Identification help - JeepForum.com
 
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post #1 of 5 Old 11-14-2019, 02:49 PM Thread Starter
korYJ87
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Identification help

Tracing vapo/vac lines to locations...
The schematic of course is an easier trace than actual. I’m looking to Reaffirm ID to the components circled. To note these components tie-in together w/ emissions canister/dual pto/pcv valve/carb

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post #2 of 5 Old 11-14-2019, 06:31 PM
Boojo35
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1987 YJ Wrangler 
 
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Fill out your profile. Need more info on your Jeep. Is it Canadian or Us? As I recall there are some minor differences between the two.

The first pic is your 4" and !0" vacuum switches which replace a TPS basically through logic.

The second pic is not something on my 87 but I believe it is a PCV related control that was deleted through a recall.

The black canister thing is a reservoir which I believe is still required and in the correct place.

I spent a gob of hours researching my 87 and getting the vacuum stuff sorted back out.

What is the root cause of you researching this? Does it not run right?

If you cannot fix it with a hammer then it has to be an electrical problem.
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post #3 of 5 Old 11-15-2019, 08:15 AM Thread Starter
korYJ87
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Actually very happy with how it is running.
I’m trying to learn all I can on the vehicle. I figure if I’m gonna keep it I better learn how to treat it. The vacuum Lines are visually looking old and drying out. The schematic makes it look to easy and then reality laughs in your face.
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post #4 of 5 Old 11-15-2019, 10:19 AM
bpounds
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First, go here and study.
http://www.gleebledorf.com/

First photo, see this page.
http://www.gleebledorf.com/vacuum.html

The black cylinder is either a check valve or a dashpot, not exactly sure. Called a vacuum reservoir on this page. But I'm not certain it is simply that on a YJ. Obviously it is not the main vac res.
http://www.gleebledorf.com/vac-mcu.html


Second photo, see this page.
http://www.gleebledorf.com/decel.html

Bill

1988 Wrangler,4.2L I-6, Howell EFI JP-1,CRT HEI Ign,AX15 ext slave conversion, Zone 2" lift + 1" BL + 1/2" booms, BFG 31 x 10.5, Bestop.
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post #5 of 5 Old 11-23-2019, 12:20 PM Thread Starter
korYJ87
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Thank you for the info!
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