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.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiEI8qsS1_IU-41obS5kMgSCW3OMu9ygItaOUccvDu-ndgEZERjS08xRPvERglPlggv-1nRQ5QsdODePjieJhaTAwq6Yzi-H6XLCtY7OYRqqNMu8-DCImmBkqaoBqRvsi7gNocpy3owFCo/s640/IMG_0779+%25282%2529.JPG) |
As it arrived. Pretty good shape, actually. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVRi73O-4CI5YVAn_X5bgfc6cEvP_5xS9-niqKizjR1LBMm4XAx3Muz822u0Ikm2LDkUrSPBDhIi0Vrfv0LjVcDKxP_nbLxAXlgJ-bOuDPwWYjlE7oWfygJNuthMtN4HzVb0jnjBwwOLH9/s640/IMG_0780+%25282%2529.JPG) |
Following some love and attention from a wire wheel. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiByEy-XftCfYhFlBiLlC05h_3TRsH4FFBI_jDs9uG04xWH_QouPOBGFpArknno4ibdfP_8NqxuSRt5mH9-yFpjn66Q2V36Bq27LROZtjX6NGmpH9HjMWAlYxMwxP7Pf5QQGE7MZd_t88t0/s640/IMG_0782+%25282%2529.JPG) |
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.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpniey3O4mkfPftGVuBUxU-Fhnv4Q3LzYDLpnfAtibfkaAIxPhu0IYbk_gNOzkHm-z01Zewc2fUYS8JoY7SOExMsg7oJx5H3D85uxordpAgscnBt7qRN6JvZEFiQSGeSgXgWuj4q3Y8WA/s640/IMG_0899.JPG) |
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.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyhCIiwIvVtYgJK-MBiiy-UW5RAHtP36Pe3Z-p0G5CRIMkWHHc8EVx_Gy088RT9a1X1re4XN-c0jMDKzSZIEOilR5vHemB7ILBs0BwerxYamgleIOwkskB5Yqj4Uh3sm_YZLSiFyLVT81N/s640/IMG_0844.JPG) |
The coolant outlet fitting and sending unit. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCH5ZIAe9vxhFSeOx5NvsC1EyvXbS73zBGxoH3l7c20wYUlFPhF_eRGt3cHcqlk6UNF8n6378GN7V-_WEhqGDO1dVJkoi-KvWng4TymmRAoEjO0JzdgZFRqZMzh_2KWHn78QWcarQPgxUb/s640/IMG_0842.JPG) |
Water pump studs and the thread sealant. |
Following that, a new gasket, sealed with the
Gasgacinch gasket sealer.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZ7DzmZ_rJiRs1CeY6uHr6idml95feX6qthZVvUxLX-xF1bcVhMTztSxFhP_Ilg8IZ2vdPFcXMIvRM5sb_Fz3E7JO8cCrU5eun5DOS1dzPRRjgGzZ8zDo6Opeo-XUeBhAZV_48lkPpfNR7/s640/IMG_0843.JPG) |
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.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglD2AANvG87-tbE0uXwUMSTLznZp6_Hji0FPvEZl7UwpQI0NLgLI8X4vsqdRITVGLMZOTKjq-Q31HmG5S6pyxv4wLU2ILTWoJ_fusWPMbKWqEy05TVmiqalFASW87QtDNzEOZ5MjlvBBk/s640/IMG_0851.JPG) |
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!
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZQhtXT0Cl8deI2d8dlP7edEJdyn8ThIvczeqPBKJRhQ0fzxuVrWBm_dEAWhgTVMKktIUXAOgnorCjByEr_-OpZkzAbLTUwbVS3U3ic8oF-u1-5tJgnbSRc7gOXXnozOheKMLCEbTI2Ttn/s640/IMG_0845.JPG) |
Organic, I suppose. Interesting all the same! |
Installation of the elbow with a new gasket completed the job.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQpRnvFpHUwD6hPXwEVjwCPCoiwYWHgEu7KDChyphenhyphen_sVaDzrjYrESx5durV_J0YYfR5RpSIHzRZ8wySqtYjNoTmcNIh7OyTCb_egYIy1Of5yaqTdQ2MlnZPfMES8pRyVoiCfZWFyi8E8rfI/s640/IMG_0905+%25283%2529.JPG) |
All done! |
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