Port thread size on the oil pump base SD1

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leylandracer
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Port thread size on the oil pump base SD1

Post by leylandracer »

Does anyone know the correct thread size of the ports on the SD1 oil pump base/cover? :?

Im just trying to get a adaptor for the Smiths capillary oil pressure gauge.

It look like the port on the old base had split (see previous thread) because somone? :( had used a tapered thread adaptor


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katanaman
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Post by katanaman »

Paul B
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Re: Port thread size on the oil pump base SD1

Post by Paul B »

leylandracer wrote:Does anyone know the correct thread size of the ports on the SD1 oil pump base/cover? :?

Im just trying to get a adaptor for the Smiths capillary oil pressure gauge.

It look like the port on the old base had split (see previous thread) because somone? :( had used a tapered thread adaptor
It's 1/2" UNF, but I have run a 1/4BSPP tap down mine so oil gauge fittings go in easily. The 1/4" BSPP is just a touch bigger than the UNF so it is no great drama to do.
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