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Author Topic: Inline coolant thermostat  (Read 196 times)

veggie

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Inline coolant thermostat
« on: July 14, 2022, 03:34:15 PM »

Does anyone know of a car (or other vehicle) that uses and "Inline" coolant thermostat?
Something that does not fit into the engine block, but instead mounts inline with the hoses.
The water jacket blanking plate on my R175 does not have the room to machine a port and flange connection for a conventional automotive thermostat/housing.

My other option would be to use a solenoid valve connected to a temperature switch/sensor.
- 6/1 GM90 Listeroid - Delco 33si Alternator
- Changfa R175 - Lease/Neville Alternator
- JiangDong R165 Air cooled - 2 kw

dieselspanner

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Re: Inline coolant thermostat
« Reply #1 on: July 14, 2022, 06:26:20 PM »
Hi Veggie

Have a look at the Land Rover TD5 set up.

Cheers
Stef
Tighten 'til it strips, weld nut to chassis, peen stud, adjust with angle grinder.

veggie

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Re: Inline coolant thermostat
« Reply #2 on: July 14, 2022, 06:41:50 PM »
Good call spanner !
And it comes with a 190f thermostat inside.
$40 on Amazon

Thanks
- 6/1 GM90 Listeroid - Delco 33si Alternator
- Changfa R175 - Lease/Neville Alternator
- JiangDong R165 Air cooled - 2 kw

dieselspanner

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Re: Inline coolant thermostat
« Reply #3 on: July 14, 2022, 09:38:31 PM »
That's the one, they're even cheaper on eBay UK!

Cheers
Stef
Tighten 'til it strips, weld nut to chassis, peen stud, adjust with angle grinder.

keith71

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Re: Inline coolant thermostat
« Reply #4 on: July 15, 2022, 12:23:55 AM »
Thank you diesel spanner. Ordered 2 for less than $28.. Perfect for my R170 that has little room for a regular housing like veggie's does.. Everything is plastic in automobile cooling systems today and hold up just fine at water temps of 225-230f and 16psi pressure.
Should be no issue running these on a little changfa.
Jiangdong R170 with 2000 watt Belt drive Gen Head and a 12 volt 10si 63 amp alternator..
Kubota D722 8200 watt Mecalte head, and a Leece 110-555 24 volt alternator.

veggie

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Re: Inline coolant thermostat
« Reply #5 on: July 15, 2022, 02:18:14 PM »
That's the one, they're even cheaper on eBay UK!
Cheers
Stef

Yes $24. I ordered one to try out.
Not sure of the hose size? I may have to make/buy some adapters to convert it to the current 3/4" hoses in my system.
- 6/1 GM90 Listeroid - Delco 33si Alternator
- Changfa R175 - Lease/Neville Alternator
- JiangDong R165 Air cooled - 2 kw

dkmc

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Machinist, fabricator, designer, daydreamer.... mostly.
6/1 Ashwamegh w/ ST head
6/1 Metro w/ ST head
12/2 Metro w/ ST head
Changfa ? w/ ST head it's a big 'un
Several Hit & Miss engines
IH 330 Utility 1957
MF 1529 2011

dieselspanner

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Re: Inline coolant thermostat
« Reply #7 on: July 17, 2022, 08:10:19 AM »
Hi All

Having seen the lovely bit of kit in the last post I started thinking......

How about a female / female BSP (or NPT, for the 'States) union, sized to hold a standard thermostat with a hose tail / barb in each end sized to whatever pipe work you are using?


https://www.ebay.co.uk/itm/380855815969?hash=item58acc68f21:g:QYoAAOSw8lpZLYKt


https://www.ebay.co.uk/itm/233574099957?hash=item366219ebf5:g:POUAAOSwGfVeqZCa


Drill a small hole in the flange of the 'stat to allow circulation (to get the hot water moving around a bit) then fix it into the union with a gasket, or even simpler, some silicon sealant.

Two jubilee  (hose) clips and you're done!


Cheers
Stef
Tighten 'til it strips, weld nut to chassis, peen stud, adjust with angle grinder.

veggie

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Re: Inline coolant thermostat
« Reply #8 on: July 17, 2022, 03:40:36 PM »

They are also made specifically for go-kart racing.
Like this one:
https://www.ebay.ca/itm/372319106918?hash=item56aff2b766:g:PZUAAOSwxJNfO7Yu

I could not find one in my price range. That's why I went with the Land Rover version.
- 6/1 GM90 Listeroid - Delco 33si Alternator
- Changfa R175 - Lease/Neville Alternator
- JiangDong R165 Air cooled - 2 kw