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03-29-2020, 02:16 PM | #1 |
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Location: Suttons Bay, Mich.
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21 stud temp gauge question
Does the temp gauge bulb just screw into the waterpump? No special fitting? It looks like there is a tapered shoulder in the hole but not sure.
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03-29-2020, 02:24 PM | #2 |
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Re: 21 stud temp gauge question
The temp gauge used in these 21 stud engines is the capillary type; has the glass tube with red liquid. Yes, it seats on that tapered shoulder you refer to. The thread is 5/8 UNF. The later 24 stud engines use the electric type temp gauges. These screw into the heads with a 3/8 pipe thread. Will not fit the earlier engines
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03-29-2020, 02:39 PM | #3 |
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Re: 21 stud temp gauge question
Used one like this gauge on my '34 21 stud. No special fitting required...
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03-29-2020, 05:20 PM | #4 |
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Re: 21 stud temp gauge question
Ok thanks guys. I am running an aftermarket mechanical gauge and it looks correct I just was not sure if the waterpump needed a special fitting.
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03-30-2020, 03:25 PM | #5 |
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Re: 21 stud temp gauge question
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