The thread size for the ports left and right of the Thermostat on a Performer or RPM
August 31st, 2019, 06:51 AM
#1
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Location: Melville, Saskatchewan
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The thread size for the ports left and right of the Thermostat on a Performer or RPM
Is it 3/8"? I want to buy a couple of cooling fan switches and 70 amp relays for my 88.
September 6th, 2019, 06:47 PM
#6
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Some Teflon tape or Paste needs to be installed on any of the NPT fittings that thread into the intake manifold. Use the Teflon tape/paste on the first couple threads of the NPT fitting before the fitting is installed.
Do not use a torque wrench on NPT fittings. Use some Teflon tape/paste on the first couple threads of the NPT fitting. Install fittings into the intake manifold hand tight, then with a couple fingers on a box end wrench lightly snug up fitting. Use caution when tightening up NPT fittings, they have tapered threads and if over tightened can crack the intake manifold.
September 7th, 2019, 06:58 AM
#7
Out of Line, Everytime😉
Thread Starter
Join Date: Dec 2006
Location: Melville, Saskatchewan
Posts: 9,142
Some Teflon tape or Paste needs to be installed on any of the NPT fittings that thread into the intake manifold. Use the Teflon tape/paste on the first couple threads of the NPT fitting before the fitting is installed.
Do not use a torque wrench on NPT fittings. Use some Teflon tape/paste on the first couple threads of the NPT fitting. Install fittings into the intake manifold hand tight, then with a couple fingers on a box end wrench lightly snug up fitting. Use caution when tightening up NPT fittings, they have tapered threads and if over tightened can crack the intake manifold.
Last edited by olds 307 and 403; September 7th, 2019 at 07:01 AM.
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