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Holy vacuum leaks!

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Old 06-08-2018, 01:04 PM
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Johnny G Pipe
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Default Holy vacuum leaks!
First time I have done this test, I never realised it would be so informative..this car so deserves some love!

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Old 06-08-2018, 02:05 PM
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76FJ55
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Are you sure you're not sucking it into the intake? try putting the air box back in place and run the test again to verify your results.
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Old 06-08-2018, 02:19 PM
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Yep will do, although it was more convincing in reality than it sounds thru the iPhone’s mic..a noticeable and replicable differential in rev change between individual intake arms.
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Old 06-08-2018, 02:59 PM
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Good god, man (in the voice of "bones") what is that scraping sound?
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Old 06-08-2018, 02:59 PM
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Makes me want to spray my engine.
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Old 06-08-2018, 03:10 PM
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LOL, I think the noise is the sound of 12 simultaneous giant air leaks..
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Old 06-08-2018, 03:12 PM
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Or something to do wirh my blocked idle adjuster, see separate thread. That noise got louder when I tried to adjust the idle. Jeez, these cars.. :-)
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Old 06-08-2018, 05:30 PM
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granprixweiss928
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what are you spraying
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Old 06-08-2018, 06:14 PM
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Carb cleaner.
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Old 06-09-2018, 07:44 AM
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OK, now I'm shopping at my friendly non local ebay silicone hose store, this is fun, I get to choose colo(u)rs.

I am going to buy some 3mm lengths and a (90mm?) coupler for the plenum to throttle body piece.

45mm ID looks right for my spider legs intake sleeves, they have a 46mm ED according to my measurements (I saw on a search folks using different ID's but for later cars maybe)

I seem to have a really big result from spraying the connectors to what is apparently called the deceleration valve, but I think I can just delete that thing and cap off the connectors? Put it in a box with the air pump?

Loving this learning curve..
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Old 06-09-2018, 09:00 AM
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Had the exact issue on all 3 of my rescues....that old rubber gets leaky....
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