Triumph Spitfire 1500 - How To Change Cooling Water Pump GWP128 - Ethylene Glycol Coolant

In this video, we look at how to go about changing the fresh water pump P/N GWP128 on a classic British Triumph Spitfire 1500.

Coolant Ethylene Glycol

We first drain some of the coolant down from the radiator, remove the alternator and drive belt.
Then removing the water pump and thermostat cover.

We reinstall the new water pump and thermostat cover gasket, along with the alternator and drive belt.
Topping the coolant up to level when all is done.

We also had a slight leak on the thermostat cover after we fitted the new gasket.
We fixed this by adding some RTV silicone to the mating facing.

Time Stamps -

0:00 Intro
0:20 Isolate Battery
0:40 Belt Driven Fan / Electric Fan
01:50 Parts / Coolant Needed
04:30 Removing Lower Hose
06:10 Block Pet Cock
07:26 Taking Tension Off Alternator Drive Belt
09:00 Removing Alternator Drive Belt
10:25 Removing Top Hose & Thermostat Cover
11:14 Pulling Old Thermostat
11:45 Removing Water Pump
13:00 Inspecting Old Pump
14:35 Cleaning Thermostat Cover
17:40 Refitting Thermostat & Cover
18:30 New Water Pump
19:20 Water Weep Hole
20:05 Fitting Water Pump
20:46 Checking New Pump
21:30 Fitting Alternator Belt
22:00 Setting Belt Tension
22:43 Fitting Top Hose & Lower Hose
23:42 New Coolant
26:00 Test Run / Leak
28:42 RTV Blue Silicon
30:28 Second Test Run
31:49 Thanks For Watching