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Thread: Do phenolic spacers really help with vapor lock for cars running webers?

  1. 03-28-2023, 11:35 AM #11
    aturboman
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    PMO also offers them as complete kits with studs and gaskets.
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  2. 03-28-2023, 12:09 PM #12
    Simonjjb
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    PMO is much better
    1968 911L Coupe - Golden Green
    1971 911S Coupe - Gemini Blue
    1973 911S Targa - Signal Yellow
    1974 914 2.3 - Sunflower Yellow
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  3. 03-28-2023, 12:10 PM #13
    66S
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    On 356s they put insulators between the carbs and manifolds but on 911s they go between manifolds and heads. I’d rather remove the studs from manifolds.
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  4. 03-29-2023, 03:02 AM #14
    John912
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    It's been a while, but I think I actually got the spacers for my 914-6 w/stock 2.0 engine from the source listed below installed between the carbs and manifolds. I had the gaskets and purchased the longer studs separately. Didn't want to risk removing studs from heads with engine in car. In fact, familiar with 356/912, I never realized 911 insulating spacers even got mounted at the head. Maybe more effective, but adding spacers under carbs was much easier and did the job at keeping carb fuel cooler. Linkages needed to be readjusted. Obviously, you want to make sure ignition timing, valve adjust and oil cooling are all correct.

    https://www.ebay.com/str/dashmanshot...75.m3561.l2563
    John Schiavone

    Connecticut

    356 Cab, 66 911, 914-6, 550-Beck, 981 Cayman, 54 MV Agusta Dustbid
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  5. 03-29-2023, 12:51 PM #15
    sanders
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    Yes, and use the best fuel you can find.
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