This will be quick as it was simply a clean and assemble job. In my quest to convert the Mk1 motor to a Mk2 motor, the water pump body needed to be changed. With the Mk2, the intake manifold changed design and now incorporated a water pass-through into the cooling water circuit. The water pump body accomplished this by providing an outlet at the top, under the elbow. A new water pump body was easily obtained via
my favorite forum's Buy/Sell/Trade section.
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| As it arrived. Pretty good shape, actually. |
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| Following some love and attention from a wire wheel. |
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| The thermostat elbow prior to cleaning. I left it dull, but got the crud off. |
I got it all cleaned up and then applied my normal two coats of primer and two coats of low-gloss black.
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| Post-paint. |
I cleaned up and installed the outlet fitting for the manifold and the inlet fitting for the coolant return pipe. I also installed a new temperature sending unit.
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| The coolant outlet fitting and sending unit. |
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| Water pump studs and the thread sealant. |
Following that, a new gasket, sealed with the
Gasgacinch gasket sealer.
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| Gasket installed. I used Gasgacinch on both sides of the gasket and on the body and water pump itself. |
With the gasket in, the water pump was installed and bolted down. I couldn't find a torque spec so I used the spec from a similar size bolt and settled on about 15 ft-lbs. Of note, here, the water pump has a weep hole on the bottom so you can see if there is leakage around its seals. The weep hole needs to go on the bottom of the assembly.
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| The weep hole. This is a new water pump, by the way. |
Next up was to install the thermostat. I bought a new one a while ago and needed to get it out of the old body. There was some mysterious growth there, but it cleaned up just fine!
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| Organic, I suppose. Interesting all the same! |
Installation of the elbow with a new gasket completed the job.
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| All done! |
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