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Old 10-02-2017, 10:58 PM   #661 (permalink)
Aero Wannabe
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Join Date: Dec 2007
Location: NW Colo
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TDi - '04 VW Golf
90 day: 60.98 mpg (US)
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Cool project. I bought the magazine in '82 but never built a Centurion. You are getting some amazing mileage with 35 year old technology.

60 mpg hwy highest, 55+mpg lifetime
TDi=fast frugal fun
make NOx not Carbon

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Old 10-07-2017, 08:48 PM   #662 (permalink)
Changfa diesel + Suzuki
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Join Date: Jul 2012
Location: Northern, NY
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Centurion - '74 FIAT X1/9 Centurion Full Race DNA
Last 3: 143.5 mpg (US)
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Replacing the Original Centurion's water pump.
The original water pump is externally mounted on this Kubota D750.
A Quick Recap:
This particular early Kubota D750 was thermosiphon cooling which would not have been adequate for this application. So, to address this, R.Q. Riley added a water pump and thermostat.
The water pump itself is still relatively cheap if purchased brand new (under $25 USD). And the thermostat is about another $7.
In the last photo you can also see a new oil filter (it's red). While the water pump was off, I replaced the original Kubota oil filter.







Another project done.
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Old 10-08-2017, 03:14 AM   #663 (permalink)
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Location: Victoria, BC
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Topoff (RIP) - '92 Geo Metro LSi
90 day: 48.54 mpg (US)

'91 Miata - '91 Mazda Miata
90 day: 27.11 mpg (US)

'86 Fiero GT - '86 Pontiac Fiero GT

Purple Penny Pincher - '95 Pontiac Firefly Base
90 day: 43.68 mpg (US)

Jett-Black - '01 Volkswagen Jetta
90 day: 39.32 mpg (US)

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)
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Interesting. I'd better confirm my D905 doesn't have such a water pump setup...


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urba centurion

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