingdom
Tel: 01793 491 777 (Ext: 122)
Fax: 01793 491 555
Web: www.bgautomotive.co.uk


BG Automotive Ltd registered in England and Wales. Registered number: 03635800."

So, I was thinking, if someone make a list of members interested in this thermostat and send some e-mails to all these producers, they would think about produce some parts, wouldn't they?

Mahle answered too...

"Dear Dimitris,

thanks for your inquiry and your interest in our Mahle products. Unfortunately the information is correct, item TI 99 83D is out of production.

Wish you a nice afternoon.


Mit freundlichen Grüßen / Kind regards

Mrs. Julia M*********r
MAHLE Aftermarket GmbH
Aftermarket Europe Sales (MEE)

Pragstr. 26 - 46, 70376 Stuttgart, Germany
Phone: +49 (0) 711 501-12928, Fax: +49 (0) 711 501-4412928
julia.m*******r@mahle.com, http://www.mahle-aftermarket.com

MAHLE Aftermarket GmbH, Location: Stuttgart, Registered: Amtsgericht Stuttgart HRB 14837
Management Board: Arnd Franz, Olaf Henning "

A lot of the French coupe owners are on the search also.

And sadly, no-one is getting anywhere. Every time I've found one advertised, it's been out of stock and not (for obvious reasons) being restocked.

I wonder if this could be solid printed? It would need a high-temperature resin... certainly not an additive nylon-on-a-spool type, but a lasered resin might work.

CNC could copy it I think..

Oh yes, but the issue is getting the new stat module in.

I think we'd be better CNCing the basic shape, but with some extra shoulder where the output spout is currently crimped, so it could be bolted on/in old school style.

E mail conversation with BGA continued and I asked if there is a way to order some parts for a group of Fiat owners. The answer:

"Dimitris

Thank you for your email

We can put these back in to production but the MOQ would be 200?

Kind Regards,

Tim S*****s - Customer Service Manager

BG Automotive Ltd
BGA House, Cheney Manor Industrial Estate,
Swindon, Wiltshire
SN2 2DS United Kingdom
Tel: 01793 491 777 (Ext: 122)
Fax: 01793 491 555
Web: www.bgautomotive.co.uk"


So.... is there anyone who wants to buy 199 thermostats????

200 x £50 each = £10,000

Hmmm, let me have a look down the back of the sofa...

There are fifty UK cars on the road... and the same 16VTs. It's a worthwhile thing at that price point, but (a) the club doesn't have the funds and (b) I think Dave's £50 is probably optimistic.

This is a wrong way of thinking. They wouldn't produce them for us only, there is a need of them, a lot of owners are looking for them and I believe that if a company produce some items, they will be gone in reasonable time.

Even 20 owners might seem like "a lot" and I agree £50 is optimistic, perhaps £100 is more sensible for a limited re-run like this. I feel your pain, but I think BBR's in-line solution should work, although I would try to get the in-line thermostat sensor closer to the old thermostat houing if at all possible.

But here's a left field suggestion, could you use the ECU temperature reading with a "barnacle 16v thermostat widget" to control an electrical in-line valve?

You *could* (would be easier with the analogue signal though) but you'd be silly ill-advised to leave a known and mature technology (i.e. wax capsules) for something new and untried.