Engine Bay Pics: Post Yours Here, Post yours and comment on what you see in other's pics |
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Engine Bay Pics: Post Yours Here, Post yours and comment on what you see in other's pics |
pbanders |
May 20 2022, 04:58 PM
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#1
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Senior Member Group: Members Posts: 939 Joined: 11-June 03 From: Phoenix, AZ Member No.: 805 |
I always learn something when I see other people's engine bay pics, so I thought I'd start a topic where we can post pics and have others comment on what they see. I'll start by posting my pics with a few comments.
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pbanders |
May 20 2022, 05:01 PM
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#2
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Senior Member Group: Members Posts: 939 Joined: 11-June 03 From: Phoenix, AZ Member No.: 805 |
Passenger side, looking down
* Yes, those are the 50 year-old plastic fuel lines. Hopefully, to be replaced later this year. * The red/black wires at the bottom are a permanent connection for my trickle charger * Battery cover and acid mat * Decel valve (vacuum limiter) in place and correctly plumbed. While this device is often though of as being solely for reduced emissions, it has a second purpose. When the throttle is closed while engine braking, vacuum in the intake manifold can approach 25 inHg, as compared to 10 to 15 inHg at idle. This vacuum is applied to the MPS, which means the full-load diaphragm in the MPS (the thing that cracks due to fatigue stress, and makes your MPS leaky) receives additional stress, leading to early failure. The decel valve limits manifold vacuum to 18 inHg, significantly reducing stress on the full-load diaphragm. A lot of people with D-Jetronic remove the decel valve - I do not recommend it. The MPS is critical to the operation of your FI system, and a rebuilt unit is expensive. Attached thumbnail(s) |
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