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Discussion Topic:
Stromberg 97 Idle Screw Adjustment
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V8JR |
12-20-2017 @ 6:12 PM
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Member
Posts: 95
Joined: Mar 2012
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When installing a Stromberg 97 carburetor what is a good starting point for how many turns out on the idle needle screws? Once running, any tips on fine tuning the idle screws? Thanks - V8JR
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ken ct. |
12-20-2017 @ 9:19 PM
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Senior
Posts: 1513
Joined: Jan 2010
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7/8 to 1 turn out will get you real close. ken ct.
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TomO |
12-21-2017 @ 6:49 AM
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Senior
Posts: 7256
Joined: Oct 2009
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To fine tune turn 1 screw 1/4 turn in and check the vacuum reading, if it is higher turn the other screw 1/4 turn in, if it is lower, back off the 1/4 turn and add 1/4 turn out, check the vacuum and if it is higher back off the other screw 1/4 turn. Because the idle mixture screws can affect the other side of the carburetor, what ever you do to one side, do to the other side before making further adjustments. Use your vacuum gauge while adjusting the mixture, to get the highest vacuum at idle.
Tom
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ibshane |
12-21-2017 @ 7:18 PM
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New Member
Posts: 147
Joined: Oct 2017
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I have installed a PCV valve in my '37 V8/85 When setting the idle mixture using a vacuum gauge do I put the gauge in tandom with the PVC valve or in place of?
This message was edited by ibshane on 12-21-17 @ 8:15 PM
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TomO |
12-22-2017 @ 8:40 AM
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Senior
Posts: 7256
Joined: Oct 2009
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A properly installed PCV valve will not affect the vacuum readings, so either option should work.
Tom
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V8JR |
12-22-2017 @ 9:12 AM
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Member
Posts: 95
Joined: Mar 2012
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Thanks guys for the help
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ibshane |
12-22-2017 @ 12:41 PM
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New Member
Posts: 147
Joined: Oct 2017
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Thank you!
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