XJS air intake.
#1
02-10-2009, 12:31 PM
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XJS air intake.
Hi I just found your site and I'm impressed. You guys seem to know what you're talking about. So can anybody answe this.
I have a 1987 XJSC with the 5.3 V12. When I place my hand over the air intake for the left bank, it almost sucks my hand in. When I do the same to the right bank there's nothing. The engine runs fine, lots of power and only has 80,000k on it. Is there a problem or is this normal?
I have a 1987 XJSC with the 5.3 V12. When I place my hand over the air intake for the left bank, it almost sucks my hand in. When I do the same to the right bank there's nothing. The engine runs fine, lots of power and only has 80,000k on it. Is there a problem or is this normal?
#2
02-10-2009, 12:42 PM
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02-10-2009, 01:08 PM
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Greetings,
Tha auxilliary air valve on the V12 is a temperature controlled air bypass valve that controls engine idle speed. It is located at the back of the left intake manifold, and draws inlet air from the left air cleaner only.
The balance pipe that connects the two intake manifolds at the rear distributes air equally to both sides of the engine: so even though most of the air at idle is entering through the left air cleaner only, all is well. If your engine performance is good, both air cleaner snorkels are sucking just fine as you drive down the road with the throttle plates open. All normal.
Tha auxilliary air valve on the V12 is a temperature controlled air bypass valve that controls engine idle speed. It is located at the back of the left intake manifold, and draws inlet air from the left air cleaner only.
The balance pipe that connects the two intake manifolds at the rear distributes air equally to both sides of the engine: so even though most of the air at idle is entering through the left air cleaner only, all is well. If your engine performance is good, both air cleaner snorkels are sucking just fine as you drive down the road with the throttle plates open. All normal.
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02-10-2009, 06:53 PM
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